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Fiverr Pro
English
$
USD
I will develop advanced API integrations webhooks and database systems
Hayat Flutter
About this gig
Streamline your business operations by connecting your apps and databases. I specialize in building robust, secure, and high-performance API integrations, custom webhooks, and database architectures. Whether you need to sync CRM data, integrate payment gateways, or connect third-party platforms, I have you covered.
What I Offer:
- Third-party API integration (Stripe, HubSpot, Salesforce, Shopify, etc.)
- Custom RESTful or GraphQL API development
- Secure Webhook handlers with signature validation
- SQL & NoSQL Database setup, migration, and optimization
- Authentication (OAuth2, API keys, JWT)
Tech Stack:
- Languages: Node.js, Python, TypeScript, Go
- Databases: PostgreSQL, MySQL, MongoDB, Firebase
- Tools: Postman, Docker, AWS Lambda
Why choose this gig?
- Clean, optimized code with error handling
- Bulletproof data security & privacy
- Detailed API documentation
Eliminate manual data entry and automate your backend operations. Contact me before placing an order to map out your integration flow!
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Hayat Flutter
Hayat Flutter
Crafting Stunning, Scalable Apps with Flutter!
- FromPakistan
- Member sinceMar 2025
- Avg. response time1 hour
Languages
English
Hi, I'm Hayat – A Flutter App Developer with 3+ Years of Experience!
I build high-performance, scalable, and user-friendly apps. From ride-booking to eCommerce & social apps, I have delivered 20+ successful projects, including international clients, with seamless UX.
🔹 Why Choose Me?
✅ Fast & Optimized Apps
✅ Smooth & Engaging UI/UX
✅ End-to-End Development
If you want to use my skills, do not hesitate to contact me. Let's build something amazing!
FAQ
Can you connect any API even if it lacks documentation?
I can work with poorly documented APIs, but they must have some endpoint definitions. If it's a private API, I can reverse-engineer it or help write the wrapper.
How do you ensure data security?
I use industry-standard encryption, secure environment variables (env), OAuth2 mechanisms, and signature validation for webhooks to protect data in transit.
What databases do you support?
I specialize in relational databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis, Firebase/Firestore).
Do you provide documentation for the custom APIs you write?
Yes, I provide comprehensive Postman collections and API documentation (Swagger/OpenAPI) to make onboarding easy.
Will the integration handle high traffic?
Yes. For the Premium package, I build serverless architectures and implement rate-limiting, caching, and queuing systems (like RabbitMQ/Redis) to handle high load.
