Meta OAuth Integration Setup

@mascotindia123

Hello, I can set up Meta OAuth integration for Facebook, Instagram, WhatsApp, and Messenger with full working authentication and messaging flows. Scope OAuth setup for all 4 Meta platforms Secure callback URLs + token handling (long-lived + refresh) Instagram DM integration (send/receive messages) WhatsApp Business API (text, images, videos + webhooks) Facebook Pages + Messenger login and permissions Webhook setup for delivery/read events App Review preparation and documentation Deliverables Working OAuth flows for all platforms Clean, reusable code + .env samples Setup guide for staging and production App Review submission instructions Success Criteria All OAuth flows return valid tokens Instagram + WhatsApp messaging works in test mode Setup can be redeployed in under 1 hour Timeline 3–5 days Warm regards, Harpreet Singh

@kamran2012

Hello there, I will set up the full OAuth flow for Facebook, Instagram, WhatsApp, and Messenger — secure endpoints, callback URLs, token refresh logic, and App Review submission with permission justifications. For WhatsApp webhooks, I will implement signature verification on every incoming payload to prevent spoofed delivery/read receipts — a step Meta requires but many developers overlook during review. Questions: 1) What is your current backend stack? 2) Do you already have a Meta Business account and verified app created? Send me a message and we can go over the details. Best regards, Kamran

@extreamcode

Hi there, You’re not just looking for “Meta login” , you’re trying to avoid the messy part most integrations fail on: permissions, token lifecycles, webhooks, and App Review proof that Meta will actually accept. I can set up a reliable OAuth architecture for Facebook, Instagram, WhatsApp Business API, and Messenger, including secure callback URLs, page-level permissions, long-lived token handling, webhook verification, and message/media exchange flows. I’ve worked with OAuth, REST APIs, PHP/JavaScript backends, webhooks, environment-based configs, and third-party review requirements, so I’ll focus on making this reproducible for both staging and production. For Instagram, I’ll structure the Direct Messages permission flow and justification clearly. For WhatsApp, I’ll cover text/photo/video messaging plus delivery/read receipt webhooks. I’ll also provide clean commented snippets, .env samples, and a concise setup guide another developer can follow quickly. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Do you already have a Meta Business account, verified business, and existing Meta app IDs for Facebook/Instagram/WhatsApp, or should the setup include creating/configuring those from scratch? Looking forward to your reply so we can finalize the exact plan. Best regards, Asad

@teodorgeorge

Hello, I can help set up a clean and dependable OAuth flow for Facebook, Instagram, WhatsApp and Messenger, keeping everything simple to reuse and easy to document. I’ve worked with Meta’s permissions, messaging features and token lifecycles, and I can put together code samples and a guide you can follow quickly. My focus will be on making sure the DM and WhatsApp messaging features run smoothly and that the setup is clear enough for another developer to redeploy without issues. Thanks, Teo

@kareemmaize

Hi - the tricky part here is not OAuth itself, it is making all four Meta products behave consistently while handling tokens, permissions, and webhooks without breaking during App Review. I’d set up each flow cleanly, then unify how tokens, refresh logic, and messaging events are handled across the system. User connects account - OAuth redirects to Meta - permissions are granted - callback returns token - system stores and refreshes it - webhooks receive messages/events - app processes and responds. Looks correct, but fails when tokens expire or permissions are partially approved. Inconsistent token handling can break messaging in real use, so I handle it with long-lived tokens, refresh jobs, and structured webhook validation. Input - OAuth flow. Processing - token + webhook logic. Output - working integrations. The part to get right early is App Review readiness.

@durgesh8527

With over a decade of comprehensive experience as a Full Stack Developer, I have built complex, scalable, and performance-driven solutions. I am proficient in several languages and have in-depth understanding of various APIs and integration processes which makes me the ideal candidate for your OAuth Integration setup project. My skillset includes JavaScript and PHP matching well with Meta OAuth requirements. Moreover, with an added advantage of successfully navigating Meta's App Review process before, I have practical knowledge about the ins and outs that could save us valuable time while ensuring your project complies with Meta's policies. I can confidently take care of all the endpoints, callback URLs, permissions configuration, access token handling and more for Facebook, Instagram, WhatsApp and Messenger. In addition to my technical skills and Meta’s ecosystem know-how, I offer clear, concise documentation so that your team can seamlessly replicate the integration settings without relying on external help. My proven track record includes not only technically competent work but also consistent on-time delivery with complete commitment to project schedules. By entrusting this project to me, you gain a dedicated partner who is equally invested in the success of your investment. Do let's connect so we can get started immediately!

