I will build asp net core rest API and sql database backend


About this gig
Need a reliable backend API for your website, mobile app, or business application?
- I will develop a structured REST API using C# and ASP.NET Core with MySQL or Microsoft SQL Server database integration.
- I can help with CRUD APIs, database models, request validation, error handling, JWT authentication, role-based access, existing API improvements, and frontend-to-backend integration.
- I have hands-on experience developing ASP.NET-based backends for booking, e-commerce, healthcare, dashboard, and business applications.
- My focus is clean and maintainable code, clear API structure, validation, testing, and reliable database integration.
Please contact me before ordering if your API requires complex authentication, payment systems, third-party services, or a large database structure.
Get to know Praveen Dilshan
Full Stack Developer
- FromSri Lanka
- Member sinceSep 2026
Languages
Sinhala, English
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FAQ
What backend technologies do you use?
I primarily use C#, ASP.NET Core, REST APIs, MySQL, and Microsoft SQL Server.
Can you build CRUD APIs?
Yes. I can develop create, read, update, and delete endpoints with relational database integration.
Can you add JWT authentication?
Yes. JWT authentication and basic role-based authorization can be included depending on the selected package.
Can you connect the API to my React frontend?
Yes. I can help integrate the API with a React frontend or troubleshoot the connection between both applications.
Can you work with my existing database?
Yes. I can review an existing MySQL or MSSQL database and develop or update APIs around its structure.
Do you integrate third-party APIs?
Yes, depending on the provider and documentation. Please contact me first so I can review the integration requirements.
Do you provide deployment?
Deployment can be provided as an additional service when a compatible hosting/server environment is available.

