go-zero/example/rpc/server/unary/etc/config1.json

{
	"Name": "rpc.unary",
	"Log": {
		"Mode": "volume"
	},
    "ListenOn": "localhost:3457",
    "Etcd": {
        "Hosts": [
            "localhost:2379"
        ],
        "Key": "rpcx"
    }
}