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Added camelCase Example #751

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Sep 10, 2018
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Added camelCase Example #751

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8 changes: 8 additions & 0 deletions docs/_docs/customizingyourgateway.md
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Expand Up @@ -7,6 +7,7 @@ order: 101
# Customizing your gateway

## Message serialization
### Custom serializer

You might want to serialize request/response messages in MessagePack instead of JSON, for example.

Expand All @@ -20,6 +21,13 @@ You might want to serialize request/response messages in MessagePack instead of

You can see [the default implementation for JSON](https://github.com/grpc-ecosystem/grpc-gateway/blob/master/runtime/marshal_jsonpb.go) for reference.

### Using camelCase for JSON

The protocol buffer compiler generates camelCase JSON tags that can be used with jsonpb package. By default jsonpb Marshaller uses `OrigName: true` which uses the exact case used in the proto files. To use camelCase for the JSON representation,
```go
mux := runtime.NewServeMux(runtime.WithMarshalerOption(runtime.MIMEWildcard, &runtime.JSONPb{OrigName:false}))
```

## Mapping from HTTP request headers to gRPC client metadata
You might not like [the default mapping rule](http://godoc.org/github.com/grpc-ecosystem/grpc-gateway/runtime#DefaultHeaderMatcher) and might want to pass through all the HTTP headers, for example.

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