&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2024/03/Creative-for-SSL.webp" alt="M2P Fintech" title="" width="100%" height="253">Welcome to our latest blog, where we dive into the critical security technique known as SSL Pinning. This method plays a pivotal role in thwarting eavesdropping attacks on the communication between an app and its server.SSL Pinning involves a process where, after the initial exchange of encryption keys, the app verifies the validity of the server's certificate. It achieves this by maintaining a list of trusted certificates on the device itself, which are then compared to the server's certificate in real time as the app operates.&nbsp;If there is a discrepancy, indicating that the server's certificate does not align with the trusted ones, the app promptly halts the connection.&nbsp;Types of SSL Pinning:<ul class="list-node" id="c5h0hkum0"><li>SSL Pinning using Certificate: This method has the drawback that we must update the app each time the pinned certificate expires. However, by anchoring upcoming certificates in the application, this problem may be resolved. We may use the hashed public key, which won't change for subsequent certifications, rather than pinning the entire certificate.&nbsp;</li></ul><ul class="list-node" id="8d24u2471"><li>SSL Pinning using server Public key:&nbsp;This method includes attaching the certificate's public key (certificate expiration need not be a concern here).</li></ul>Mobile applications must retrieve data from the server to display it to consumers. However, private data, such as the user's login and password, is occasionally transmitted between the program and the server. SSL Pinning is mainly used in the prevention of man-in-the-middle attacks.Man-In-The-Middle Attack &nbsp;This type of attack allows the attacker to covertly view data passed from the client to the server by using a specialized server called an SSL proxy. It is a tool that encrypts and decrypts data between the client and the server using different keys for each direction. Charles, a proxy server used for testing, is one such example. It works in several phases to intercept and analyze the data between the app and the server.  By sitting between the app and the internet, it allows you to examine and modify data in real-time to test the response of the application.&nbsp;<ol class="list-node" id="xyrs1alxr"><li>Instead of using the server's key to encrypt data, your app utilizes the public key of the Charles ProxyCertificate. The Charles Certificate is considered valid because the developer can install it on their device.&nbsp;</li><li><a class="link" href="https://www.kodeco.com/21931256-charles-proxy-tutorial-for-ios">Charles</a> may connect to the server using its public key after using its private key to decode all the data. Be aware that any developer can read all the data that your app sends over the network. &nbsp;</li></ol>SSL Pinning using Public Key &nbsp;<ul class="list-node" id="r0h4qy5p1"><li>Get public certificates using OpenSSL by typing a command in the terminal/console to get the PEM key. &nbsp;</li></ul>echo "Get HTTP/1.0" | openssl s_client -showcerts -connectwww.MyDomainName.com:443 &gt; myPemCertificateName.pem &nbsp;<ul class="list-node" id="93uejjeug"><li>Type this command to turn the created PEM key into .der format.</li></ul>openssl x509 -in "myPemFileName.pem" -inform PEM -out "myDerFileName.der" -outform DER &nbsp;<ul class="list-node" id="62sgzhr0g"><li>Use this command to get the public key from the URL in SHA256 format. &nbsp;</li></ul>openssl s_client -connect www.MyDomainName.com:443 | openssl x509 -pubkey -noout | openssl rsa -pubin -outform der | openssl dgst -sha256 -binary | openssl enc -base64 &nbsp;<ul class="list-node" id="bos2d0jr8"><li>443 is the safe port for HTTPS. If your website uses a different port, use that number instead of 443. &nbsp;</li><li>The result should look like this. &nbsp;</li></ul>A3r26k+KOMuKJHB5B67cpGqqPhF/GNUyNl2EPJKB65KJUe+hXMn1k= &nbsp;<ul class="list-node" id="munqf5sov"><li>Generate the Hash Key using this <a class="link" href="https://www.ssllabs.com/ssltest/">link</a> as well. &nbsp;</li></ul><ul class="list-node" id="a5wc1jmum"><li>Create a variable to store the Public key that we get from the certificate. &nbsp;</li></ul>static let sslPublicKey ="A3r26k+KOMuKJHB5B67cpGqqPhF/GNUyN2EPJKB6KJUe+hXMn1k=" &nbsp;Pinning with Alamofire &nbsp;<ul class="list-node" id="vlgnafls0"><li>Using the regular API can be complicated. Using Alamofire is recommended because it is an external library that offers a simpler way to work with APIs, making your life easier. &nbsp;</li><li>The ServerTrustEvaluating protocol is the foundation of everything. It allows us to evaluate server trust in various ways. Alamofire has several trust evaluators. You can read the full documentation <a class="link" href="https://github.com/Alamofire/Alamofire/blob/master/Documentation/AdvancedUsage.md#security">here</a>. &nbsp;</li><li>Select the ServerTrustEvaluator for each API. &nbsp;</li></ul> <img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2024/03/ss1.webp" alt="M2P Fintech" title="" width="100%" height="138"><ul class="list-node" id="7fgyhm915"><li>Then create a session with them, and you can customize your configuration. &nbsp;</li></ul> <img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2024/03/ss2.webp" alt="M2P Fintech" title="" width="100%" height="88"><ul class="list-node" id="p64ip70za"><li>rsa2048Asn1Header is a list of whole numbers that shows the algorithm and any additional information used with the public key. &nbsp;</li><li>This private func sha256(data: Data) -&gt; String function creates a coded hash using the sha256 method for the given data and encodes it in base64. &nbsp;</li><li>import CommonCrypto for sha256 algorithm &nbsp;</li><li>In SessionDelegate, the URLAuthenticationChallenge method is used to get ServerPublicKeyData &nbsp;</li></ul> <img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2024/03/ss3.webp" alt="M2P Fintech" title="" width="100%" height="44"><ul class="list-node" id="0b7oumb7i"><li>We can perform some actions using this delegate method and match our Public Key with Server Public Key. &nbsp;</li></ul> <img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2024/03/ss4.webp" alt="M2P Fintech" title="" width="100%" height="569">Implementing SSL pinning using a public key in iOS enhances security by ensuring that only trusted servers with specific public keys can establish connections. This method mitigates the risks associated with man-in-the-middle attacks and unauthorized access to sensitive data, providing users with a more secure experience.Stay tuned for more blogs on tech, engineering, and iOS development.&nbsp;This blog is written by <a class="link" href="https://teams.microsoft.com/l/message/19:2ef83816-29e0-4b52-8caa-64b0aeca1ec1_dd9ec8f1-8445-4b0a-92af-aa769014f3db@unq.gbl.spaces/1709882415989?context=%7B%22contextType%22%3A%22chat%22%7D">Senthilkumar</a>, SDE 2 – Product Engineering at M2P.

