{"id":43595,"date":"2023-06-07T22:49:14","date_gmt":"2023-09-21T22:39:56","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e6%95%b4%e5%a5%97-go-grpc-middleware%e3%80%82\/"},"modified":"2024-04-30T07:47:24","modified_gmt":"2024-04-29T23:47:24","slug":"%e5%b0%9d%e8%af%95%e6%95%b4%e5%a5%97-go-grpc-middleware%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e6%95%b4%e5%a5%97-go-grpc-middleware%e3%80%82\/","title":{"rendered":"\u5c1d\u8bd5\u6574\u5957 go-grpc-middleware"},"content":{"rendered":"

\u5728gRPC\u4e2d\uff0c\u53ef\u4ee5\u62e6\u622a\u5728\u51fd\u6570\u6267\u884c\u65f6\u6307\u5b9a\u7684\u5904\u7406\u3002\u5728\u4f7f\u7528golang\u521b\u5efagRPC\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u4f7f\u7528\u8fd9\u79cd\u62e6\u622a\u529f\u80fd\u975e\u5e38\u65b9\u4fbf\u7684\u4e2d\u95f4\u4ef6\u662fgo-grpc-middleware\u3002<\/p>\n

\u6211\u60f3\u8bd5\u8bd5\u8fd9\u4e2ago-grpc-middleware\u7684\u6240\u6709\u529f\u80fd\u3002<\/p>\n

\u8fd9\u6b21\u6211\u4eec\u5236\u4f5c\u7684\u793a\u4f8b\u5e94\u7528\u7a0b\u5e8f\u5982\u4e0b\u3002
\nhttps:\/\/github.com\/morix1500\/sample-go-grpc-middleware<\/p>\n

\u51c6\u5907\u597d<\/h2>\n

\u9996\u5148\uff0c\u6211\u4eec\u6765\u521b\u5efa\u4e00\u4e2agRPC\u670d\u52a1\u5668\u3002<\/p>\n

syntax<\/span> =<\/span> \"proto3\"<\/span>;<\/span>\r\n\r\npackage<\/span> hello<\/span>;<\/span>\r\n\r\nmessage<\/span> HelloRequest<\/span> {<\/span>\r\n  string<\/span> name<\/span> =<\/span> 1<\/span>;<\/span>\r\n}<\/span>\r\n\r\nmessage<\/span> HelloResponse<\/span> {<\/span>\r\n  string<\/span> message<\/span> =<\/span> 1<\/span>;<\/span>\r\n}<\/span>\r\n\r\nservice<\/span> HelloService<\/span> {<\/span>\r\n  rpc<\/span> Hello<\/span>(<\/span>HelloRequest<\/span>)<\/span> returns<\/span> (<\/span>HelloResponse<\/span>)<\/span> {}<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u751f\u6210go\u6587\u4ef6\u3002<\/p>\n
docker run --rm<\/span> -v<\/span> $(<\/span>pwd<\/span>)<\/span>:$(<\/span>pwd<\/span>)<\/span> \\<\/span>\r\n-w<\/span> $(<\/span>pwd<\/span>)<\/span> znly\/protoc:0.4.0 \\<\/span>\r\n-I<\/span> .\/proto \\<\/span>\r\n--go_out<\/span>=<\/span>plugins<\/span>=<\/span>grpc:.\/proto\/ \\<\/span>\r\nproto\/hello.proto\r\n<\/code><\/pre>\n
\u8ba9\u6211\u4eec\u4f7f\u7528golang\u7f16\u5199\u670d\u52a1\u5668\u4ee3\u7801\u3002<\/p>\n
package<\/span> main<\/span>\r\n\r\nimport<\/span> (<\/span>\r\n        \"context\"<\/span>\r\n        pb<\/span> \"github.com\/morix1500\/sample-go-grpc-middleware\/proto\"<\/span>\r\n        \"google.golang.org\/grpc\"<\/span>\r\n        \"net\"<\/span>\r\n)<\/span>\r\n\r\ntype<\/span> HelloService<\/span> struct<\/span>{}<\/span>\r\n\r\nfunc<\/span> (<\/span>h<\/span> HelloService<\/span>)<\/span> Hello<\/span>(<\/span>ctx<\/span> context<\/span>.<\/span>Context<\/span>,<\/span> in<\/span> *<\/span>pb<\/span>.<\/span>HelloRequest<\/span>)<\/span> (<\/span>*<\/span>pb<\/span>.<\/span>HelloResponse<\/span>,<\/span> error<\/span>)<\/span> {<\/span>\r\n        return<\/span> &<\/span>pb<\/span>.<\/span>HelloResponse<\/span>{<\/span>\r\n                Message<\/span>:<\/span> \"Hello, \"<\/span> +<\/span> in<\/span>.<\/span>Name<\/span>,<\/span>\r\n        },<\/span> nil<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n        s<\/span> :=<\/span> grpc<\/span>.<\/span>NewServer<\/span>()<\/span>\r\n        pb<\/span>.<\/span>RegisterHelloServiceServer<\/span>(<\/span>s<\/span>,<\/span> HelloService<\/span>{})<\/span>\r\n\r\n        lis<\/span>,<\/span> err<\/span> :=<\/span> net<\/span>.