jarcoal/httpmock

Health v2 · maintenance only

Adoption not part of the score

2077 stars · 107 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

httpmock is a Go library for easily mocking HTTP responses from external resources in tests. It lets you register responders for exact URLs or regex patterns and inspect call counts.

Use cases

• mock external HTTP APIs in Go tests
• stub HTTP responses with exact URL or regexp matching
• count how many HTTP calls my code made during a test
• return fake JSON responses from an API client test
• test error handling for failed HTTP requests

When to choose

• you write Go code that calls external HTTP APIs and want deterministic tests
• you need regexp-based URL matching and call-count assertions
• you want a lightweight, well-maintained MIT-licensed mocking library

When to avoid

• you need to mock non-HTTP protocols like gRPC or databases
• you want contract testing against a real mock server
• your project is not written in Go

Facets

library · maturity stable

testing mocking http-client testing developer-tools apis backend go cross-platform http-mocking go-testing unit-testing http-responder test-double

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