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The first step in creating a Pact between a consumer and provider is generating a contract on the consumer side. This contract will encompass the entirety of expected requests and return values between the two services. This includes paths of API endpoints, HTTP status codes, and response bodies of these API calls. A contract can contain as many interactions as deemed fit to ensure validity between the consumer and provider. The Pact Foundation package will produce this contract, and thus we’re given flexibility in the testing framework we want to implement in our codebase. These contracts will be fed into a general Pact stub server ran on a Docker container with a specialized image, detailed here. These contracts will be of further use to us when we integrate tests into our provider service.
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