hoverfly
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers (by SpectoLabs)
govcr
HTTP mock for Golang: record and replay HTTP/HTTPS interactions for offline testing (by seborama)
| hoverfly | govcr | |
|---|---|---|
| 8 | - | |
| 2,422 | 188 | |
| 0.3% | 0.5% | |
| 8.8 | 5.1 | |
| 25 days ago | 27 days ago | |
| Go | Go | |
| Apache License 2.0 | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
hoverfly
Posts with mentions or reviews of hoverfly.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-04-07.
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How to Implement Mock APIs for API Testing
Hoverfly: A lightweight service virtualization tool specializing in API simulation and traffic capture for realistic mocks. It's particularly useful for cloud-native applications and supports CI/CD integration.
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API testing through simulations
FROM alpine:3.21.0 # Packages RUN apk add --no-cache wget unzip curl # Set default arguments ARG HOVERFLY_VERSION="v1.10.6" ARG HOVERFLY_ADMIN_PORT=8888 ARG HOVERFLY_PROXY_PORT=8500 ENV HOVERFLY_ADMIN_PORT=${HOVERFLY_ADMIN_PORT} ENV HOVERFLY_PROXY_PORT=${HOVERFLY_PROXY_PORT} # Download and install both hoverfly and hoverctl RUN wget -q "https://github.com/SpectoLabs/hoverfly/releases/download/v${HOVERFLY_VERSION#v}/hoverfly_bundle_linux_amd64.zip" && \ unzip hoverfly_bundle_linux_amd64.zip -d /tmp && \ mv /tmp/hoverfly /usr/local/bin/ && \ mv /tmp/hoverctl /usr/local/bin/ && \ chmod +x /usr/local/bin/hoverfly && \ chmod +x /usr/local/bin/hoverctl && \ rm -rf hoverfly_bundle_linux_amd64.zip /tmp/* # Create default hoverctl config with environment variables RUN mkdir -p /root/.hoverfly && \ echo "hoverfly.host: localhost" > /root/.hoverfly/config.yaml && \ echo "hoverfly.admin.port: \"${HOVERFLY_ADMIN_PORT}\"" >> /root/.hoverfly/config.yaml && \ echo "hoverfly.proxy.port: \"${HOVERFLY_PROXY_PORT}\"" >> /root/.hoverfly/config.yaml EXPOSE ${HOVERFLY_PROXY_PORT} ${HOVERFLY_ADMIN_PORT} ENTRYPOINT ["hoverfly", "-listen-on-host=0.0.0.0"]
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Stubbing HTTP communication in E2E test with Hoverfly
In order to support requests to HTTPS sites Hoverfly comes with a bundled SSL certificate. However, as this is a testing tool, this certificate is self-signed, and needs to be marked as "trusted" before the applications using the proxy will attempt to connect to secure sites.
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10 Best API Mocking Tools (2024 Review)
Hoverfly is an open-source tool for mocking APIs. It features easy setup for mock configurations, random data generation, and conditional response setup. Hoverfly is useful for testing in various scenarios and troubleshooting issues.
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We created WireMock, an API platform that is designed to improve developer productivity and enables developers and testers to Mock APIs in every stage of the API lifecycle
Use https://github.com/SpectoLabs/hoverfly
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Review: 10 Top API Mock Tools
Hoverfly is an open-source tool for mocking and simulating APIs. It is relatively easy to use and has a wide range of features for mocking and simulating APIs, including support for importing and exporting mock configurations, generating random data for responses, and setting up conditional responses based on the contents of incoming requests.
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What happens when a plugin/VST is no longer supported?
Depending how robust their check in is, you could intercept and emulate the reply with something like hoverfly too.
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API Mock Testing Frameworks
What is your recommendation? Is there one widely used in the Golang community? I have come across hoverfly, but I wanted to have a few to perform a good benchmark exercise. Thanks
govcr
Posts with mentions or reviews of govcr.
We have used some of these posts to build our list of alternatives
and similar projects.
We haven't tracked posts mentioning govcr yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
When comparing hoverfly and govcr you can also consider the following projects:
monkey - Monkey patching in Go
gock - HTTP traffic mocking and testing made easy in Go ༼ʘ̚ل͜ʘ̚༽
mockit - Library that make mocking of Go functions/methods easy
prettybenchcmp - cmd tool for automatic storage and comparison of benchmarks results
mockery - A mock code autogenerator for Go
minimock - Powerful mock generation tool for Go programming language