user/internal/controller/api/api.go

package api

import (
	"context"
	"user/api/user"

	"github.com/gogf/gf/contrib/rpc/grpcx/v2"
	"github.com/gogf/gf/v2/errors/gcode"
	"github.com/gogf/gf/v2/errors/gerror"
)

type Controller struct {
	user.UnimplementedUserServer
}

func Register(s *grpcx.GrpcServer) {
	user.RegisterUserServer(s.Server, &Controller{})
}

func (*Controller) SayHello(ctx context.Context, req *user.HelloReq) (res *user.HelloRes, err error) {
	return nil, gerror.NewCode(gcode.CodeNotImplemented)
}