| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/golang/protobuf/descriptor | Package descriptor provides functions for obtaining the protocol buffer descriptors of generated Go types. |
| github.com/golang/protobuf/proto | Package proto provides functionality for handling protocol buffer messages. |
| github.com/golang/protobuf/ptypes/wrappers | |
| github.com/grpc-ecosystem/grpc-gateway/runtime | Package runtime contains runtime helper functions used by servers which protoc-gen-grpc-gateway generates. |
| github.com/grpc-ecosystem/grpc-gateway/utilities | Package utilities provides members for internal use in grpc-gateway. |
| google.golang.org/genproto/googleapis/api/annotations | |
| google.golang.org/grpc | Package grpc implements an RPC system called gRPC. |
| google.golang.org/grpc/codes | Package codes defines the canonical error codes used by gRPC. |
| google.golang.org/grpc/grpclog | Package grpclog defines logging for grpc. |
| google.golang.org/grpc/status | Package status implements errors returned by gRPC. |
| io | Package io provides basic interfaces to I/O primitives. |
| math | Package math provides basic constants and mathematical functions. |
| net/http | Package http provides HTTP client and server implementations. |