Setting up SSL Pinning using Public Key in Swift

<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/12/For-Wordpress-1.webp" alt="M2P Fintech" title="" id="8q7035tgd" width="100%" height="317">Efficient communication between components is crucial for the overall performance and responsiveness of a system in a microservices architecture.But how can you achieve optimal communication between the components?Dive into this blog as <a class="link" href="https://www.linkedin.com/in/maathavan-tr-vinayak-2ab153a3/" target="_blank" rel="noopener">Maathavan Vinayak</a>, our Engineering Director, guides you through the ways to achieve faster communication between inter-components in a microservices architecture to improve overall agility and efficiency.Communication becomes the linchpin for seamless operations in a microservices architecture. The figure below depicts the intricacy of communication within a sophisticated microservices architecture.<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/12/Architecture-1-2.webp" alt="M2P Fintech" title="" width="100%" height="254">&nbsp;<h2 class="heading-node" id="fddfmsxu9" style="text-align: justify">Asynchronous Communication</h2>Implement asynchronous messaging systems, such as message queues (e.g., Apache Kafka, RabbitMQ) or publish-subscribe systems. This allows components to communicate without waiting for immediate responses and improves system responsiveness.<h2 class="heading-node" id="7rumoo3ns" style="text-align: justify">Caching</h2>Use caching mechanisms (e.g. Redis) to store frequently accessed data close to the components that need it. This reduces the necessity to make expensive calls to other services repeatedly.<h2 class="heading-node" id="6gwb3mowd" style="text-align: justify">Load Balancing</h2>Implement load balancers to evenly distribute traffic among multiple instances of a service. This prevents overloading a single instance and ensures efficient resource utilization.<h2 class="heading-node" id="z8gp7300t" style="text-align: justify">Connection Pooling</h2>Use connection pooling to manage and reuse database or external service connections. This approach effectively reduces the overhead associated with creating new connections for each request.<h2 class="heading-node" id="2ik8msq4n" style="text-align: justify">Microservices Gateway</h2>Implement a microservices gateway or API gateway that acts as a single entry point for clients. It can consolidate multiple requests into a single request to backend services, thus reducing latency.<h2 class="heading-node" id="i9c8tkwf8" style="text-align: justify">Content Delivery Networks (CDNs)</h2>Offload static assets and content to Content Delivery Networks to serve them from edge locations. This reduces latency for clients.<h2 class="heading-node" id="gtwdc43ci" style="text-align: justify">Service Mesh</h2>Use a service mesh (e.g. Istio, Linkerd) to handle communication, routing, and load balancing between services. It provides observability and control over service-to-service communication.<h2 class="heading-node" id="fxkshmrw7" style="text-align: justify">HTTP/2 and gRPC</h2>HTTP/2 is used to improve efficiency in HTTP communication. gRPC offers high-performance, multiplexed, and strongly typed communication between microservices.<h2 class="heading-node" id="1p1mqqaia" style="text-align: justify">Connection Keep-Alive</h2>Configure connection keep-alive settings to reuse existing connections and reduce the overhead of establishing new ones.<h2 class="heading-node" id="lcjddkypg" style="text-align: justify">Optimize Data Transfer</h2>Minimize the amount of data transferred between services. Use protocols like Protocol Buffers or JSON Web Tokens (JWT) for efficient data serialization.<h2 class="heading-node" id="m5qavhcie" style="text-align: justify">Distributed Tracing</h2>Implement distributed tracing solutions (e.g., Open Telemetry, Zipkin) to monitor and diagnose latency issues across microservices.<h2 class="heading-node" id="zj0fcyerv" style="text-align: justify">Parallelism</h2>Maximize efficiency by designing services to execute operations in parallel, enabling concurrent task execution and minimizing response time.<h2 class="heading-node" id="0nwmmaxj5" style="text-align: justify">Content Compression</h2>Enable content compression (e.g. gzip) to reduce the size of data transmitted over the network.<h2 class="heading-node" id="4kjwkvj2u" style="text-align: justify">CDN for API Responses</h2>Use CDNs to cache and serve API responses closer to end-users, reducing round-trip times for requests.<h2 class="heading-node" id="cbssdv6wa" style="text-align: justify">Response Caching</h2>Implement response caching mechanisms at the API level to serve cached responses for read-heavy operations.<h2 class="heading-node" id="dyv4dfs0l" style="text-align: justify">Prioritize API Endpoints</h2>Prioritize and optimize critical API endpoints to ensure they receive the necessary resources and attention to maintain low latency.<h2 class="heading-node" id="et1ym6s5b" style="text-align: justify">Reduce Chatty APIs</h2>Minimize the number of API calls required to fulfill a client request. Consolidate or batch multiple requests into a single request where possible.<h2 class="heading-node" id="a7mk7hl80" style="text-align: justify">Optimize Code</h2>Continuously optimize your microservices codebase for efficiency and performance to minimize bottlenecks. The following figure demonstrates the ongoing efforts in optimizing the code consistently for efficient data handling.<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/12/Architecture-2-1.webp" alt="M2P Fintech" title="" width="100%" height="253">Effective communication between microservices is a key consideration for system performance. The choice of specific techniques and technologies should align with your application requirements and use case.How do you enable efficient communication in a microservices architecture for streamlined collaboration, heightened performance, and lasting success?Share your experiences from your engineering journey in the comments below.<a class="link fui-Link ___1qmgydl f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq" href="https://m2pfintech.com/newsletter/" target="_blank" rel="noreferrer noopener">Subscribe</a>&nbsp;to our newsletter and get the latest fintech news, views, and insights, directly to your inbox.Follow us on&nbsp;<a class="link fui-Link ___1qmgydl f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq" href="https://www.linkedin.com/company/m2pfintech/mycompany/" target="_blank" rel="noreferrer noopener">LinkedIn</a>&nbsp;and&nbsp;<a class="link fui-Link ___1qmgydl f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq" href="https://twitter.com/m2pfintech" target="_blank" rel="noreferrer noopener">X</a>&nbsp;for insightful fintech bytes curated for curious minds like you.

Strategies for Efficient Component Communication in Microservices Architecture

<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/12/Learning-from-mistakes-banner-2-1.webp" alt="M2P Fintech" title="" id="by9un3ux7" width="100%" height="487">Learning from mistakes is an essential part of engineering practice. Mistakes can lead to significant milestones that transform design, process, and overall outcome. To know how, read this blog. Our Engineering Director, <a class="link" href="https://www.linkedin.com/in/maathavan-tr-vinayak-2ab153a3/" target="_blank" rel="noopener">Maathavan Vinayak</a>, takes you through proven strategies that normalize mistakes and transform them into catalysts for continuous learning and improvement.<h2 class="heading-node" id="ygy40wx68" style="text-align: justify">Create a Culture of Openness</h2>Encourage engineers to report and discuss mistakes without fear of judgment or blame. Foster an environment where team members feel comfortable admitting errors and sharing their learnings.<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/12/Learning-from-mistakes-1.webp" alt="M2P Fintech" title="" width="100%" height="487"><h2 class="heading-node" id="sp600ppnd" style="text-align: justify">Establish Clear Processes</h2>Implement a formal process for investigating mistakes, identifying root causes, and documenting lessons learned. This process should be standardized across teams and projects to ensure consistent learning across the organization.<h2 class="heading-node" id="75e7u8c1w" style="text-align: justify">Analyze Root Cause&nbsp;</h2>Go beyond simply identifying the immediate cause of a mistake and dig deeper to understand the underlying systemic issues that contributed to the error. This may involve reviewing design documents, analyzing process flows, and interviewing stakeholders.<h2 class="heading-node" id="hx5ygua8e" style="text-align: justify">Implement Corrective Actions</h2>Once the root causes have been identified, develop, and implement effective corrective actions to address the underlying issues and prevent similar mistakes from recurring. This may involve design modifications, process improvements, or training initiatives.<h2 class="heading-node" id="7dmutodf7" style="text-align: justify">Communicate Lessons Learned</h2>Share the findings of mistake investigations and the lessons learned with the broader engineering community. This can be done through team meetings, documentation, or dedicated knowledge-sharing platforms.<h2 class="heading-node" id="1zgvbwnkv" style="text-align: justify">Use Insights for Future Improvement</h2>Integrate the insights gained from mistake analysis into future design reviews, process development discussions, and quality assurance procedures. This ensures that lessons learned are embedded in ongoing engineering activities.<h2 class="heading-node" id="a549a2j3k" style="text-align: justify">Document Wisdom</h2>Keep a record of lessons learned from each mistake. Documenting your experiences, along with the insights gained, helps create a reference for future situations. This can be in the form of a personal journal, team retrospective, or project documentation.<h2 class="heading-node" id="fhgcg4qhu" style="text-align: justify">Share Knowledge</h2>Share your experiences with others. Discussing mistakes openly fosters a culture of learning and helps prevent similar errors in the future. It also demonstrates vulnerability and encourages others to share their experiences.<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/12/Learning-from-mistakes-2.webp" alt="M2P Fintech" title="" width="100%" height="487"><h2 class="heading-node" id="id7m285wl" style="text-align: justify">Be Proactive to Prevent Mistakes</h2>Employ tools and methodologies such as Failure Modes and Effects Analysis (FMEA), hazard analysis, and risk management techniques to proactively identify and address potential mistakes before they occur.<h2 class="heading-node" id="0vibwyykk" style="text-align: justify">Foster Learning&nbsp;</h2>Encourage a growth mindset among engineers, emphasizing the value of learning from mistakes as an opportunity for improvement and innovation. Recognize and reward individuals who contribute to mistake prevention and learning initiatives.<h2 class="heading-node" id="0z5206u6a" style="text-align: justify">Take Ownership</h2>Give engineers ownership of their work and encourage them to identify and address potential mistakes proactively. Empower them to suggest improvements and implement corrective actions within their scope of responsibility.<h2 class="heading-node" id="8w1pk8sfh" style="text-align: justify">Improve Continuously&nbsp;</h2>Regularly evaluate and refine the processes for identifying, analyzing, and learning from mistakes. This will ensure that the learning process is effective and adaptive to the evolving needs of the engineering function. By incorporating these strategies, engineering teams can transform mistakes into milestones and pave the way for a culture centered around learning and continuous improvement. The proactive approach not only reduces errors but also elevates design quality and creates superior outcomes for projects and products. Now, it's your turn to share. What's your most valuable lesson learned from a mistake in your engineering journey? Share your thoughts and experiences in the comments below. <a class="link fui-Link ___1qmgydl f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq" href="https://m2pfintech.com/newsletter/" target="_blank" rel="noreferrer noopener">Subscribe</a>&nbsp;to our newsletter and get the latest fintech news, views, and insights, directly to your inbox. Follow us on&nbsp;<a class="link fui-Link ___1qmgydl f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq" href="https://www.linkedin.com/company/m2pfintech/mycompany/" target="_blank" rel="noreferrer noopener">LinkedIn</a>&nbsp;and&nbsp;<a class="link fui-Link ___1qmgydl f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq" href="https://twitter.com/m2pfintech" target="_blank" rel="noreferrer noopener">X</a>&nbsp;for insightful fintech bytes curated for curious minds like you.

