Google OAuth2 & Cloud Data Sync

@AwaisChaudhry

Hello, I understand you need a secure Google OAuth 2.0 sign-in for a web app, with seamless read/write access to cloud data (Drive/Sheets), and optional Microsoft 365 support if you want. I will implement a standards-based OAuth 2.0 flow (consent screen, token refresh, revocation handling). A lightweight backend connector will create the necessary Drive folder (or OneDrive) and a spreadsheet-style table to store user records. The code will be clean, well-commented, and I’ll provide a quick setup guide so you can plug it into whichever stack you end up using. If you’ve already wired Google authentication, I can demonstrate read/write calls to Drive or Sheets; and I can mirror the same pattern for Microsoft. The result is a robust, easy-to-maintain integration with clear docs and minimal dependencies. Which cloud provider do you want as the primary target (Google Drive/Sheets) with Microsoft 365 as fallback, and what are the must-have data fields and security requirements? Which cloud provider do you want as the primary target (Google Drive/Sheets) with Microsoft 365 as fallback, and what are the must-have data fields and security requirements? Best regards,

@OutsourceMan

⭐⭐⭐⭐⭐ Valuable Client, CnELIndia and I, Raman Ladhani, can deliver the complete OAuth-based workflow you’re seeking. We’ll implement a secure, standards-compliant Google OAuth 2.0 flow with proper consent, token refresh, and revocation handling, then integrate a lightweight backend connector that automatically provisions a user-specific Drive folder and a Sheets table for structured read/write operations. If you prefer Microsoft 365, we can mirror the same pattern using OneDrive and Excel APIs, ensuring a seamless hand-off with identical data-access logic. Our approach includes: • Implementing a clean OAuth layer with reusable methods for sign-in, token storage, and renewal. • Building a minimal backend service that manages folder creation, spreadsheet initialization, and CRUD operations. • Providing clear, well-commented code and a short setup guide so you can drop the module into any stack with minimal changes. Having delivered Google and Microsoft integrations for multiple clients, we can confidently help you achieve a smooth, reliable authentication and data-sync experience.

@Techislandsllc

Hello jasv2, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on Cloud Computing, OAuth, Web Development, Backend Development, Google Sheets, Google APIs, API Development, Microsoft 365 Lets connect in chat so that We discuss further. Thank You

@techplusintl

Hi there, ★★★ Google Sheets / API Development Expert ★★★ 6+ Years of Experience ★★★ I will successfully integrate Google OAuth 2.0 sign-in into your web application by following these steps: 1. Analyze your existing web application structure and determine the best integration approach (4 hours) 2. Implement the OAuth 2.0 flow, including the consent screen, token management, and secure handling (8 hours) 3. Create a backend connector to establish a Drive/OneDrive folder and set up a spreadsheet for user data storage (6 hours) 4. Test the authentication and data handling thoroughly to ensure reliability and security (4 hours) 5. Document the code and provide a setup guide for easy implementation (2 hours) What I need from you: 1. Access to your existing web application codebase 2. Any specific requirements or preferences for the data structure in Drive/Sheets 3. Clarification on whether Microsoft 365 integration is also desired I look forward to connecting at your convenience to ensure the project's success. Best Regards, TechPlus Team

@tobiask5

Hello, I hope you are doing well. I’ve set up Google OAuth 2.0 and cloud-storage read/write flows for multiple web apps, and the challenges you describe—secure consent flow, token refresh, folder creation, and spreadsheet-style data handling—are exactly what I’ve solved before. In past projects, I built lightweight backend connectors that created user-specific Drive folders, generated Sheets automatically, and exposed simple read/write functions that could plug into any front-end stack. I’ve also implemented the same pattern using Microsoft Graph, so switching between Google and Microsoft is straightforward if you choose to keep both options open. For your project, I would deliver a clean OAuth 2.0 login, automatic folder + table setup after authentication, readable code, and a short setup guide so you can integrate the module anywhere. Which provider do you want the system to default to first—Google or Microsoft?

@DeveloperStation

Hi jasv2, We’ve integrated Google OAuth 2.0 with multiple web apps, enabling seamless user authentication and secure data access. For one client, we built a custom Google Sheets API that automatically generated reports based on user data, which were then emailed to users. We can also extend this solution to Microsoft 365, as we’ve developed similar integrations for Outlook and Teams. In addition to OAuth, we can enhance your app with features like user management, automated emails, and webhooks to keep your product competitive. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit. I usually respond within 10 minutes. Best regards, Adil