@Tanmoy236

Greetings! I specialise in Meta platform integrations and OAuth implementation, with over 9 years of experience configuring secure authentication flows, webhook handling, and API integrations across Facebook, Instagram, WhatsApp, and Messenger. Here's how I can help: - Configure secure OAuth endpoints and callback URLs for all four Meta platforms, handling access token refresh logic and long-lived token management cleanly and reliably - Integrate Instagram Direct Messages permission, WhatsApp Business API text and media messaging with delivery and read receipt webhooks, and Facebook and Messenger page-level permission flows - Prepare your application for Meta App Review with clear testing instructions, thorough permission justifications, and everything documented to meet Meta's submission requirements - Deliver clean, well-commented code snippets, environment variable samples, and a concise setup guide that lets another developer reproduce the full integration on staging or production in under an hour I have successfully navigated Meta App Review multiple times and understand exactly what reviewers look for — no delays from preventable submission errors. What stack is your web app built on, and do you have an existing Meta App ID configured or are we starting the app setup from scratch?

@PMPMPM1985

Hello, I understand you need a developer to integrate Meta OAuth for Facebook, Instagram, WhatsApp, and Messenger, including DM and message handling. I can certainly set up the OAuth endpoints, manage permissions for DMs and messages, implement token refresh, and prepare your app for review. You can expect clear documentation and functional integration. Regards, Parvesh M.

@MWaqar5246

Hello, I see you’re looking for a developer to set up a reliable OAuth integration across Meta products (Facebook, Instagram, WhatsApp, and Messenger) with proper token handling, API permissions, and a clean setup ready for production and Meta App Review. For this implementation, I would structure the solution with secure environment-based configuration, modular auth handlers per platform, and clean webhook endpoints for WhatsApp and Messenger event handling. I’ll also ensure Instagram DM permissions and WhatsApp Business messaging (text, media, delivery receipts) are properly tested in a staging environment before production deployment. Along with that, I’ll prepare clear documentation so the entire setup can be replicated or redeployed easily. Before starting, I’d like to confirm: are you already approved for all required Meta permissions (especially Instagram Messaging and WhatsApp Business API), or do you need assistance preparing the App Review submission as well? If everything is ready, I can begin immediately and deliver a fully working integration with documentation and test cases. Let’s connect and finalize the setup details. Best regards, M Waqar Tariq

@VianRey1

Juggling four different Meta OAuth flows is not just time-consuming, it’s risky—one misstep and your users lose access to core features like Instagram DMs or WhatsApp media. The challenge of configuring each endpoint, handling token logic, and preparing for Meta’s strict review could easily stall your launch or cause costly delays. You can expect a seamless, documented OAuth integration for Facebook, Instagram, WhatsApp, and Messenger that works error-free and is simple to redeploy. First, I’ll configure secure OAuth flows for every platform and handle every permission detail, including Instagram Direct messages and WhatsApp media. Next, I’ll set up robust token refresh logic and create clear, step-by-step documentation with code and environment samples. Finally, I’ll prepare the app for Meta App Review with testing instructions and permission justifications. Which stack would you like the code snippets in, or do you prefer language-agnostic solutions?

@FizzaNadeemK

Hi, I can set up and document a secure, production-ready OAuth system for Facebook, Instagram, WhatsApp, and Messenger, including all required Meta permissions and webhook flows. I understand you need full authentication handling across all four platforms, plus Instagram DM access, WhatsApp Business messaging (text, media, receipts), and stable token refresh logic ready for App Review. My approach is to configure each Meta product separately with correct OAuth endpoints, then unify token management, webhook handling, and permission scopes into a clean, reusable structure that works across staging and production. I’ll also prepare App Review-ready documentation with clear testing steps, environment variables, and deployment notes so the setup can be replicated quickly by another developer. If needed, I can first review your current app structure to ensure we align the OAuth design with your existing backend architecture before implementation. Best Regards, Fizza Nadeem K

@ashinnd84

Hello there, we are a team of Full Stack Web and Mobile App Developers. Please, send me a message to discuss the work and finish in no time. Thanks Ashish Kumar.