How can Engineers Turn Mistakes into Wins?

Journey of Webhooks from Basics to Tech Depths

<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Banner-1.webp" alt="M2P Fintech" title="" width="100%" height="487">In the world of iOS app development, the ability to dynamically generate PDF documents from HTML content is a game changer. Imagine the possibilities of effortlessly transforming dynamic data in the form of interactive reports, professional invoices, or document generation workflows into stunning PDFs. &nbsp; In this blog, our Software Development Engineer, <a class="link" href="https://www.linkedin.com/in/balaji-pandian-905b13a4/">Balaji Pandian</a> will give you step-by-step instructions on how to generate a PDF file from HTML in an iOS app using Swift.&nbsp; To begin with, you must have Xcode installed on your machine, as it serves as the development environment for iOS apps.&nbsp;&nbsp; Let’s get started.&nbsp;<h2 class="heading-node" id="hme28mddg">Step 1: Project Set up&nbsp;</h2><ul class="list-node" id="zg7jdvkxs"><li>Open the Xcode and create a new iOS project.</li><li>Select the "Single View App" template and give your project a suitable name.</li><li>Choose Swift as the programming language and configure the desired options for other project settings.&nbsp;</li><li>&nbsp;After the project is created, navigate to the ViewController.swift file.&nbsp;</li></ul><h2 class="heading-node" id="4yc0san15">Step 2: Import Frameworks&nbsp;&nbsp;</h2>To generate PDF from HTML, we need to import the necessary frameworks. Add the following import statements at the top of ViewController.swift file:<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Screenshot-2023-07-18-at-11.38.22-AM.webp" alt="M2P Fintech" title="" width="100%" height="137"><h2 class="heading-node" id="y1ph15tmb">Step 3: WebView Setup&nbsp;</h2><ul class="list-node" id="v84kzmck1"><li>Create a new class, ViewController, that inherits from UIViewController and adopts the WKNavigationDelegate protocol. This class will handle the generation of the PDF file.</li><li>Inside the ViewController class, override the viewDidLoad() method and perform the following steps:&nbsp;</li></ul><ul class="list-node" id="ztndi0sl0"><li>Create an instance of WKWebView.&nbsp;<ul class="list-node" id="2z01nr0l1"><li>Set the navigationDelegate of the web view to self.&nbsp;</li></ul></li></ul><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-41.webp" alt="M2P Fintech" title="" width="100%" height="140"><ul class="list-node" id="chyj4so0r"><li>Drag the Sample Invoice HTML file into the project.</li></ul><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-42.webp" alt="M2P Fintech" title="" width="100%" height="550">Initiate the HTML file (Invoice.html) from the bundle and load the WebView request.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Screenshot-2023-07-18-at-11.38.59-AM.webp" alt="M2P Fintech" title="" width="100%" height="142"><h2 class="heading-node" id="y5peyrzg1">Step 4: Generating PDF</h2><ul class="list-node" id="9ty9k7cs1"><li>Implement the webView(:didFinish:) method from the WKNavigationDelegate protocol. This method will be called when the web view finishes loading the JSON string to HTML file content.&nbsp;</li><li>In Swift, the evaluateJavaScript method is used to execute JavaScript code within a WKWebView or WKWebViewConfiguration object. It allows you to interact with the web content loaded in the webView and manipulate it using JavaScript.&nbsp;<ul class="list-node" id="c7580oopd"><li>Pass the webView instance to generatePDF (formatter: UIViewPrintFormatter() method.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Screenshot-2023-07-18-at-11.39.34-AM.webp" alt="M2P Fintech" title="" width="100%" height="637"></li><li>Mapping the JSON string to HTML key value&nbsp;&nbsp;</li></ul></li></ul><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-39-1.webp" alt="M2P Fintech" title="" width="100%" height="930"><ul class="list-node" id="p5u3a95y2"><li>Implement the generatePDF method that takes a WKWebView instance and a handler.&nbsp;<ul class="list-node" id="a4ggsobqv"><li>Create an instance of UIPrintPageRenderer&nbsp;</li><li>Add the web view's viewPrintFormatter() to the print page renderer&nbsp;</li><li>Set the paper size and printable area of the PDF&nbsp;</li><li>Create an instance of NSMutableData to store the PDF data&nbsp;</li><li>Initiate the PDF context using UIGraphicsBeginPDFContextToData().&nbsp;</li><li>Iterate over the print page renderer's number of pages and draw each page using UIGraphicsBeginPDFPage() and printPageRenderer.drawPage(at:in:).&nbsp;</li><li>End the PDF context using UIGraphicsEndPDFContext().&nbsp;</li><li>Pass the generated PDF data.&nbsp;</li></ul></li></ul><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Screenshot-2023-07-18-at-11.37.56-AM.webp" alt="M2P Fintech" title="" width="100%" height="677"><ul class="list-node" id="lo9g3z837"><li>Implement the savePDFToDisk(pdfData:) method to save the generated PDF data to the device's document directory.&nbsp;<ul class="list-node" id="525ws2f7l"><li>Check if the PDF data is not NIL&nbsp;</li><li>Get the document directory path using NSSearchPathForDirectoriesInDomains().&nbsp;</li><li>Construct the file path for the PDF&nbsp;&nbsp;</li><li>Use pdfData.write(to:) to save the PDF data to the file&nbsp;</li><li>Handle if any errors occur during the file-saving process&nbsp;</li></ul></li></ul><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Screenshot-2023-07-18-at-11.40.10-AM.webp" alt="M2P Fintech" title="" width="100%" height="504">To achieve a PDF preview with full view in Swift UI, you can utilize the PDFView class provided by Apple's PDFKit framework.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-38.webp" alt="M2P Fintech" title="" width="100%" height="296">The below figure shows the final output of the conversion of PDF file from HTML format<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/invoice-1.webp" alt="M2P Fintech" title="" width="100%" height="487">By leveraging the WebKit framework, we have successfully achieved the rendering of HTML content within a WKWebView, subsequently converting it into a PDF document.&nbsp; It is important to note that handling error cases and tailoring the code to meet your specific requirements is essential.&nbsp;&nbsp; There are further possibilities to explore and enhance the PDF generation process by:&nbsp;<ul class="list-node" id="5vxn85mom"><li>Empowering users to dynamically customize the HTML content&nbsp;</li><li>Elevating the PDF layout with print page renderer modifications&nbsp;&nbsp;</li><li>Implementing pagination and header/footer support&nbsp;</li></ul>You can also explore and combine various techniques to create unique and compelling PDFs tailored to your specific requirements on the fly. So, dive in, experiment, and explore.&nbsp; Happy coding!&nbsp; Want to know more, reach out to us at <a class="link" href="mailto:business@m2pfintech.com">business@m2pfintech.com.</a>&nbsp;&nbsp; Our team of experts is eager to connect with you.&nbsp; <a class="link" href="https://m2pfintech.com/newsletter/">Subscribe</a>&nbsp;to our newsletter and get the latest fintech news, views, and insights, directly to your inbox. Follow us on&nbsp;<a class="link" href="https://www.linkedin.com/company/m2pfintech/mycompany/">LinkedIn</a>&nbsp;and&nbsp;<a class="link" href="https://twitter.com/m2pfintech">Twitter</a> for insightful fintech bytes curated for curious minds like you.

