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77 lines
3.9 KiB
77 lines
3.9 KiB
/* |
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* |
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* Copyright 2016 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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package grpc |
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import ( |
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"context" |
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) |
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// UnaryInvoker is called by UnaryClientInterceptor to complete RPCs. |
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type UnaryInvoker func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, opts ...CallOption) error |
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// UnaryClientInterceptor intercepts the execution of a unary RPC on the client. invoker is the handler to complete the RPC |
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// and it is the responsibility of the interceptor to call it. |
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// This is an EXPERIMENTAL API. |
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type UnaryClientInterceptor func(ctx context.Context, method string, req, reply interface{}, cc *ClientConn, invoker UnaryInvoker, opts ...CallOption) error |
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// Streamer is called by StreamClientInterceptor to create a ClientStream. |
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type Streamer func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (ClientStream, error) |
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// StreamClientInterceptor intercepts the creation of ClientStream. It may return a custom ClientStream to intercept all I/O |
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// operations. streamer is the handler to create a ClientStream and it is the responsibility of the interceptor to call it. |
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// This is an EXPERIMENTAL API. |
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type StreamClientInterceptor func(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, streamer Streamer, opts ...CallOption) (ClientStream, error) |
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// UnaryServerInfo consists of various information about a unary RPC on |
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// server side. All per-rpc information may be mutated by the interceptor. |
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type UnaryServerInfo struct { |
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// Server is the service implementation the user provides. This is read-only. |
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Server interface{} |
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// FullMethod is the full RPC method string, i.e., /package.service/method. |
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FullMethod string |
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} |
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// UnaryHandler defines the handler invoked by UnaryServerInterceptor to complete the normal |
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// execution of a unary RPC. If a UnaryHandler returns an error, it should be produced by the |
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// status package, or else gRPC will use codes.Unknown as the status code and err.Error() as |
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// the status message of the RPC. |
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type UnaryHandler func(ctx context.Context, req interface{}) (interface{}, error) |
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// UnaryServerInterceptor provides a hook to intercept the execution of a unary RPC on the server. info |
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// contains all the information of this RPC the interceptor can operate on. And handler is the wrapper |
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// of the service method implementation. It is the responsibility of the interceptor to invoke handler |
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// to complete the RPC. |
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type UnaryServerInterceptor func(ctx context.Context, req interface{}, info *UnaryServerInfo, handler UnaryHandler) (resp interface{}, err error) |
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// StreamServerInfo consists of various information about a streaming RPC on |
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// server side. All per-rpc information may be mutated by the interceptor. |
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type StreamServerInfo struct { |
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// FullMethod is the full RPC method string, i.e., /package.service/method. |
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FullMethod string |
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// IsClientStream indicates whether the RPC is a client streaming RPC. |
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IsClientStream bool |
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// IsServerStream indicates whether the RPC is a server streaming RPC. |
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IsServerStream bool |
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} |
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// StreamServerInterceptor provides a hook to intercept the execution of a streaming RPC on the server. |
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// info contains all the information of this RPC the interceptor can operate on. And handler is the |
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// service method implementation. It is the responsibility of the interceptor to invoke handler to |
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// complete the RPC. |
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type StreamServerInterceptor func(srv interface{}, ss ServerStream, info *StreamServerInfo, handler StreamHandler) error
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