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Dynamically controlled swagger / openapi mock server for testing purposes – Shopify

I’m looking for a project/tool that is able to get swagger / openapi specifications file as a parameter and generate a mock server that can be controlled programmatically via a REST API interface.

For example – if my API contains the following endpoint: "POST /v1/create"
and I have a swagger specs that describe that API, I would like my mock server to be executed in a way similar to:

mock-server -f swagger.yaml -p 8080

While the server runs, It will be possible to interact with it’s own REST API (on some control interface via a different port) and change the behavior of the running swagger mock server – i.e: change response code, set response content etc’

I would like to use such mock-server as part of my system-tests suite to better verify my service behavior when interacting with other services – without the need to run those ‘real’ services.

I’m looking for something similar in spirit to Shopyify’s ToxiProxy (https://github.com/Shopify/toxiproxy) but with the above capabilities.

Thanks!

Eldad

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2

Answers


  1. 0

    I know I’m a bit late to the party on this one, but for future searchers, MockLab now supports auto-generation of mock APIs from an imported Swagger definition and Swaggerhub webhooks.

    More details here:
    https://www.mocklab.io/blog/mocklab-now-supports-swagger-and-swaggerhub/

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  2. 0

    I believe Specmatic should help you with this.

    mock-server -f swagger.yaml -p 8080

    Specmatic works exactly this way. To start a mock server with an OpenAPI specification file we can run below command.

    specmatic stub service.yaml --port 8080

    Here is the documentation.

    While the server runs, It will be possible to interact with it’s own REST API (on some control interface via a different port) and change the behaviour of the running swagger mock server – i.e: change response code, set response content etc’

    This is also supported. Specmatic has a http interface to which you can post the request and response mappings / expectations. We call this dynamic mocks. Here is the documentation.

    Here is a video on this.

    Disclosure: I am lead dev and CTO at Specmatic

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