How to Generate PDFs from HTML in iOS using Swift UIKit

<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Blog-01-4.webp" alt="M2P Fintech" title="" width="100%" height="531">We live in a world of <a class="link" href="https://m2pfintech.com/blog/super-apps-in-consumer-banking-what-role-does-open-banking-play/">super apps</a>, where data protection must be prioritized above everything. Safeguarding mobile app information from unauthorized access is imperative to prevent cyber-attacks.&nbsp;<h2 class="heading-node" id="iptpr69rj" style="text-align: justify">AES and ECDH&nbsp;</h2>To address security challenges, advanced encryption and decryption mechanisms must be integrated into the Android applications. By implementing robust encryption algorithms such as AES (Advanced Encryption Standard), and incorporating secure key exchange protocols like the Elliptic Curve Diffie-Hellman (ECDH) algorithm, developers can fortify their apps against potential breaches. &nbsp;The ECDH algorithm ensures sensitive data is protected from unauthorized access, enhancing the overall security of applications. This advanced process creates a trusted and secure environment for seamless data transmission. &nbsp;In this blog, our Code Specialist and Lead Software Development Engineer <a class="link" href="https://www.linkedin.com/in/janarthanan-radhakrishnan-b6933b118">Janarthanan</a>, will guide you through the intricate world of encryption and decryption logic using AES. With his expertise, you can understand how this cutting-edge technology seamlessly integrates into the Android app, providing a robust shield for sensitive data with utmost ease and efficiency.&nbsp;To start off, let’s understand cryptographic algorithms. &nbsp;<h2 class="heading-node" id="wb39lawnc" style="text-align: justify">What is a Cryptographic Algorithm?&nbsp;</h2>Cryptographic algorithms (also known as encryption algorithms) are mathematical formulas that define how the encryption and decryption processes are carried out. They define specific steps and operations involved in transforming the data and play a crucial role in the security of encryption systems. The figure below depicts the processes of encryption and decryption, which work together to ensure the confidentiality and integrity of data. &nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Blog-02-1.webp" alt="M2P Fintech" title="" width="100%" height="531">Cryptographic algorithms significantly impact the level of security, performance, and compatibility of the encryption and decryption processes. Now, let's explore AES algorithms, our superhero of data security.<h2 class="heading-node" id="foloj6te0" style="text-align: justify">Advanced Encryption Standard (AES)&nbsp;</h2>AES acts as a powerful shield that ensures personal data remains confidential and protected. It is commonly used to secure sensitive data such as credit card numbers, passwords, and personal data. It is also used in different applications, including SSL/TLS encryption for web traffic, disk encryption, and email encryption.Let’s explore the different modes of AES.&nbsp;<h3 class="heading-node" id="bkmq1255i" style="text-align: justify">Modes of AES&nbsp;</h3>When it comes to securing data with Advanced Encryption Standard, different modes can be used. Each mode offers unique characteristics and serves specific purposes in securing sensitive data. &nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/Blog-03-1.webp" alt="M2P Fintech" title="" width="100%" height="531">Let’s briefly look at each of the modes before into AES implementation.&nbsp;<h4 class="heading-node" id="f2ir19hck" style="text-align: justify">Electronic Code Book (ECB)&nbsp;</h4>Electronic Code Book (ECB) mode independently encrypts fixed-size blocks of plaintext using the same key, which can lead to vulnerabilities. It is not suitable for encrypting large amounts of data or high-security scenarios. Therefore, it is generally not recommended for most encryption purposes.&nbsp;<h4 class="heading-node" id="t63ath78e" style="text-align: justify">Cipher Block Chaining (CBC)&nbsp;</h4>Cipher Block Chaining (CBC) mode enhances security by incorporating an Initialization Vector (IV). The IV is the same size as the encrypted block and adds an element of randomness to the encryption process. To ensure cryptographic security, each encryption of the same plaintext should produce a different ciphertext.&nbsp;<h4 class="heading-node" id="nh0hghn4a" style="text-align: justify">Cipher Feedback (CFB)&nbsp;</h4>The Cipher Feedback (CFB) mode of operation can use a block encryptor as a stream cipher. Like other modes, it requires an initialization vector (IV). In CFB mode, the IV is first encrypted and then XORed with the plaintext block to generate the corresponding ciphertext. This process is repeated for each subsequent block, where the previous encryption result is encrypted and XORed with the next plaintext block.&nbsp;<h4 class="heading-node" id="fx050wp5g" style="text-align: justify">Output Feedback (OFB)&nbsp;</h4>The Output Feedback (OFB) mode of operation allows a block encryptor to function as a stream encryptor without requiring any padding data. In OFB mode, the initialization vector (IV) is encrypted initially, and the resulting encryption is then used to XOR with the plaintext to generate the corresponding ciphertext. This process is repeated for each subsequent block, where the previous encryption results are continuously encrypted and XORed with the next plaintext block. Additionally, the encryption and decryption of the IV cannot be performed in parallel in this mode.&nbsp;<h4 class="heading-node" id="mz2y4f5r9" style="text-align: justify">Counter (CTR)&nbsp;</h4>The Counter (CTR) mode of operation uses a counter as the input block for the encryptor. The counter is of the same size as the block being used. In CTR mode, the encryptor generates a keystream by encrypting the counter value using the encryption key. This keystream is then XORed with the corresponding plaintext block to produce the ciphertext. Importantly, each encryption block in CTR mode utilizes the same encryption key, ensuring consistency throughout the encryption process.&nbsp;<h4 class="heading-node" id="xlyf8ecqs" style="text-align: justify">Galois Counter Mode (GCM)</h4>The Galois Counter Mode (GCM) is a powerful encryption mode that combines the Counter (CTR) mode with authentication mechanisms. It offers enhanced speed and security thanks to its efficient implementation of table-driven field operations. GCM is primarily used for authenticated encryption, providing confidentiality and authenticity for the encrypted data. It also ensures authenticity for the additional authenticated data (AAD) associated with the encrypted data. It's important to note that the AAD is not encrypted but still benefits from the authentication mechanisms provided by GCM.&nbsp;When it comes to client-server communication, it is essential to prioritize security. Hackers can easily exploit simple requests during transmission. Let us now look at code implementation in GCM.&nbsp;<h3 class="heading-node" id="wphhfliz1" style="text-align: justify">Code Implementation Steps in GCM&nbsp; &nbsp;&nbsp;</h3>When implementing the code, the first step is to Open Android Studio. Once we have Android Studio up and running, the next step is to set up the Gradle build system.&nbsp;&nbsp;<h4 class="heading-node" id="452izau5l" style="text-align: justify">Gradle Setup&nbsp;</h4>Gradle is an essential component that helps manage dependencies and build configurations for our Android app.&nbsp;In the Gradle first, the Spongy Castle dependency file is added in the build. Gradle. &nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-30.webp" alt="M2P Fintech" title="" width="100%" height="194">Let’s see the steps involved!&nbsp;&nbsp;<h4 class="heading-node" id="7780raqib" style="text-align: justify">Step 1: Generate Key Pair&nbsp;</h4>The first step is to generate the Key Pair.&nbsp;&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-36.webp" alt="M2P Fintech" title="" width="100%" height="276"><h4 class="heading-node" id="7rg6q5jxl" style="text-align: justify">Step 2: Generate Private Key&nbsp;</h4>The private key in cryptography is called symmetrical because it involves a single secret key for encryption and decryption. Compared to public-key cryptography, which involves two separate keys (public and private), the symmetrical approach offers faster encryption and decryption processes. To ensure secure communication, both the sender and receiver must possess and use the same private key, making it a crucial component in algorithms like AES 128, AES 192, and AES 256, which enhance the overall robustness of data encryption and decryption. &nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-37.webp" alt="M2P Fintech" title="" width="100%" height="164"><h4 class="heading-node" id="qx6vhhl7v" style="text-align: justify">Step 3: Generate Public Key&nbsp;</h4>The public key in cryptography operates on an asymmetrical principle as it involves two distinct keys: private and public keys. Unlike the private key, the public key is used for encryption, while the private key is used for decryption. Due to its inherent nature, public key cryptography tends to be slower than symmetrical private key cryptography. Algorithms like RSA, DSA, and others use the public key for secure encryption processes, ensuring the confidentiality and integrity of data.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-32.webp" alt="M2P Fintech" title="" width="100%" height="130"><h4 class="heading-node" id="85zwautk9" style="text-align: justify">Step 4: Need Exchange Server Public Key&nbsp;</h4>To establish secure communication with a web service, it is essential to transmit our public key. Once the web service validates the received public key, it will respond by providing its own public key. This server public key is crucial in generating a secret key for further cryptographic operations. &nbsp;<h4 class="heading-node" id="26qgwpzzk" style="text-align: justify">Step 5: Generate Secret Key before Data Encryption&nbsp;&nbsp;</h4>In secret key encryption, the key used for encryption and decryption remains the same. As a result, ensuring the proper safeguarding and distribution of this key becomes crucial.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-33.webp" alt="M2P Fintech" title="" width="100%" height="287"><h4 class="heading-node" id="n2pai8z03" style="text-align: justify">Step 6:&nbsp; Encrypt the Data&nbsp; </h4>Encryption is a crucial process in data security, transforming a normal message (plaintext) into a meaningless form (ciphertext). Its primary objective is to convert plain text into a complex and unreadable format, ensuring that the original message becomes inaccessible to anyone without the decryption key. The output of encryption is a ciphertext, which appears as a series of scrambled characters to unauthorized individuals.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-34.webp" alt="M2P Fintech" title="" width="100%" height="403"><h4 class="heading-node" id="kcla3xod4" style="text-align: justify">Step 7:&nbsp; Decrypt the Data&nbsp;</h4>Decryption plays a vital role in data security by reversing the encryption process and converting a meaningless message (ciphertext) back into its original form (plaintext). Its primary objective is to convert the cipher text into plain text. Decryption reverses the encryption process and converts the ciphertext back into plaintext.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/07/MicrosoftTeams-image-35.webp" alt="M2P Fintech" title="" width="100%" height="382">The integration of encryption and decryption logic using AES in Android apps has ushered in a new era of data security and confidentiality. By leveraging the power of this advanced cryptographic algorithm, developers can ensure that sensitive information remains protected and inaccessible to unauthorized entities.&nbsp;Want to know more about enhancing Android app security?&nbsp;Reach out to us at <a class="link" href="mailto:business@m2pfintech.com">business@m2pfintech.com.</a>&nbsp;<a class="link fui-Link ___1idfs5o f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq f17ae5zn" href="https://m2pfintech.com/newsletter/" target="_blank" rel="noreferrer noopener">Subscribe</a>&nbsp;to our newsletter and get the latest fintech news, views, and insights, directly to your inbox.Follow us on&nbsp;<a class="link fui-Link ___1idfs5o f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq f17ae5zn" href="https://www.linkedin.com/company/m2pfintech/mycompany/" target="_blank" rel="noreferrer noopener">LinkedIn</a>&nbsp;and&nbsp;<a class="link fui-Link ___1idfs5o f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq f17ae5zn" href="https://twitter.com/m2pfintech" target="_blank" rel="noreferrer noopener">Twitter</a> for insightful fintech bytes curated for curious minds like you.

