Documentation: fix metadata.FromContext example

metadata.FromContext returns additional boolean value. This fixes the example in metadata documentation.
2016-05-12 11:07:32 -07:00
parent 54222d50cc
commit c4adca718a
1 changed files with 2 additions and 1 deletions
--- a/Documentation/grpc-metadata.md
+++ b/Documentation/grpc-metadata.md
@ -70,7 +70,8 @@ Metadata can be retrieved from context using `FromContext`:

 ```go
 func (s *server) SomeRPC(ctx context.Context, in *pb.SomeRequest) (*pb.SomeResponse, err) {
-    md := metadata.FromContext(ctx)
+    md, ok := metadata.FromContext(ctx)
+    // do something with metadata
 }
 ```