Testing out GraphQL API

Integration testing subscriptions

• We need a client which connects to my subscription endpoint.
• Read graphql-ws documentation to see how to create a client.
  • graphql-ws is a GraphQL over WebSocket spec compliant server and client.

• Create a websocket client helper, for the written version of it you can find it in apps/server-statistics-e2e/src/support:

  

• Then the rest is your normal tests. You can see how to write one in e2e tests for apps/server-statistics-e2e.