Inability to list workflow executions with test environment

Community Support
1

Hello,

I am designing an endpoint to list some information about executions of various workflows. This is available in the example: io.temporal.samples.listworkflows. When I run this code using a TestWorkflowEnvironment I get the exception:


io.grpc.StatusRuntimeException: UNIMPLEMENTED: Method temporal.api.workflowservice.v1.WorkflowService/ListWorkflowExecutions is unimplemented
	at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:271)
	at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:252)
...

I wonder if there is a mode in which I must put the TestWorkflowEnvironment in order for this to work or if ListWorkflowExecutionsResponse is not supported when using TestWorkflowEnvironment?

Thanks,

Matt

2

Any observations welcome including “why would you want that” or “it works for me”… Thanks :slight_smile:

3

Hello @Matthew_Gerring

The method is not implemented for the environment. You can use ListOpenWorkflowExecutionsRequest or LisClosedWorkflowExecutionsRequest instead.

“why would you want that”?

Antonio

4

I want to have endpoints for returning all the temporal queue information in order to build my own queue UI. I do not want to expose temporal endpoints on the internet and prefer to wrap the functionality. Then in order to test this, I need to start a test temporal environment. If you can think of a better way, very interested to know.

5

It makse sense @Matthew_Gerring

There is an open issue to support listworkflowexecutions in test environment Support listWorkflowExecutions in test server · Issue #1693 · temporalio/sdk-java · GitHub