[Vector Search] Can not access to PublicEndpoint by MatchService. #23535

Environment details

• Ruby version: 3.2.2
• Rails version: 7.1.1
• Gem name and version: google-cloud-ai_platform-v1 (0.33.0)

Steps to reproduce

1. Create index at Vector Search
2. Create index endpoint
3. Deploy index to index endpoint with public
4. Get public endpoint uri like ( 1111111111.asia-east1-833661946063.vdb.vertexai.goog )
5. Access service to use Google::Cloud::AIPlatform::V1::MatchService::Client class
   • config.endpoint : 1111111111.asia-east1-833661946063.vdb.vertexai.goog
6. Use method find_neighbors
   • deployed_index_id, index_endpoint, queries
7. Google::Cloud::UnknownError (2:Stream removed. debug_error_string:{UNKNOWN:Error received from peer {grpc_message:"Stream removed", grpc_status:2, created_time:"2023-11-10T03:11:25.970084135+00:00"}}):

comment

I can find Deployed Index parameter is public_access_enabled: false.

But I create index by cURL command below.

curl -X POST \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $(gcloud auth print-access-token)" \
  "https://us-central1-aiplatform.googleapis.com/v1/projects/my-own-project-id/locations/us-central1/indexEndpoints" \
  -d '{"display_name": "public-endpoint-name", "publicEndpointEnabled": true}' # it's true!

So it was created, but public_endpoint_enabled is false...

IndexEndpointService::Client got below.

A request was succeed by Postman to use gRPC request.

Do you know how to use public endpoint by gRPC access?

Tries

• ✅ REST request by cURL
• ✅ gRPC request by Postman
• ❌ gRPC request by google-cloud-ai_platform-v1