@einnovention

I believe my team at Einnovention would be the ideal fit for your project. We have extensive experience in API development and web development which makes us adept in implementing Google OAuth 2.0 sign-in and cloud data sync into your web application seamlessly. OAuth 2.0 flow and building backends that can create necessary folders and tables to store data in Google Drive or Sheets (or Microsoft 365 equivalents) have been key parts of our previous projects. We understand the nuances of a secure, standards-compliant OAuth 2.0 flow— incorporating consent screen, token refresh, and revocation handling. Moreover, we have a dedicated team experienced in API integrations who can help make this project a success. Our vast knowledge of REST APIs, Google API, Web-to-Mobile API and Single Sign-On (SSO), provides us with a complete understanding of the task at hand. We are able to deliver clean, well-commented code that your team can plug into any stack of your choice after receiving it from us. What separates us is our commitment to delivering beyond expectations. With transparent communication, clear milestones, reliable delivery, unlimited revisions until full satisfaction, free support for more than 2 weeks after delivery; you never have to worry about a project not meeting expectations or timelines with us. We are excited about the possibility of working with you and turning your brilliant needs into even more brilliant technical solutions!

@piyushg200

⚠️ Your vision + my expertise = perfect Google OAuth 2.0 Integration ⚠️ Hello jasv, I see you need reliable Google OAuth 2.0 sign-in for seamless user authentication. I understand the importance of a secure OAuth 2.0 flow without any disruptions. I've built similar solutions in cloud integration. With 5 years of hands-on experience in web app development, I'll deliver secure OAuth 2.0 sign-in with structured data read/write capabilities to Google Drive/Sheets or Microsoft 365. Expect a quick setup guide for easy integration. Successfully delivered similar projects with 5-star ratings. Available to start immediately with the first milestone ready in a week. I'd love to discuss your vision. When works best for a quick 10-minute call? Worst case, you'll get free insights to guide your project. Looking forward to collaborating, Piyush Gupta Web App Developer | 5+ Years

@webperfection123

Hi, Have you already set up the Google API project, or do you need assistance with that as well? I can implement a secure OAuth 2.0 flow for your web app, allowing users to authenticate with just one click. Additionally, I can create a backend connector to manage data in Google Drive or Sheets, ensuring a seamless read/write experience. I’ll also write clean, well-commented code and provide a setup guide to make integration easy. I’ve successfully integrated Google authentication in the past and have experience with Microsoft 365 solutions as well. Let’s discuss how I can help you achieve a smooth implementation. Best Regards, Priyanka

@techsty2014

Hello there, I can integrate a secure and seamless Google OAuth 2.0 authentication to your web application, enabling users to log in with a single Google click. Post-authentication, I'll ensure smooth data synchronization with Google Drive and Sheets. I will establish a standards-compliant OAuth 2.0 flow, including token refresh and revocation handling. My approach includes developing a lightweight backend connector to create user-specific folders and spreadsheet-style tables either on Google Drive or OneDrive, based on your preference. The code will be clean, well-commented, and I'll provide a quick setup guide for easy integration into your tech stack. Questions: • Do you have a preference for Google Drive over OneDrive, or should both options be equally considered? • Is there a specific tech stack you are using that I should align with for this integration? Having previously implemented similar solutions, I can ensure a reliable integration that meets your needs. Looking forward to helping you streamline your app's authentication and data handling. Thanks and best regards, Faizan

@zulqrn

Hi, I have solid understand and hands on experience in OAuth 2.0 and would love to assist you. Please message me to discuss. Thanks !

@sedawy

Seamless login and cloud sync failures can destroy user trust fast—every extra authentication click or sync delay means lost users and broken sessions. Without a secure OAuth2 implementation and reliable data flow, your app risks token expirations, user data corruption, and API quota lockouts down the line. Approach: - Implement secure, standards-compliant Google OAuth 2.0 flow (consent screen, refresh, and revoke handling) - Build backend connector to provision Drive/Sheets (or OneDrive/Excel) storage dynamically per user - Handle structured read/write operations with clean token scope management - Provide fully commented code and integration-ready setup documentation - Optional dual integration layer for seamless Microsoft 365 fallback About Me: 15+ years in IT infrastructure & security, expert in emergency auth integration repair, issue resolution, and server-side hardening, proven ⭐️⭐️⭐️⭐️⭐️ record. Let’s get this done right the first time. Available immediately. ⭐️⭐️⭐️⭐️⭐️ rated in similar jobs, check my profile. P.S. Store refresh tokens securely and audit OAuth scopes often - improper handling can expose user data over time.

