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Summary of the issue

Context

I'm trying to use Connect Gateway to programmatically connect to Kubernetes.

Following the official documentation here and using the (assuming) correct name, I get a Bad Request 400 response like below.

Response

BadRequest: 400 GET https://connectgateway.googleapis.com/v1/projects/myproject-1234/locations/us-east1/memberships/cluster-dev-us-e1-aa11ff:generateCredentials?%24alt=json%3Benum-encoding%3Dint: Request contains an invalid argument.

For reference I login as project owner and have enabled services gkeconnect.googleapis.com, gkehub.googleapis.com , anthos.googleapis.com. Corresponding gcloud, kubectl and other python clients work fine (e.g. gkehub).

API client name and version

google-cloud-gke-connect-gateway v0.10.3

Reproduction steps: code

file: main.py

from google.cloud.gkeconnect import gateway_v1

project_id = "myproject-1234"
location = "us-east1"
cluster_name = "cluster-dev-us-e1-aa11ff"
name = f"projects/{project_id}/locations/{location}/memberships/{cluster_name}"

client = gateway_v1.GatewayControlClient()
request = gateway_v1.GenerateCredentialsRequest(name=name)
response = client.generate_credentials(request=request)

Result:

BadRequest: 400 GET https://connectgateway.googleapis.com/v1/projects/myproject-1234/locations/us-east1/memberships/cluster-dev-us-e1-aa11ff:generateCredentials?%24alt=json%3Benum-encoding%3Dint: Request contains an invalid argument.

Same behaviour using for correct region us-east1 or even global.

Corresponding gcloud command works fine:

> gcloud container fleet memberships get-credentials cluster-dev-us-e1-aa11ff --project myproject-1234
Fetching Gateway kubeconfig...
A new kubeconfig entry "connectgateway_myproject-1234_us-east1_cluster-dev-us-e1-aa11ff" has been generated and set as the current context.

A similar gkehub client works fine for the same membership_name

from google.cloud import gkehub_v1

client = gkehub_v1.GkeHubClient()

membership_name = f'projects/{project_id}/locations/{location}/memberships/{cluster_name}'
request = gkehub_v1.GetMembershipRequest(name=membership_name)
response = client.get_membership(request=request)

print(response)

Reproduction steps: supporting files

No response

Reproduction steps: actual results

No response

Reproduction steps: expected results

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OS & version + platform

Ubuntu 24.04

Python environment

Python 3.12.3

Python dependencies

google-cloud-gke-connect-gateway

Additional context

No response