<\/span>Listen<\/span>(<\/span>\"tcp\"<\/span>,<\/span> \":5000\"<\/span>)<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n                panic<\/span>(<\/span>err<\/span>)<\/span>\r\n        }<\/span>\r\n        if<\/span> err<\/span> :=<\/span> s<\/span>.<\/span>Serve<\/span>(<\/span>lis<\/span>);<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n                panic<\/span>(<\/span>err<\/span>)<\/span>\r\n        }<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
\u6700\u540e\uff0c\u542f\u52a8\u5e76\u4f7f\u7528grpcurl\u8fdb\u884c\u64cd\u4f5c\u9a8c\u8bc1\u3002<\/p>\n
$ <\/span>go run main.go\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> localhost:5000 hello.HelloService\/Hello\r\n{<\/span>\r\n  \"message\"<\/span>: \"Hello, Morix\"<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u786e\u8ba4\u52a8\u4f5c\u5b8c\u6210\u3002<\/p>\n
\u5c1d\u8bd5\u4e00\u4e0b<\/h2>\n
\u5728\u64b0\u5199\u672c\u6587\u65f6\uff0cgo-grpc-middleware\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u529f\u80fd\u3002<\/p>\n
    \n
  • \n
      grpc_auth – a customizable (via AuthFunc) piece of auth middleware<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          grpc_ctxtags – a library that adds a Tag map to context, with data populated from request body<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \n
          • \n
              grpc_zap – integration of zap logging library into gRPC handlers.<\/ul>\n<\/li>\n<\/ul>\n
               <\/p>\n
                \n
              • \n
                  grpc_logrus – integration of logrus logging library into gRPC handlers.<\/ul>\n<\/li>\n<\/ul>\n
                   <\/p>\n
                    \n
                  • \n
                      grpc_prometheus – Prometheus client-side and server-side monitoring middleware<\/ul>\n<\/li>\n<\/ul>\n
                       <\/p>\n
                        \n
                      • \n
                          otgrpc – OpenTracing client-side and server-side interceptors<\/ul>\n<\/li>\n<\/ul>\n
                           <\/p>\n
                            \n
                          • \n
                              grpc_opentracing – OpenTracing client-side and server-side interceptors with support for streaming and handler-returned tags<\/ul>\n<\/li>\n<\/ul>\n
                               <\/p>\n
                                \n
                              • \n
                                  grpc_validator – codegen inbound message validation from .proto options<\/ul>\n<\/li>\n<\/ul>\n
                                   <\/p>\n
                                    grpc_recovery – turn panics into gRPC errors<\/ul>\n
                                    gRPC\u8eab\u4efd\u9a8c\u8bc1<\/h3>\n
                                    \u5982\u679c\u60f3\u5728\u6267\u884c\u5904\u7406\u4e4b\u524d\u8fdb\u884c\u8ba4\u8bc1\u5904\u7406\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e2d\u95f4\u4ef6\u3002\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8ba4\u8bc1\u4ee4\u724c\uff0c\u5e76\u7f16\u5199\u5904\u7406\u7a0b\u5e8f\u4ee5\u9a8c\u8bc1\u662f\u5426\u4e3a\u9884\u671f\u7684\u4ee4\u724c\uff0c\u5982\u679c\u4e0d\u662f\u5219\u629b\u51fa\u8ba4\u8bc1\u9519\u8bef\u3002<\/p>\n