How to Secure an Android App with AES

<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/Android-SDK-Integration-Blog-Banner-Design-01-2.webp" alt="M2P Fintech" title="" id="8wwgsm7pp" width="100%" height="358">Flutter combines the best features from native and hybrid application development approaches.&nbsp; Instead of developing separate apps for platforms such as Android, iOS, Windows, and Linux, Flutter allows developers to build once and deploy across multiple platforms.&nbsp; But how can developers tap into native platform features and integrate robust SDKs?&nbsp; Enter the Method Channel Method Channel acts as a powerful communication mechanism between Flutter and the native platform, opening a world of possibilities for an app. By leveraging the Method Channel, a developer can seamlessly integrate iOS and Android SDKs into their Flutter project, unlocking new functionalities and expanding their app's potential.&nbsp; In this blog, our developer <a class="link" href="https://www.linkedin.com/in/alwin-s-699a47145/">Alwinraj Sahayaraj </a>delves into the exciting world of SDK integration in Flutter using Method Channels. He will guide you through the process of integrating SDKs, accessing native functionalities, and creating a seamless bridge between Flutter and the native platform.&nbsp; Let's start with what an SDK is.&nbsp;<h2 class="heading-node" id="q0pkxgv2y" style="text-align: justify">What is SDK?&nbsp;</h2>Software Development Kit (SDK) or devkit is a set of software tools and programs that developers use to create applications for specific platforms.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/Android-SDK-Integration-Blog-Banner-Design-05.webp" alt="M2P Fintech" title="" width="100%" height="348">SDK is like a magical toolbox that comprises everything a developer needs to bring their app ideas to life on a particular platform. This toolbox includes libraries, documentation, code samples, processes, and guides that developers can use and integrate into their own apps.&nbsp;&nbsp; SDKs are created to be used for particular platforms or programming languages.&nbsp; When developing an Android application, you would require an Android SDK toolkit, while an iOS SDK would be necessary for building an iOS app. &nbsp; Similarly, a VMware SDK would be essential if you intend to integrate with the VMware platform. Likewise, a Nordic SDK would be the appropriate choice for developing bluetooth or wireless products. The specificity of SDKs ensures developers have the tools tailored to their intended platform or technology.&nbsp; Now, let’s see how SDK is integrated into Flutter.&nbsp;&nbsp;<h2 class="heading-node" id="3jyfvdfuq" style="text-align: justify">SDK Integration into Flutter&nbsp;</h2>SDK integration in Flutter involves integrating external development kits into your Flutter project. These SDKs are pre-built libraries or tools offering additional features or services not native to the Flutter framework. &nbsp; They are developed in different programming languages like Dart, Swift, Objective-C, Java, or Kotlin. Incorporating these SDKs into your Flutter project allows you to access extended functionality and leverage existing libraries and tools to enhance your app development process.&nbsp; SDK integration enables you to create a feature-rich, dynamic, and user-friendly app. Built on multiple programming languages, they are compatible with different platforms.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/Android-SDK-Integration-Blog-Banner-Design-04-1.webp" alt="M2P Fintech" title="" width="100%" height="358">SDK integration in Flutter enables developers to leverage native platform features, tap into third-party services, and extend the capabilities of their applications. It empowers developers to improve user experience and accelerate the development process by leveraging the power of tailored SDKs.&nbsp; Some everyday use cases of SDK integration in Flutter include the following.&nbsp;<h3 class="heading-node" id="1rl0ilk7q" style="text-align: justify">Native Functionality Interaction&nbsp;</h3>Flutter offers a robust platform channel mechanism that facilitates seamless communication between Flutter and the native iOS or Android platform. By integrating SDKs, developers can interact with device-specific functionalities like the camera, GPS, sensors, Bluetooth, and other native APIs.&nbsp;<h3 class="heading-node" id="gvkzzp708" style="text-align: justify">Third-Party Service Access&nbsp;</h3>Numerous SDKs provide consistent integrations with widely used third-party services, including analytic platforms, push notification services, authentication providers, payment gateways, and social media networks. By integrating these SDKs into your Flutter app, you can effortlessly incorporate these essential services, enabling features such as user analytics, real-time notifications, secure authentication, streamlined payments, and seamless social media integration.&nbsp;<h3 class="heading-node" id="dbnbidppe" style="text-align: justify">Readymade UI Components&nbsp;&nbsp;</h3>Specific SDKs offer ready-made UI components that can be integrated into your Flutter app, saving valuable time and effort. These pre-built components enable you to swiftly achieve desired designs or functionalities without creating them from scratch. By leveraging these UI components, you can expedite the development process, enhance the visual appeal of your app, and ensure consistency across different screens and interactions.&nbsp;<h3 class="heading-node" id="diq0c199q" style="text-align: justify">Optimize Performance&nbsp;&nbsp;</h3>SDK integration geared towards performance optimization can significantly boost the overall performance, reduce network usage or improve the overall rendering efficiency of your app. You can optimize various aspects of your app's functionality by integrating performance-focused SDKs, such as image processing libraries, networking libraries, or caching mechanisms.&nbsp;<h3 class="heading-node" id="wywpa3xti" style="text-align: justify">Monetization Opportunities&nbsp;&nbsp;</h3>SDK integration with advertising networks or in-app monetization platforms offers a seamless solution to incorporate various monetization strategies into your app. By integrating these SDKs, you can display targeted ads, track important metrics such as ad impressions and revenue, and implement in-app purchases and subscriptions seamlessly.&nbsp; One of the most effective ways to achieve seamless SDK integration in Flutter is using Method Channels. &nbsp;<h2 class="heading-node" id="cesqxp4wy" style="text-align: justify">What is Method Channel &amp; how it is used in SDK integration?&nbsp;</h2>The Method Channel is like a virtual bridge that connects your Flutter app with the native platform, whether it's Android or iOS.&nbsp;&nbsp; Using the Method Channel, you can invoke platform-specific code from your Flutter app and receive the corresponding results. This bidirectional communication mechanism facilitates data exchange and functionality between Flutter and the native platform.&nbsp; &nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/Android-SDK-Integration-Blog-Banner-Design-06.webp" alt="M2P Fintech" title="" width="100%" height="360">Within the Flutter/services package, you'll find the Method Channel class, crucial in establishing a communication channel between your Flutter app and the native platform. This channel facilitates the invocation of methods and the handling of results, enabling seamless interaction between Flutter and the underlying native platform.&nbsp; Let's see how the code is integrated into Flutter. To integrate SDKs using Method Channels in Flutter, there are a few steps to be followed on both the Flutter side and the native (Android and iOS) platform side.&nbsp;&nbsp; First, let’s see the flutter side.&nbsp;<h2 class="heading-node" id="iah66oac6" style="text-align: justify">Flutter&nbsp;</h2>To use the Method Channel in Flutter for SDK integration, here is the fundamental structure for creating and invoking a Method Channel in Flutter and iOS.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-15.webp" alt="M2P Fintech" title="" width="100%" height="508"><h2 class="heading-node" id="v9wvbfq7n" style="text-align: justify">Native (Android + iOS)</h2>On the native side (iOS), specifically inside the AppDelegate file, you would typically implement the Method Channel functionality. This is where you handle method invocations from the Flutter app and establish communication between Flutter and the iOS platform.&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-18.webp" alt="M2P Fintech" title="" width="100%" height="1422">The following is the basic structure for creating and invoking a Method Channel in Flutter and iOS:&nbsp;<h2 class="heading-node" id="oo9beyl71" style="text-align: justify">Android&nbsp;</h2>On the Android native side (MainActivity.kt), you can set up the Method Channel.<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-20.webp" alt="M2P Fintech" title="" width="100%" height="84">To integrate the SDK on the Android side, you need to perform the following steps:&nbsp; Step 1: Add the AAR file to your project: Navigate to the project directory: Project → android → app → lib (create the "lib" directory if it doesn't exist).&nbsp; Place the AAR file inside the "lib" directory&nbsp; Step 2: Modify the build.gradle file (app level):&nbsp; Open the build.gradle file located at: Project → android → app → build.gradle.&nbsp; Step 3:&nbsp; And need to add the required dependencies for SDK integration (mentioned in the SDK documents)&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-16.webp" alt="M2P Fintech" title="" width="100%" height="731">You will need to do the following to incorporate this functionality into your Flutter app.&nbsp; Step 1: Review the SDK Integration Document provided by the SDK developer before proceeding with the implementation. This document contains essential information and instructions on how to integrate the SDK into your application effectively.&nbsp; Step 2: If the SDK Integration Document specifies any required API calls and data retrieval, it is essential to follow those instructions. These API calls will enable you to fetch the necessary data to be passed as arguments to the SDK integration scenario.&nbsp; Step 3: To pass values from Flutter to iOS after retrieving them via an API call, you need to write an API call function in Flutter. This function will make the necessary HTTP requests and fetch the required data. Once the data is obtained, you can pass it as arguments to the SDK integration in Flutter. These arguments will be subsequently sent from Flutter to the iOS platform.&nbsp; By following these steps and carefully reviewing the SDK Integration Document, you can successfully incorporate the required API calls and data retrieval processes into your Flutter app, ensuring smooth integration with the SDK.&nbsp; So, whether you're a seasoned developer or just starting your Flutter journey, don't hesitate to explore the vast world of SDKs and the Method Channel.&nbsp;&nbsp; Happy Coding and Integrating&nbsp; Do you have any questions or suggestions?&nbsp; Write to us at <a class="link" href="mailto:business@m2pfintech.com">business@m2pfintech.com</a>. Our expert team will be happy to assist you.&nbsp; <a class="link fui-Link ___1idfs5o f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq f17ae5zn" href="https://m2pfintech.com/newsletter/" target="_blank" rel="noreferrer noopener">Subscribe</a>&nbsp;to our newsletter and get the latest fintech news, views, and insights, directly to your inbox. Follow us on&nbsp;<a class="link fui-Link ___1idfs5o f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq f17ae5zn" href="https://www.linkedin.com/company/m2pfintech/mycompany/" target="_blank" rel="noreferrer noopener">LinkedIn</a>&nbsp;and&nbsp;<a class="link fui-Link ___1idfs5o f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq f17ae5zn" href="https://twitter.com/m2pfintech" target="_blank" rel="noreferrer noopener">Twitter</a> for insightful fintech bytes curated for curious minds like you.

