WireMock.Net

Lightweight Http Mocking Server for .NET, inspired by WireMock.org (from the Java landscape).

HTTP response stubbing, matchable on URL/Path, headers, cookies and body content patterns
Library can be used in unit tests and integration tests
Runs as a standalone process, as windows service, as Azure/IIS or as docker
Configurable via a fluent C# .NET API, JSON files and JSON over HTTP
Record/playback of stubs (proxying)
Per-request conditional proxying
Stateful behaviour simulation
Response templating / transformation using Handlebars and extensions
Can be used locally or in CI/CD scenarios
Can be used for Aspire Distributed Application testing

A core feature of WireMock.Net is the ability to return predefined HTTP responses for requests matching criteria. See Wiki : Stubbing.

WireMock.Net support advanced request-matching logic, see Wiki : Request Matching.

The response which is returned WireMock.Net can be changed using templating. This is described here Wiki : Response Templating.

The WireMock admin API provides functionality to define the mappings via a http interface see Wiki : Admin API Reference.

WireMock.Net can be used in several ways:

You can use your favorite test framework and use WireMock within your tests, see Wiki : UnitTesting.

See Wiki : WireMock.Net.Testcontainers on how to build a WireMock.Net Docker container which can be used in Unit/Integration testing.

sheyenrath/WireMock.Net.xUnitv1.13.0