Move context to metadata

examples/server/handler/example.go

@@ -2,8 +2,8 @@ package handler
 
 import (
 	log "github.com/golang/glog"
-	c "github.com/micro/go-micro/context"
 	example "github.com/micro/go-micro/examples/server/proto/example"
+	"github.com/micro/go-micro/metadata"
 	"github.com/micro/go-micro/server"
 
 	"golang.org/x/net/context"
@@ -12,7 +12,7 @@ import (
 type Example struct{}
 
 func (e *Example) Call(ctx context.Context, req *example.Request, rsp *example.Response) error {
-	md, _ := c.GetMetadata(ctx)
+	md, _ := metadata.FromContext(ctx)
 	log.Infof("Received Example.Call request with metadata: %v", md)
 	rsp.Msg = server.DefaultOptions().Id + ": Hello " + req.Name
 	return nil