Browse categories
Explore
Fiverr Pro
English
$
USD
I will integrate API, social login, and payment gateway
Bakul Sinha
5.0
5.0
About this gig
API Integration | Social Login | OAuth | Payment Gateway
Need to connect your application with a third-party API, social login, authentication system, or payment gateway?
I can integrate secure APIs and external services into your existing web application.
Services I can provide:
- REST API integration
- Third-party API integration
- Google social login
- Facebook login
- LinkedIn login
- OAuth authentication
- Stripe integration
- PayPal integration
- Payment gateway APIs
- Webhooks and callback handling
- API authentication and token handling
- JSON data processing
- Existing API troubleshooting
- Custom API functionality
Technologies I work with:
PHP, Laravel, Node.js, React, JavaScript, MySQL, PostgreSQL, MongoDB, WordPress, and REST APIs.
Why work with me?
- 12+ years of development experience
- Clean and maintainable code
- Secure authentication implementation
- Careful testing and troubleshooting
- Clear communication
Every API has different documentation, authentication methods, and technical requirements.
Please contact me before ordering with your API documentation, current technology stack and required functionality so I can recommend the appropriate package.
Get to know Bakul Sinha
Bakul Sinha
Senior Full Stack Developer with Laravel, React, Nodejs, WordPress
- FromBangladesh
- Member sinceSep 2016
- Last delivery1 year
Languages
Bengali, English, Hindi
Senior Full Stack Developer with 12+ years of experience building scalable web applications, SaaS platforms, business systems, eCommerce solutions, APIs, and mobile-friendly products. I work with Laravel, PHP, React, Node.js, Next.js, Ionic, WordPress, MySQL, and MongoDB. I hold Bachelor’s and Master’s degrees in Computer Science and Engineering. I can help with custom development, API and payment integration, bug fixing, optimization, deployment, and ongoing support, with a focus on clean code, practical solutions, and reliable communication.
My Portfolio
Other Software Development Services I Offer
FAQ
Which APIs can you integrate?
I can integrate REST APIs and many third-party services for authentication, payments, business applications, data synchronization and other functionality. Please send the API documentation before ordering.
Can you integrate Google, Facebook or LinkedIn social login?
Yes. I can integrate supported social login and OAuth authentication into compatible web applications.
Can you integrate Stripe or PayPal?
Yes. I can integrate supported Stripe or PayPal payment functionality based on your application's requirements and the provider's available APIs.
Can you fix an existing API integration?
Yes. I can troubleshoot API authentication, failed requests, incorrect responses, callbacks, webhooks and other integration problems. Please send the error details before ordering.
What information do you need from me?
Please provide your requirements, current technology stack, API documentation, required endpoints/features and details about the expected workflow.
Should I contact you before placing an order?
Yes. API integrations vary considerably in complexity. Please contact me first so I can review the API and recommend the correct package, delivery time and scope.
Reviews
3 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
R raulsamuel303
United Kingdom
Very hard working
$50-$100
Price
Helpful?F flowvoiceaus
Australia
Ongoing collaborationGreat work, second time I've used his services and very impressed.
$200-$400
Price
Helpful?F flowvoiceaus
Australia
Ongoing collaborationFantastic work, very professional and easy to work with. Will be using again for future projects.
$400-$600
Price
B 
Seller's Response
Helpful?
Reviews
3 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
R raulsamuel303
United Kingdom
Very hard working
$50-$100
Price
Helpful?F flowvoiceaus
Australia
Ongoing collaborationGreat work, second time I've used his services and very impressed.
$200-$400
Price
Helpful?F flowvoiceaus
Australia
Ongoing collaborationFantastic work, very professional and easy to work with. Will be using again for future projects.
$400-$600
Price
B Seller's Response
Helpful?