                                    \/\/ NewServer\u306e\u3068\u3053\u308d\u3067Interceptor\u3092\u8a2d\u5b9a\u3057\u307e\u3059<\/span>\r\ns<\/span> :=<\/span> grpc<\/span>.<\/span>NewServer<\/span>(<\/span>\r\n                grpc<\/span>.<\/span>UnaryInterceptor<\/span>(<\/span>grpc_auth<\/span>.<\/span>UnaryServerInterceptor<\/span>(<\/span>authFunc<\/span>)),<\/span>\r\n        )<\/span>\r\n---<\/span>\r\n\r\n\/\/ \u8a8d\u8a3c\u7528\u306e\u95a2\u6570<\/span>\r\nfunc<\/span> authFunc<\/span>(<\/span>ctx<\/span> context<\/span>.<\/span>Context<\/span>)<\/span> (<\/span>context<\/span>.<\/span>Context<\/span>,<\/span> error<\/span>)<\/span> {<\/span>\r\n        token<\/span>,<\/span> err<\/span> :=<\/span> grpc_auth<\/span>.<\/span>AuthFromMD<\/span>(<\/span>ctx<\/span>,<\/span> \"bearer\"<\/span>)<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n                return<\/span> nil<\/span>,<\/span> err<\/span>\r\n        }<\/span>\r\n        fmt<\/span>.<\/span>Printf<\/span>(<\/span>\"receive token: %s<\/span>\\n<\/span>\"<\/span>,<\/span> token<\/span>)<\/span>\r\n        if<\/span> token<\/span> !=<\/span> \"hoge\"<\/span> {<\/span>\r\n                return<\/span> nil<\/span>,<\/span> grpc<\/span>.<\/span>Errorf<\/span>(<\/span>codes<\/span>.<\/span>Unauthenticated<\/span>,<\/span> \"invalid token\"<\/span>)<\/span>\r\n        }<\/span>\r\n        newCtx<\/span> :=<\/span> context<\/span>.<\/span>WithValue<\/span>(<\/span>ctx<\/span>,<\/span> \"result\"<\/span>,<\/span> \"ok\"<\/span>)<\/span>\r\n        return<\/span> newCtx<\/span>,<\/span> nil<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                    \u6211\u4f1a\u5c1d\u8bd5\u5c06Bearer Token\u5d4c\u5165\u5230Authorization\u5934\u4e2d\uff0c\u5982\u679cToken\u4e3a”hoge”\uff0c\u5219\u8bf7\u6c42\u5c06\u6210\u529f\u3002<\/p>\n
                                    # \u30d8\u30c3\u30c0\u30fc\u306a\u3057<\/span>\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> localhost:5000 hello.HelloService\/Hello\r\nERROR:\r\n  Code: Unauthenticated\r\n  Message: Request unauthenticated with bearer\r\n\r\n# \u30d8\u30c3\u30c0\u30fc\u3042\u308a\u3001token\u9593\u9055\u3044<\/span>\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> -H<\/span> \"Authorization: bearer fuga\"<\/span> localhost:5000 hello.HelloService\/Hello\r\nERROR:\r\n  Code: Unauthenticated\r\n  Message: invalid token\r\n\r\n# \u30d8\u30c3\u30c0\u30fc\u3042\u308a(\u6b63\u5e38)<\/span>\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> -H<\/span> \"Authorization: bearer hoge\"<\/span> localhost:5000 hello.HelloService\/Hello\r\n{<\/span>\r\n  \"message\"<\/span>: \"Hello, Morix\"<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
                                    \u8fd9\u6837\u4e00\u6765\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u7f16\u5199\u901a\u7528\u7684\u8eab\u4efd\u9a8c\u8bc1\u5904\u7406\u7a0b\u5e8f\u3002<\/p>\n
                                    grpc_ctxtags \u63a5\u53e3\u5e93<\/h3>\n
                                    \u8fd9\u4e2a\u5c06\u8bf7\u6c42\u4fe1\u606f\u5d4c\u5165\u5230\u4e0a\u4e0b\u6587\u7684\u5143\u6570\u636e\u4e2d\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u4e0e\u5176\u4ed6\u4e2d\u95f4\u4ef6\u4e00\u8d77\u4f7f\u7528\u3002<\/p>\n
                                    grpc_zap \u53ef\u4ee5\u88ab\u8f6c\u8ff0\u4e3a gRPC Zap\u3002<\/h3>\n
                                    Zap\u662f\u4e00\u4e2a\u7528\u4e8e\u5c06Logger\u8bbe\u7f6e\u4e3agRPC\u65e5\u5fd7\u8bb0\u5f55\u5668\u5e76\u8f93\u51fa\u65e5\u5fd7\u7684\u4e2d\u95f4\u4ef6\u3002<\/p>\n
