diff --git a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/convert.go b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/convert.go
index 1af5cc4eb..f89318641 100644
--- a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/convert.go
+++ b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/convert.go
@@ -2,6 +2,10 @@ package runtime
 
 import (
 	"strconv"
+
+	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/ptypes/duration"
+	"github.com/golang/protobuf/ptypes/timestamp"
 )
 
 // String just returns the given string.
@@ -56,3 +60,17 @@ func Uint32(val string) (uint32, error) {
 	}
 	return uint32(i), nil
 }
+
+// Timestamp converts the given RFC3339 formatted string into a timestamp.Timestamp.
+func Timestamp(val string) (*timestamp.Timestamp, error) {
+	var r *timestamp.Timestamp
+	err := jsonpb.UnmarshalString(val, r)
+	return r, err
+}
+
+// Duration converts the given string into a timestamp.Duration.
+func Duration(val string) (*duration.Duration, error) {
+	var r *duration.Duration
+	err := jsonpb.UnmarshalString(val, r)
+	return r, err
+}
diff --git a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/handler.go b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/handler.go
index ae6a5d551..1770b8534 100644
--- a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/handler.go
+++ b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/handler.go
@@ -34,34 +34,47 @@ func ForwardResponseStream(ctx context.Context, mux *ServeMux, marshaler Marshal
 	w.Header().Set("Transfer-Encoding", "chunked")
 	w.Header().Set("Content-Type", marshaler.ContentType())
 	if err := handleForwardResponseOptions(ctx, w, nil, opts); err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
+		HTTPError(ctx, mux, marshaler, w, req, err)
 		return
 	}
-	w.WriteHeader(http.StatusOK)
-	f.Flush()
+
+	var delimiter []byte
+	if d, ok := marshaler.(Delimited); ok {
+		delimiter = d.Delimiter()
+	} else {
+	    delimiter = []byte("\n")
+	}
+
+	var wroteHeader bool
 	for {
 		resp, err := recv()
 		if err == io.EOF {
 			return
 		}
 		if err != nil {
-			handleForwardResponseStreamError(marshaler, w, err)
+			handleForwardResponseStreamError(wroteHeader, marshaler, w, err)
 			return
 		}
 		if err := handleForwardResponseOptions(ctx, w, resp, opts); err != nil {
-			handleForwardResponseStreamError(marshaler, w, err)
+			handleForwardResponseStreamError(wroteHeader, marshaler, w, err)
 			return
 		}
 
 		buf, err := marshaler.Marshal(streamChunk(resp, nil))
 		if err != nil {
 			grpclog.Printf("Failed to marshal response chunk: %v", err)
+			handleForwardResponseStreamError(wroteHeader, marshaler, w, err)
 			return
 		}
 		if _, err = w.Write(buf); err != nil {
 			grpclog.Printf("Failed to send response chunk: %v", err)
 			return
 		}
+		wroteHeader = true
+		if _, err = w.Write(delimiter); err != nil {
+			grpclog.Printf("Failed to send delimiter chunk: %v", err)
+			return
+		}
 		f.Flush()
 	}
 }
@@ -134,13 +147,20 @@ func handleForwardResponseOptions(ctx context.Context, w http.ResponseWriter, re
 	return nil
 }
 
-func handleForwardResponseStreamError(marshaler Marshaler, w http.ResponseWriter, err error) {
+func handleForwardResponseStreamError(wroteHeader bool, marshaler Marshaler, w http.ResponseWriter, err error) {
 	buf, merr := marshaler.Marshal(streamChunk(nil, err))
 	if merr != nil {
 		grpclog.Printf("Failed to marshal an error: %v", merr)
 		return
 	}
-	if _, werr := fmt.Fprintf(w, "%s\n", buf); werr != nil {
+	if !wroteHeader {
+		s, ok := status.FromError(err)
+		if !ok {
+			s = status.New(codes.Unknown, err.Error())
+		}
+		w.WriteHeader(HTTPStatusFromCode(s.Code()))
+	}
+	if _, werr := w.Write(buf); werr != nil {
 		grpclog.Printf("Failed to notify error to client: %v", werr)
 		return
 	}
diff --git a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_json.go b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_json.go
index 0acd2ca29..b3a21418b 100644
--- a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_json.go
+++ b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_json.go
@@ -35,3 +35,8 @@ func (j *JSONBuiltin) NewDecoder(r io.Reader) Decoder {
 func (j *JSONBuiltin) NewEncoder(w io.Writer) Encoder {
 	return json.NewEncoder(w)
 }
+
+// Delimiter for newline encoded JSON streams.
+func (j *JSONBuiltin) Delimiter() []byte {
+	return []byte("\n")
+}
diff --git a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_jsonpb.go b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_jsonpb.go
index 49f13f7fc..d42cc593e 100644
--- a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_jsonpb.go
+++ b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_jsonpb.go
@@ -182,3 +182,8 @@ type protoEnum interface {
 }
 
