go auth_error ai_generated true

rpc error: code = Unauthenticated desc = missing credentials

ID: go/grpc-unauthenticated-missing-credentials

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
0Evidence
2024-11-20First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1.56.x active — — —
1.57.x active — — —

Root Cause

The client did not provide any authentication credentials in the request metadata.

generic

中文

客户端未在请求元数据中提供任何身份验证凭据。

Workarounds

  1. 100% success 
    md := metadata.Pairs("authorization", "Bearer mytoken"); ctx := metadata.NewOutgoingContext(context.Background(), md)
  2. 90% success 
    creds := credentials.NewClientTLSFromCert(nil, ""); conn, err := grpc.Dial(address, grpc.WithTransportCredentials(creds))
  3. 85% success 
    interceptor := func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error { ctx = metadata.AppendToOutgoingContext(ctx, "authorization", "Bearer mytoken"); return invoker(ctx, method, req, reply, cc, opts...) }

Dead Ends

Common approaches that don't work:

  1. Sending an empty token or user/pass. 90% fail

    Server still sees no valid credentials.

  2. Removing auth checks. 80% fail

    Security risk.

  3. Not adding any metadata. 100% fail

    Same error will occur.