Power up Flutter with SDK Integration using Method Channel

<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-19.webp" alt="M2P Fintech" title="" width="100%" height="358">Aadhaar data needs to be treated securely. According to the RBI and Government of India mandate, organizations that collect and store identity details must mask the first 8 digits of the Aadhaar number and reveal only the last 4 for security and compliance. Whether it's for government subsidies, income tax filing, or opening bank accounts, Aadhaar numbers must be validated and masked.&nbsp; <a class="link" href="https://m2pfintech.com/blog/edo-suite-mask-aadhaar-in-an-instant-the-right-way/">Aadhaar masking tools</a>&nbsp;use Verhoeff algorithm, a checksum algorithm to validate, detect errors and ensure the integrity of the masked Aadhaar number. At M2P, we implemented Verhoeff algorithm on <a class="link" href="https://m2pfintech.com/blog/the-implications-of-flutter-in-fintech/">Flutter.</a> Wonder how?&nbsp;&nbsp; Our engineer, <a class="link" href="https://www.linkedin.com/in/nandhakumar-k-14828813a/">Nandhakumar Krishnan,</a> delves deep into the step-by-step implementation of the Verhoeff algorithm in Flutter, which guarantees the authenticity of these crucial identification numbers. &nbsp;&nbsp; Before we embark on the journey, it's important to understand the relationship between Aadhaar numbers and Verhoeff algorithm.&nbsp;<h2 class="heading-node" id="vuzgmdwit" style="text-align: justify">Aadhaar Number and Verhoeff Algorithm</h2>Aadhaar numbers are generated by the Unique Identification Authority of India (UIDAI) and are linked to an individual's biometric and demographic information, including fingerprints, iris scans, and photographs.&nbsp;The Aadhaar number comprises 12 digits, out of which 11 digits are uniquely generated, and the last digit is the checksum.&nbsp;&nbsp; The checksum is derived from the Verhoeff algorithm using a series of mathematical calculations. The result of these calculations is used to determine the appropriate checksum digit. By appending the checksum digit to the 11-digit portion of the Aadhaar number, the Verhoeff algorithm enables easy detection of errors or discrepancies that occurs during data entry or transmission. If any of the digits are altered, the resulting Aadhaar number will fail the checksum validation.&nbsp;<h2 class="heading-node" id="ba2ymaxxe" style="text-align: justify">How to Implement the Verhoeff Algorithm?</h2>To begin implementing check digit algorithms, it is necessary to create an abstract class as a foundation for the process. This abstract class will serve as a basis for incorporating the Verhoeff algorithm and its functionality within the code.&nbsp;<h3 class="heading-node" id="ofatx47uq" style="text-align: justify">The abstract class&nbsp;&nbsp;</h3><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-15-1.webp" alt="M2P Fintech" title="" width="100%" height="329"><ul class="list-node" id="vybjsesus"><li>In order to proceed, it is important to consider the multiplication table, permutation table, and the inverse table.&nbsp;</li><li>This table is based on multiplication in the dihedral group D5 and is simply the Cayley table of the group.&nbsp;</li></ul>Note: This group is not commutative, i.e., for some values of j and k, d(j,k) != d(k, j).&nbsp;<h3 class="heading-node" id="34hzoigau" style="text-align: justify">The multiplication table&nbsp;</h3><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-16-1.webp" alt="M2P Fintech" title="" width="100%" height="329"><ul class="list-node" id="vjitqhkix"><li>In the inverse table, ‘inv’ represents the multiplicative inverse of a digit, i.e., the value that satisfies d(j, inv(j)) = 0.&nbsp;</li></ul><h3 class="heading-node" id="hou5ebcnk" style="text-align: justify">The inverse table</h3><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-17-1.webp" alt="M2P Fintech" title="" width="100%" height="91"><ul class="list-node" id="oyyt75fzn"><li>In the permutation table, p applies a permutation to each digit based on its position in the number.&nbsp;</li><li>p(pos,num)&nbsp;</li><li>This is a single permutation (1 5 8 9 4 2 7 0)(3 6) applied iteratively; i.e., p(i+j,n) = p(i, p(j,n)).&nbsp;</li></ul><h3 class="heading-node" id="avp8mfh7v" style="text-align: justify">The permutation table&nbsp;</h3><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-18-1.webp" alt="M2P Fintech" title="" width="100%" height="284">Next, we must compute the Verhoeff checksum formula.&nbsp;<h3 class="heading-node" id="tl7qvwiot" style="text-align: justify">Generating the checksum formula</h3><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-19-2.webp" alt="M2P Fintech" title="" width="100%" height="616"><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-27.webp" alt="M2P Fintech" title="" width="100%" height="556"> &nbsp; The above snippet generates a checksum for the given Aadhaar number. The validate function then verifies that the checksum matches the last digit of the Aadhaar number. If they are the same, then the Aadhaar number is considered valid.&nbsp;<h2 class="heading-node" id="kgk26r6mb" style="text-align: justify">Implementing the Verhoeff Algorithm in Flutter&nbsp;</h2>To implement the Verhoeff algorithm in your Flutter application, follow these steps:&nbsp; Step 1: Import the Verhoeff algorithm class&nbsp;<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-28.webp" alt="M2P Fintech" title="" width="100%" height="162">Step 2: Validate and check the digit of the user provided Aadhaar number Note: Ensure that the user inputs a number without any spaces or characters.&nbsp; The Verhoeff algorithm computes the checksum and validates the input Aadhaar number.&nbsp;&nbsp; If the computed checksum matches the last digit of the Aadhaar number, it means that the number is validated.&nbsp;<h2 class="heading-node" id="vill8wfzc" style="text-align: justify">Indispensable Layer of Security&nbsp;</h2>The Verhoeff algorithm prevents manual errors and ensures the integrity of Aadhaar numbers. This implementation adds an extra layer of protection and reliability when handling Aadhaar numbers, contributing to the overall authenticity of this vital identification system.&nbsp; The use case of the algorithm is not limited to Aadhaar numbers alone. It can be used to validate credit card numbers, phone numbers, and product codes, making it an essential tool in today's data-driven world.&nbsp; Want to know about Aadhaar validation and masking?&nbsp;&nbsp; Get in touch with us at <a class="link" href="mailto:business@m2pfintech.com">business@m2pfintech.com</a>&nbsp; <a class="link fui-Link ___1qmgydl f3rmtva f1ewtqcl fyind8e f1k6fduh f1w7gpdv fk6fouc fjoy568 figsok6 f1hu3pq6 f11qmguv f19f4twv f1tyq0we f1g0x7ka fhxju0i f1qch9an f1cnd47f fqv5qza f1vmzxwi f1o700av f13mvf36 f1cmlufx f9n3di6 f1ids18y f1tx3yz7 f1deo86v f1eh06m1 f1iescvh ftqa4ok f2hkw1w fhgqx19 f1olyrje f1p93eir f1h8hb77 f1x7u7e9 f10aw75t fsle3fq" href="https://m2pfintech.com/newsletter/" target="_blank" rel="noreferrer noopener">Subscribe</a>&nbsp;to our newsletter and get the latest fintech news, views, and insights, directly to your inbox. 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Validate Aadhaar numbers using the Verhoeff Algorithm in Flutter

