switch multipro example to a different UUID package

We already have this one imported into GX. Saves the effort of importing a
different one.

examples/multipro/echo.go

@@ -8,11 +8,11 @@ import (
 
 	inet "github.com/libp2p/go-libp2p-net"
 
-	uuid "github.com/google/uuid"
 	assert "github.com/ipfs/go-ipfs/thirdparty/assert"
 	"github.com/libp2p/go-libp2p-host"
 	p2p "github.com/libp2p/go-libp2p/examples/multipro/pb"
 	protobufCodec "github.com/multiformats/go-multicodec/protobuf"
+	uuid "github.com/satori/go.uuid"
 )
 
 // pattern: /protocol-name/request-or-response-message/version
@@ -125,7 +125,7 @@ func (e *EchoProtocol) Echo(host host.Host) bool {
 
 	// create message data
 	req := &p2p.EchoRequest{
-		MessageData: e.node.NewMessageData(uuid.New().String(), false),
+		MessageData: e.node.NewMessageData(uuid.Must(uuid.NewV4()).String(), false),
 		Message:     fmt.Sprintf("Echo from %s", e.node.ID())}
 
 	signature, err := e.node.signProtoMessage(req)

examples/multipro/ping.go

@@ -6,11 +6,11 @@ import (
 	"fmt"
 	"log"
 
-	uuid "github.com/google/uuid"
 	"github.com/libp2p/go-libp2p-host"
 	inet "github.com/libp2p/go-libp2p-net"
 	p2p "github.com/libp2p/go-libp2p/examples/multipro/pb"
 	protobufCodec "github.com/multiformats/go-multicodec/protobuf"
+	uuid "github.com/satori/go.uuid"
 )
 
 // pattern: /protocol-name/request-or-response-message/version
@@ -116,7 +116,7 @@ func (p *PingProtocol) Ping(host host.Host) bool {
 	log.Printf("%s: Sending ping to: %s....", p.node.ID(), host.ID())
 
 	// create message data
-	req := &p2p.PingRequest{MessageData: p.node.NewMessageData(uuid.New().String(), false),
+	req := &p2p.PingRequest{MessageData: p.node.NewMessageData(uuid.Must(uuid.NewV4()).String(), false),
 		Message: fmt.Sprintf("Ping from %s", p.node.ID())}
 
 	// sign the data

package.json

@@ -287,6 +287,12 @@
       "hash": "QmRDePEiL4Yupq5EkcK3L3ko3iMgYaqUdLu7xc1kqs7dnV",
       "name": "go-multicodec",
       "version": "0.1.5"
+    },
+    {
+      "author": "satori",
+      "hash": "QmcBWojPoNh4qm7zvv4qiepvCnnc7ALS9qcp7TNwwxT1gT",
+      "name": "go.uuid",
+      "version": "1.1.0"
     }
   ],
   "gxVersion": "0.4.0",