@waqaswebmaster

I’ve implemented Google OAuth 2.0 + Drive/Sheets integrations many times and can wire a secure, standards-compliant flow (consent screen, refresh tokens, revocation) into your app, then attach it to user-specific folders and spreadsheets. I’ll build a lightweight backend connector that, on first login, creates the user’s Drive folder + table, and exposes simple read/write methods you can call from any stack. Code will be clean, well-commented, and delivered with a short setup guide so you can drop it straight into your project—and I can mirror the same pattern for Microsoft 365 if you’d like cross-cloud support. Best regards, Waqas Ahmed

@arshman18

Hi There, I see you're looking to add Google OAuth 2.0 sign-in to your web application, making it easy for users to authenticate with just one click. I can help set up a secure and compliant OAuth flow with all the necessary features like token refresh and revocation handling. Additionally, I can create a backend connector that will manage user-specific data in Google Drive or Sheets, ensuring a smooth experience. With experience in implementing Google authentication and API interactions, I can provide clean, well-commented code and a straightforward setup guide for your team. If you’re also considering Microsoft 365, I can set that up in a similar fashion. To better understand your needs, could you share what specific types of data you want to store in Drive or Sheets after authentication? Best regards,

@chraheelbhatti

With over 8 years of experience as a PhD Resarcher and Senior Machine Learning Engineer, I am more than equipped to handle the intricacies of your project. In my academic and professional journey, I've successfully designed, deployed, and managed robust Cloud-based AI solutions, just like the one you are seeking for your web application. Apart from possessing an in-depth understanding of AI systems, my experience spans Google Cloud Platform (Cloud Data Sync) and Azure (Microsoft 365).You need secure, standards-compliant OAuth 2.0 flow? Let me tell you something about OAuth - I've worked on countless OAuth projects throughout my career. But it’s not just about connecting your app with Google or Microsoft. A lightweight backend connector that ensures smooth hand-off is crucial—creating Drive folders and spreadsheet-style tables for each user; I can do that with ease. Additionally, you'll receive clean, well-commented code alongside a comprehensive setup guide to facilitate optimal app integration at your end.

@salajka

I'm a Google APIs and OAuth specialist with extensive experience in cloud authentication and data synchronization. I've successfully implemented OAuth 2.0 flows, Google Drive integration, and cloud data syncing for multiple clients including real estate management systems and business automation projects. My expertise includes: - Secure OAuth 2.0 implementation with proper token handling and refresh mechanisms - Google Drive and Google Sheets API read/write operations - Cloud data synchronization and backend connectors - Standards-compliant authentication flows with consent screens - Error handling and token revocation - Clean, well-documented, production-ready code - Microsoft 365 API integration experience I understand the importance of security in authentication systems and will deliver: - Secure consent screen with token refresh and revocation handling - Lightweight, efficient backend connector for Drive/Sheets data storage - Clear setup documentation and code comments for easy integration - Bonus: Equivalent Microsoft 365 integration if needed Ready to deliver reliable OAuth2 implementation with excellent code quality and documentation.

@nikhilgarg96

Hi As a developer with a solid understanding of API Development and Web Development, I have successfully integrated Google OAuth 2.0 on multiple projects, offering seamless and secure authentication for users. Moreover, my familiarity with backend technologies such as PHP(Laravel, CI, CakePHP, Yii), Node.js, and Python/Django is complemented by my extensive use of cloud storage facilities like Google Drive and Microsoft OneDrive to read and write structured data, specifically Drive or Sheets. I understand that the smooth hand-off between different technologies (Google Drive/Sheets or Microsoft 365) is crucial for your project, and I assure you that I have the skills and experience necessary to make this transition seamless. My portfolio showcases a range of diverse projects similar to yours from CRM to custom websites – all executed with clean, well-commented code. To further facilitate your integration process, I will provide a step-by-step setup guide designed specifically for your chosen stack. In conclusion, my subject matter expertise alongside my adaptability and meticulous attention to detail make me an ideal candidate for this project. Let's connect and transform your vision into reality! Thanks...

@oleksandrf3

hi, your project sounds like a perfect fit for my skill set—I’ve integrated Google OAuth 2.0 with secure token handling and seamless consent flows on multiple apps, always ensuring smooth user experiences. Implementing backend logic to auto-create Drive folders and Sheets for each user is something I’ve delivered before, and I can provide clean, well-documented code so you can slot it into your project with ease. If you’re thinking about potentially switching to Microsoft 365 in the future, I can establish the same authentication and data access patterns for both providers, keeping your app flexible. The solution will include quick setup instructions and code that’s easy to follow, with clear comments throughout. I can walk you through sample API read/write operations—Google or Microsoft—whichever you want to prioritize. Let’s connect and get your users signing in and saving data with zero friction. When’s a good time to chat further about your application specifics?

@tangramua

Dear jasv2,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in Cloud Computing, OAuth, Web Development, Backend Development, Google Sheets, Google APIs, API Development, Microsoft 365 and other technologies relevant to your project.   Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews.   Please contact us via Freelancer Chat to discuss your project in details.    Best regards, Sales department Tangram Canada Inc.      P.S. As seen from the details of your profile, you are located in the UK (Great Britain). Be informed that one of our PM (Project Managers) located in London (UK) and our technical offices located in Europe i.e. you will be able work with our specialists almost in the same time zone.