Etcd: Maybe clientv3/naming package has depend issue

[Wang-Kai]

my code

package main

import (
    "context"
    "log"

    "github.com/coreos/etcd/clientv3"
    etcdnaming "github.com/coreos/etcd/clientv3/naming"
    "google.golang.org/grpc"
)

func main() {
    cli, err := clientv3.NewFromURL("http://localhost:2379")
    if err != nil {
        log.Fatal(err)
    }

    r := &etcdnaming.GRPCResolver{Client: cli}
    b := grpc.RoundRobin(r)

    conn, err := grpc.Dial("user", grpc.WithInsecure(), grpc.WithBalancer(b))
    if err != nil {
        log.Fatal(err)
    }

    ....
}

Issue

cannot use r (type *"github.com/coreos/etcd/clientv3/naming".GRPCResolver) as type "google.golang.org/grpc/naming".Resolver in argument to "google.golang.org/grpc".RoundRobin:

github.com/coreos/etcd/clientv3/naming".GRPCResolver does not implement "google.golang.org/grpc/naming".Resolver (wrong type for Resolve method)
        have Resolve(string) ("github.com/coreos/etcd/vendor/google.golang.org/grpc/naming".Watcher, error)
        want Resolve(string) ("google.golang.org/grpc/naming".Watcher, error)

What awful the package manager is in golang , do you know how can i solve it ?

[hexfusion]

hi @Wang-Kai per the Clientv3 get started guide

"For full compatibility, it is recommended to vendor builds using etcd's vendored packages, using tools like golang/dep"

To do this you need to install dep https://github.com/golang/dep and place your project code within $GOPATH/src.

So for example my $GOPATH looks like this /home/sam/go:/home/sam/dev/go

I create a project with your code example /home/sam/dev/go/src/clientv3/main.go

$ cd /home/sam/dev/go/src/clientv3
$ dep init
$ ls
Gopkg.lock  Gopkg.toml  main.go vendor

At this point you have a vendor folder with all the nessisary packages as well as a populated Gopkg.lock Gopkg.toml file. From here you can go build and it should work as expected. It is a few extra steps but once you used to it dep is a nice tool.

I hope that helps if this answers your question please close issue.

ref: https://github.com/golang/dep/blob/master/docs/new-project.md

[tobeabme]

@Wang-Kai Have you solved this problem?