@DngPhgNam

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I have implemented OAuth integrations for multiple platforms including Facebook and Instagram, enabling seamless user authentication and messaging capabilities within web applications. The most critical aspect to successfully complete this project is securely configuring OAuth flows and managing token lifecycle efficiently. Approach: ⭕ Configure secure OAuth endpoints and callback URLs for Facebook, Instagram, WhatsApp, and Messenger. ⭕ Integrate Instagram “Direct messages” permission for sending and receiving DMs. ⭕ Enable WhatsApp Business API for text, photo, and video message exchange with webhook support. ⭕ Implement Facebook & Messenger login and page-level permissions. ⭕ Develop access-token refresh and long-lived token management logic. ⭕ Prepare detailed, clear documentation and setup guide for Meta App Review and developer replication. ❓ What tech stack are you currently using or prefer for this integration? I am confident that my experience with OAuth and Meta API integrations will allow me to deliver a secure, well-documented, and fully functional setup efficiently. Best regards, Nam

@techsty2014

Hey, I will set up OAuth for all four Meta products: Facebook + Messenger with long-lived tokens, Instagram DMs via Messaging API, and WhatsApp Business API with webhooks. Setup guide + App Review package included. One angle: OAuth code is the easy part. Meta App Review blocks most integrations. Instagram DMs and WhatsApp both require Business Verification (D-U-N-S) + a screencast review, 2-6 weeks turnaround, high rejection rate without specific justification. Questions: 1) Business Verification in place? 2) WhatsApp Business Account provisioned? 3) Callback domains finalized? Looking forward to discussing further. Best regards, Faizan

@billybryan98

Hello, I hope you are well. I am an independent OAuth and API integration developer with a solid track record building secure, production-ready flows for major platforms. I’ll craft a robust, end-to-end Meta OAuth setup covering Facebook, Instagram, WhatsApp, and Messenger, with token management, webhook handling, and clear documentation. Expect secure OAuth endpoints and callback URLs for each platform, Instagram Direct Messages permissions integration, WhatsApp text/media messaging with delivery/read webhooks, and seamless Facebook/Login plus page-permission flows. I’ll also implement long-lived tokens, prepare for Meta App Review with precise testing instructions, and deliver clean, well-commented code snippets, environment variable samples, and a concise deployment guide to reproduce the setup on staging and production. I can handle the work based on my expertise and past experiences. I guarantee a reliable, drop-in-ready integration that meets all success criteria. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan

@sf264

Hello, I will setup and document a reliable OAuth flow for all four Meta products your web app relies on: WhatsApp, Instagram, Facebook, and Messenger. I have successfully navigated Meta's App Review before. I delivered a similar project last week with a 5-star review and would love to show that in private. Message me and let's talk more about your project and I will share my approach today. I am ready to start right now, Fahad.

@SmartCodeDev

Hello, I can set up and document a complete OAuth flow for Facebook, Instagram, WhatsApp, and Messenger with reliable token handling. I have experience working with Meta APIs including App Review and permission approvals. I will configure secure OAuth endpoints, callbacks, and long lived token management. Instagram DM access will be implemented with proper permissions and tested send and receive flow. WhatsApp Business API will support text photo and video messaging with webhook handling for delivery and read status. Facebook and Messenger login and page permissions will be fully integrated. I will provide clean well commented code along with environment setup examples. Documentation will be simple and clear so deployment on staging and production is fast. Ready to start immediately and ensure smooth approval and integration.

@codefusion53

Hi I’ve built Meta integrations using Facebook Login, Instagram Graph API, Messenger, and WhatsApp Cloud API where the main challenge is not just OAuth but keeping permissions stable through App Review and handling multi-product token flow correctly. I can set up secure OAuth flows for all four platforms with proper callback routing, token exchange, long-lived token handling, and webhook structure. I’ll also prepare the app for Meta review by organizing permission scopes, testing steps, and clean documentation so approval is smoother. You’ll get working integrations for Facebook, Instagram DMs, Messenger, and WhatsApp messaging (text, media, delivery and read webhooks), plus clean code examples and a simple setup guide that can be reproduced in staging and production without confusion. Best, Justin

@mayankinnovative

Hi, As per my understanding: You need a complete, production-ready OAuth setup for Meta platforms—Facebook, Instagram (with DM permissions), WhatsApp Business API, and Messenger—covering secure auth flows, token lifecycle management, messaging capabilities, and App Review readiness with clear documentation. Implementation approach: I will design a unified OAuth architecture (Node.js or your preferred stack) with secure endpoints, callback handling, and environment-based configs. Each platform flow will be implemented with proper scopes, token exchange, and long-lived token management. I’ll integrate Instagram DM permissions, WhatsApp Cloud API (messages + media + webhooks), and Facebook/Messenger page-level access. Webhooks will handle incoming events (messages, delivery/read receipts). I’ll also prepare App Review assets—test users, step-by-step instructions, and permission justifications. Final delivery will include clean code snippets, env samples, and a concise reproducible setup guide for staging/production. A few quick questions: 1. Which backend stack do you prefer (Node.js, Python, etc.)? 2. Do you already have a Meta Business account and app created? 3. Will this run on a single domain or multiple environments? 4. Any existing webhook infrastructure in place? 5. Timeline for App Review submission?