<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/CI-CD-Banner-1.webp" alt="M2P Fintech" title="" width="100%" height="253">Fixing a critical bug in your code can save the integrity of your project.&nbsp;&nbsp;What is equally important is continuously improving the quality of the code, testing, and automating it for new release. Developers must make sure they follow all these processes while seamlessly communicating the changes with their team members.&nbsp;&nbsp;That’s why development teams across the world practice a mechanism called Continuous Integration (CI) and Continuous Delivery (CD).&nbsp;Starting from generating a build using command line, uploading build to test flight using fast lane, interfacing Jenkins with bitbucket and Fastlane, CICD mechanism can simplify and automate the process of build generation for iOS developers.&nbsp;We are coming up with a 3-part series covering the A-Z of deploying CI/CD mechanism for automating build generation.&nbsp;&nbsp;In this blog, we will be talking about generating a local build using command line.&nbsp;Let’s dive in.&nbsp;This blog is written by <a class="link" href="https://www.linkedin.com/in/ranjith-ravichandran-73829793/">Ranjith Ravichandran</a>, Senior SDE, Product Engineering at M2P.&nbsp;<h2 class="heading-node" id="vixdomkir" style="text-align: justify">What is CI/CD?&nbsp;</h2>Continuous Integration is the practice of merging code changes to a shared repository many times a day. It includes automated building generation and testing. &nbsp;Continuous Delivery is continuous integration with additional processes which allows application release to the customers after each change or update. &nbsp;&nbsp;<h2 class="heading-node" id="gf7yuvxyf" style="text-align: justify">Why CI/CD?&nbsp;</h2>Continuous integration and continuous delivery (CI/CD) is a critical component of agile software development, which emphasizes the importance of delivering working software to users quickly and frequently. This allows stakeholders and users to access newly created features and provide feedback as soon as possible, so features can be iteratively improved.&nbsp;CI/CD is a valuable tool for software developers, regardless of the size of their team. For solo developers, CD may be even more important, as it can help to ensure that software is delivered to users quickly and reliably.&nbsp;In this blog, we will show you the behind the scenes of building, testing, archiving, and uploading an iOS application. Being aware of the native Apple developer tools and learning command line interaction is integral for anyone using CI/CD mechanism.&nbsp;Command line interactions can help you with the following.&nbsp;<ul class="list-node" id="pte7t3cwf"><li>Understanding apple technologies used for building and deploying an iOS application&nbsp;</li><li>Automating iOS development task for continuous integration or cloud-based servers&nbsp;</li><li>Understanding the background working of tools like <a class="link" href="https://fastlane.tools/">Fastlane</a>&nbsp;</li></ul><h2 class="heading-node" id="k829yqqxm" style="text-align: justify">Automating Build Generation – Overall Process</h2><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/CI-CD-img1.webp" alt="M2P Fintech" title="" width="100%" height="253"><ul class="list-node" id="2rh1i4is1"><li>Setting up the project and creating a repository in Bit Bucket&nbsp;</li><li>Connecting local Jenkins with Bit Bucket cloud to check out as project branch (to build as an IPA)&nbsp;</li><li>Connecting Jenkins and Fastlane for building and archiving the project</li><li>Moving the archived IPA to TestFlight from Fastlane</li></ul><h2 class="heading-node" id="718gbf2sl" style="text-align: justify">Build Generation using Command Line</h2><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/CI-CD-img2.webp" alt="M2P Fintech" title="" width="100%" height="261">Let’s assume that a project is developed by multiple engineers where they all must perform the following.&nbsp;<ul class="list-node" id="8xgwyb9oq"><li>Checking out the project from Bit Bucket to local system&nbsp;</li><li>Archiving the particular branch of the project using command line&nbsp;</li></ul>After following the above processes, the IPA is generated inside the project folder.&nbsp; To understand the command line deployment process, we should have the following things set up in advance before starting the build generation. &nbsp;<h2 class="heading-node" id="wl1vjw4rj" style="text-align: justify">Pre-requisites</h2><ul class="list-node" id="zxps2bfin"><li>Sample app with Xcode workspace - e.g., FintechBase.xcworkspace &nbsp;</li><li>Xcode Scheme with Release configuration - e.g., Developement &nbsp;</li></ul><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-3.webp" alt="M2P Fintech" title="" width="100%" height="270"><ul class="list-node" id="yyqu3ol0l"><li>Certificates, AppID, Provisioning profiles setup for production in iTunes Connect - Use <a class="link" href="https://help.apple.com/xcode/mac/current/#/dev60b6fbbc7">Apple’s documentation</a> for setting up&nbsp;</li><li>macOS with Distribution certificate in the keychain &nbsp;</li></ul><h3 class="heading-node" id="8sncc4746" style="text-align: justify">Analyzing &nbsp;</h3>We perform static analysis of the source code. The xcodebuild has the ability to clean and analyze the source code for any common syntax errors. &nbsp;<h3 class="heading-node" id="ceoujw6ub" style="text-align: justify">Code for analyzing the project using the terminal&nbsp;&nbsp;</h3>xcodebuild - workspace FintechBase.xcworkspace -scheme Development -sdkiphonesimulator10.3 clean analyze &nbsp;<h3 class="heading-node" id="kfx4bsyjr" style="text-align: justify">Building &nbsp; &nbsp;</h3>We can build an iOS app using xcodebuild ‘build’ action which can generate the derived data for our iOS app. Once the application is built, it can run inside the simulator or can be used by the test bundle. &nbsp;<h3 class="heading-node" id="2l3qqcg9r" style="text-align: justify">Build for running &nbsp;</h3>We can simply build our app to run inside simulators by using the command &nbsp;xcodebuild -workspace FintechBase.xcworkspace -scheme Development -configuration Release -allowProvisioningUpdates build &nbsp;<h3 class="heading-node" id="qpt6jm8bp" style="text-align: justify"> Archiving </h3>Most of the iOS engineers face difficulties in archiving an iOS application as it deals with provisioning profiles, certificates, and build configurations.