How to fix port for Go-Micro Service

Question

I am running go-micro , But unable to set constant port for my service. Is there any way to assign port to service.

If i am running my service, it gives different port on every execution. i want it to fix.

Answer 1

You can specify the port in the server you must be creating for your micro-service. Since you haven't shared any sample code, here's a proposed solution that might work for you:

 service := micro.NewService(
    micro.Name(serviceName),
    micro.Server(
      server.NewServer(
        server.Name(serviceName),
        server.Address(":8080"),
      ),
    ),
  )

  service.Init()

Let me know if it is not the way you're using go-micro.

Answer 2

Since the go micro version is not mentioned. I have tested the above answer with go-micro version github.com/micro/go-micro/v2 v2.9.0. But there was another issue I have faced, the go-micro server ran perfectly ok with the fixed port. However, when I have executed a gRPC client over the fixed port, the response object was returning panic. Some working on the code and found the below fix

   service := micro.NewService(
      micro.Name(serviceName),
      micro.Version("1.0"),
      micro.Address(":8080"),
  )

With the above fix, the server was set to a fixed port and the gRPC client also responded with success.