Hey all, I am writing an integration test for a service that contacts another service using graphql ...

# apollo-kotlin

[Ron Aharoni]

Hey all, I am writing an integration test for a service that contacts another service using graphql with apollo client.
What is the best approach for mocking the service? Is a regular http mock server a reasonable approach?
I’ll mention that the test is dockerized. Thanks!

[mbonnin]

MockServer is what we do for apollo-kotlin codebase. It's working great 👍. There's even an apollo-mockserver artifact if you need native/js support

[mbonnin]

If not OkHttp MockWebServer has more features

[Ron Aharoni]

I am also trying to use MockServer. My mock container name is managementmock, so I configure ApolloClient’s server url to be http://managementmock:1080. However, I get a connection refused error, and it seems that for some reason the ip is added to the url.
I attached an image, do you have a clue why that might happen?

[mbonnin]

1080 is the port. IIRC it's assigned automatically, you don't have control over it. You should retrieve the url from the mock server:

ApolloClient.Builder()
.serverUrl(mockServer.url())
.build()

[mbonnin]

Note that url is suspend so if you're in a plain Java project, you'd better use okhttp MockWebServer instead, it'll be easier to work with

[Ron Aharoni]

thanks, it works!