PROGRAMMING SERVICES

.NET Web API Development — Add Features to Your ASP.NET Core App — from $299

Name: Optimum Web
Address: Calea Iesilor 8, office 3, Chisinau, MD-2069, MD
Telephone: +373 22 843569
Rating: 4.8

Need a new REST controller, a background service, or an integration with a third-party API in your ASP.NET Core application? Our .NET developers deliver clean, tested C# code — with proper dependency injection, validation, error handling, and Swagger docs — as a pull request ready for your review.

Fixed Price: from $299

3–5 business days

14-Day Warranty

from $299

Fixed price, VAT excluded

Delivery3–5 business days

Warranty14 days

EngineersSenior only

Request a Quote — from $299

We'll confirm the exact price within 2 hours and send a PayPal invoice

+373 22 843569

WHAT YOU GET

Deliverables Included

New ASP.NET Core controller or service per agreed specification

Clean C# with proper DI, async/await, cancellation tokens

FluentValidation or DataAnnotations input validation

Global exception handling middleware integration

xUnit or NUnit unit tests for new business logic

Swagger/OpenAPI documentation update

Entity Framework Core migrations if schema change required

IDEAL FOR

Who This Service Is For

Teams with .NET backlog and no available senior C# developers

CTOs who need one specific feature built without a long-term hire

Startups on ASP.NET Core who need expert help with a complex integration or architecture decision

TECHNOLOGIES

Technologies We Use

.NET 8ASP.NET CoreEntity Framework CoreC#SQL ServerPostgreSQLxUnitSwagger/OpenAPIMediatRAutoMapper

HOW IT WORKS

Our Process

Scope Discussion

Share your requirements, existing codebase structure, and conventions.

Development

We write clean, production-ready C# code following your project patterns.

Testing & Review

Unit tests written, PR submitted for your review.

Delivery

Code merged, documentation updated, handover complete.

FAQ

Frequently Asked Questions

We work with .NET 6, 7, and 8. For new code, we use .NET 8 (current LTS). We also maintain legacy .NET Framework 4.x projects if needed.

Yes — we review your project structure, existing patterns (Clean Architecture, MVC, Minimal API), and coding conventions, then add the feature in a consistent style.

Yes. Azure Blob Storage, Azure Service Bus, Azure AD/Entra ID, and Azure Functions integration is in scope. Add a note in your order.

Unit tests with xUnit or NUnit are always included. Integration tests with TestContainers.NET can be added as extended scope.

RELATED SERVICES