 var typeProtoMessage = reflect.TypeOf((*proto.Message)(nil)).Elem()
+
+// Delimiter for newline encoded JSON streams.
+func (j *JSONPb) Delimiter() []byte {
+	return []byte("\n")
+}
diff --git a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_proto.go b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_proto.go
new file mode 100644
index 000000000..f65d1a267
--- /dev/null
+++ b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_proto.go
@@ -0,0 +1,62 @@
+package runtime
+
+import (
+	"io"
+
+	"errors"
+	"github.com/golang/protobuf/proto"
+	"io/ioutil"
+)
+
+// ProtoMarshaller is a Marshaller which marshals/unmarshals into/from serialize proto bytes
+type ProtoMarshaller struct{}
+
+// ContentType always returns "application/octet-stream".
+func (*ProtoMarshaller) ContentType() string {
+	return "application/octet-stream"
+}
+
+// Marshal marshals "value" into Proto
+func (*ProtoMarshaller) Marshal(value interface{}) ([]byte, error) {
+	message, ok := value.(proto.Message)
+	if !ok {
+		return nil, errors.New("unable to marshal non proto field")
+	}
+	return proto.Marshal(message)
+}
+
+// Unmarshal unmarshals proto "data" into "value"
+func (*ProtoMarshaller) Unmarshal(data []byte, value interface{}) error {
+	message, ok := value.(proto.Message)
+	if !ok {
+		return errors.New("unable to unmarshal non proto field")
+	}
+	return proto.Unmarshal(data, message)
+}
+
+// NewDecoder returns a Decoder which reads proto stream from "reader".
+func (marshaller *ProtoMarshaller) NewDecoder(reader io.Reader) Decoder {
+	return DecoderFunc(func(value interface{}) error {
+		buffer, err := ioutil.ReadAll(reader)
+		if err != nil {
+			return err
+		}
+		return marshaller.Unmarshal(buffer, value)
+	})
+}
+
+// NewEncoder returns an Encoder which writes proto stream into "writer".
+func (marshaller *ProtoMarshaller) NewEncoder(writer io.Writer) Encoder {
+	return EncoderFunc(func(value interface{}) error {
+		buffer, err := marshaller.Marshal(value)
+		if err != nil {
+			return err
+		}
+		_, err = writer.Write(buffer)
+		if err != nil {
+			return err
+		}
+
+		return nil
+	})
+}
diff --git a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler.go b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler.go
index 6d434f13c..98fe6e88a 100644
--- a/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler.go
+++ b/cmd/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler.go
@@ -40,3 +40,9 @@ type EncoderFunc func(v interface{}) error
 
 // Encode delegates invocations to the underlying function itself.
 func (f EncoderFunc) Encode(v interface{}) error { return f(v) }
+
+// Delimited defines the streaming delimiter.
+type Delimited interface {
+	// Delimiter returns the record seperator for the stream.
+	Delimiter() []byte
+}
diff --git a/glide.lock b/glide.lock
index 0188e0d68..bc499956f 100644
--- a/glide.lock
+++ b/glide.lock
@@ -1,5 +1,5 @@
-hash: 23d3b011a2e95e7c285287f62d6c7404ee42ccf6f81055cd24ab58da51a10f42
-updated: 2017-12-18T15:54:23.990881-08:00
+hash: 717378e57448533f1e2b054fe152b3f51e5e397292527c82ab24fb2c6c7d2a8f
+updated: 2018-01-09T12:39:45.249170188-08:00
 imports:
 - name: github.com/beorn7/perks
   version: 4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9
@@ -61,7 +61,7 @@ imports:
 - name: github.com/grpc-ecosystem/go-grpc-prometheus
   version: 0dafe0d496ea71181bf2dd039e7e3f44b6bd11a7
 - name: github.com/grpc-ecosystem/grpc-gateway
-  version: 8cc3a55af3bcf171a1c23a90c4df9cf591706104
+  version: 07f5e79768022f9a3265235f0db4ac8c3f675fec
   subpackages:
   - runtime
   - runtime/internal
diff --git a/glide.yaml b/glide.yaml
index 20c49b3af..46fa0e79e 100644
--- a/glide.yaml
+++ b/glide.yaml
@@ -45,7 +45,7 @@ import:
 - package: github.com/google/btree
   version: 925471ac9e2131377a91e1595defec898166fe49
 - package: github.com/grpc-ecosystem/grpc-gateway
-  version: v1.3.0
+  version: v1.3.1
   subpackages:
   - runtime
   - runtime/internal