&nbsp;To upload an app to iTunes Connect or deploy it on to the provisioned devices, we need to build an app for generic iOS device destination as well as export it in the IPA format. &nbsp;Next step is building our application with release configuration scheme ‘Development’ with generic iOS device destination. &nbsp; &nbsp;There are two steps involved.&nbsp;<ul class="list-node" id="lt01qgpu1"><li>Building an archive with xcodebuild archive &nbsp;</li><li>Creating the .ipa file with xcodebuild -exportArchive &nbsp;</li></ul><h4 class="heading-node" id="uimw8zxqa" style="text-align: justify">Without Team ID &nbsp;</h4>xcodebuild archive -workspace FintechBase.xcworkspace -scheme Development clean build archive  -archivePath ./build/FintechBase.xcarchive &nbsp;<h4 class="heading-node" id="lw00yqpeu" style="text-align: justify">With Team ID &nbsp;</h4>xcodebuild archive -workspace FintechBase.xcworkspace -scheme Development DEVELOPMENT_TEAM="XXXXXXXXXX" -allowProvisioningUpdates  -archivePath ./build/FintechBase.xcarchive &nbsp;<h4 class="heading-node" id="b1r52lons" style="text-align: justify">Note&nbsp;</h4><ul class="list-node" id="r267dseji"><li>The build is created using the above command build/FintechBase.xcarchive&nbsp;</li><li>Replace ‘XXXXXXXXX’ with your team ID&nbsp;</li></ul>We now export the .ipa using the command&nbsp;xcodebuild -exportArchive -allowProvisioningUpdates -archivePath  ./build/FintechBase.xcarchive -exportPath ./build/ -exportOptionsPlist ./build/ExportOptions.plist &nbsp;Note that the above command requires a ExportOptions argument that points to a .plist file with export options. For a complete list of what you can put in that plist, run xcodebuild -help.&nbsp;&nbsp;Create build folder in a project and add ExportOptions.plist<img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-1-1.webp" alt="M2P Fintech" title="" width="100%" height="530"><h4 class="heading-node" id="q4fzt0obs" style="text-align: justify">Find the sample code for ExportOptions</h4><img src="https://m2p-website-file.s3.ap-south-1.amazonaws.com/m2p-website-file/marketing-cms/m2p-blog/2023/06/MicrosoftTeams-image-2-1.webp" alt="M2P Fintech" title="" width="100%" height="199">&lt;?xml version="1.0" encoding="UTF-8"?&gt; &nbsp;&lt;!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN""<a class="link" href="http://www.apple.com/DTDs/PropertyList-1.0.dtd">http://www.apple.com/DTDs/PropertyList-1.0.dtd</a>"&gt; &nbsp;&lt;plist version="1.0"&gt; &nbsp;&lt;dict&gt; &nbsp;&lt;key&gt;generateAppStoreInformation&lt;/key&gt; &nbsp;&lt;false/&gt; &nbsp;&lt;key&gt;manageAppVersionAndBuildNumber&lt;/key&gt; &nbsp;&lt;true/&gt; &nbsp;&lt;key&gt;method&lt;/key&gt; &nbsp;&lt;string&gt;app-store&lt;/string&gt; &nbsp;&lt;key&gt;signingStyle&lt;/key&gt; &nbsp;&lt;string&gt;automatic&lt;/string&gt; &nbsp;&lt;key&gt;stripSwiftSymbols&lt;/key&gt; &nbsp;&lt;true/&gt; &nbsp;&lt;key&gt;teamID&lt;/key&gt; &nbsp;&lt;string&gt;XXXXXXXXXX&lt;/string&gt; &nbsp;&lt;key&gt;uploadSymbols&lt;/key&gt; &nbsp;&lt;true/&gt; &nbsp;&lt;/dict&gt; &nbsp;&lt;/plist&gt; &nbsp; &nbsp;<h4 class="heading-node" id="ga13psli6" style="text-align: justify">Export Options</h4><ul class="list-node" id="kmyta6keu"><li>method: (String) The method of distribution, which can be set as any of the following: <ul class="list-node" id="vjjzjfgiv"><li>app-store &nbsp;</li><li>enterprise &nbsp;</li><li>ad-hoc </li><li>development &nbsp;</li></ul></li></ul><ul class="list-node" id="6jmqzfr7a"><li>teamID: (String) The development program team identifier. </li><li>signingtyle: (String) Automatic Signing “automatic”, incase of manual signing mention “manual” add provisioningProfiles and signingCertificate </li><li>uploadBitcode: (Boolean) Option to include Bitcode. </li><li>manageAppVersionAndBuildNumber: to ensure that you have already updated your version/build number before archiving</li><li>generateAppStoreInformation: For App Store exports, should Xcode generate App Store Information for uploading with iTMSTransporter. Defaults to NO </li><li>uploadSymbols: Should symbols be stripped from Swift libraries in your IPA. Defaults to YES</li></ul> &nbsp;After successfully running the command, the ipa file will be generated inside the build folder in the name of FintechBase.ipa&nbsp;The next step involves automating the build generation using Fastlane and pushing it to TestFlight which we will be covering in the next blog.&nbsp;Till then, Stay tuned!&nbsp;Have any questions/suggestions?&nbsp;&nbsp;&nbsp;Write to us at <a class="link" href="mailto:business@m2pfintech.com">business@m2pfintech.com</a>. Our expert team will get in touch with you.&nbsp;&nbsp;&nbsp;<a class="link" href="https://m2pfintech.com/newsletter/">Subscribe</a> to our newsletter and get the latest fintech news, views, and insights, directly to your inbox.&nbsp;Follow us on <a class="link" href="https://www.linkedin.com/company/m2pfintech/mycompany/">LinkedIn</a> and <a class="link" href="https://twitter.com/m2pfintech">Twitter</a> for insightful fintech bytes curated for curious minds like you.&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;

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