                                            opts<\/span> :=<\/span> []<\/span>grpc_zap<\/span>.<\/span>Option<\/span>{<\/span>\r\n                grpc_zap<\/span>.<\/span>WithDurationField<\/span>(<\/span>func<\/span>(<\/span>duration<\/span> time<\/span>.<\/span>Duration<\/span>)<\/span> zapcore<\/span>.<\/span>Field<\/span> {<\/span>\r\n                        return<\/span> zap<\/span>.<\/span>Int64<\/span>(<\/span>\"grpc.time_ns\"<\/span>,<\/span> duration<\/span>.<\/span>Nanoseconds<\/span>())<\/span>\r\n                }),<\/span>\r\n        }<\/span>\r\n        zapLogger<\/span>,<\/span> _<\/span> :=<\/span> zap<\/span>.<\/span>NewProduction<\/span>()<\/span>\r\n        grpc_zap<\/span>.<\/span>ReplaceGrpcLogger<\/span>(<\/span>zapLogger<\/span>)<\/span>\r\n\r\n        s<\/span> :=<\/span> grpc<\/span>.<\/span>NewServer<\/span>(<\/span>\r\n                grpc_middleware<\/span>.<\/span>WithUnaryServerChain<\/span>(<\/span>\r\n                        grpc_ctxtags<\/span>.<\/span>UnaryServerInterceptor<\/span>(<\/span>grpc_ctxtags<\/span>.<\/span>WithFieldExtractor<\/span>(<\/span>grpc_ctxtags<\/span>.<\/span>CodeGenRequestFieldExtractor<\/span>)),<\/span>\r\n                        grpc_zap<\/span>.<\/span>UnaryServerInterceptor<\/span>(<\/span>zapLogger<\/span>,<\/span> opts<\/span>...<\/span>),<\/span>\r\n                ),<\/span>\r\n        )<\/span>\r\n\r\n<\/code><\/pre>\n
                                    \u6267\u884c\u7ed3\u679c\u5982\u4e0b\u6240\u793a\u3002 sh\u00ec)<\/p>\n
                                    $ <\/span>go run main.go\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> -H<\/span> \"te\r\nst: hoge\"<\/span> localhost:5000 hello.HelloService\/Hello\r\n{<\/span>\r\n  \"message\"<\/span>: \"Hello, Morix\"<\/span>\r\n}<\/span>\r\n\r\n# gRPC\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u306b\u4ee5\u4e0b\u304c\u51fa\u529b\u3055\u308c\u308b<\/span>\r\n{<\/span>\"level\"<\/span>:\"info\"<\/span>,\"ts\"<\/span>:1547104771.884754,\"caller\"<\/span>:\"zap\/server_interceptors.go:40\"<\/span>,\"msg\"<\/span>:\"finished unary call with code OK\"<\/span>,\"peer.address\"<\/span>:\"[::1]:50033\"<\/span>,\"grpc.start_time\"<\/span>:\"2019-01-10T16:19:31+09:00\"<\/span>,\"system\"<\/span>:\"grpc\"<\/span>,\"span.kind\"<\/span>:\"server\"<\/span>,\"grpc.service\"<\/span>:\"hello.HelloService\"<\/span>,\"grpc.method\"<\/span>:\"Hello\"<\/span>,\"peer.address\"<\/span>:\"[::1]:50033\"<\/span>,\"grpc.code\"<\/span>:\"OK\"<\/span>,\"grpc.time_ns\"<\/span>:162981}<\/span>\r\n<\/code><\/pre>\n
                                    gRPC\u7684\u8bbf\u95ee\u65e5\u5fd7\u88ab\u826f\u597d\u5730\u8f93\u51fa\u4e86\u3002<\/p>\n
                                    \u8c37\u6b4c\u901a\u7528\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\u5e93\u548c\u767b\u5f55\u7cfb\u7edf<\/h3>\n
                                    \u4e0e grpc_zap \u76f8\u540c\uff0c\u63d0\u4f9b\u4e86\u9002\u7528\u4e8e logrus \u7684\u4e2d\u95f4\u4ef6\u3002<\/p>\n
                                    logrus<\/span>.<\/span>SetLevel<\/span>(<\/span>logrus<\/span>.<\/span>DebugLevel<\/span>)<\/span>\r\n        logrus<\/span>.<\/span>SetOutput<\/span>(<\/span>os<\/span>.<\/span>Stdout<\/span>)<\/span>\r\n        logrus<\/span>.<\/span>SetFormatter<\/span>(<\/span>&<\/span>logrus<\/span>.<\/span>JSONFormatter<\/span>{})<\/span>\r\n        logger<\/span> :=<\/span> logrus<\/span>.<\/span>WithFields<\/span>(<\/span>logrus<\/span>.<\/span>Fields<\/span>{})<\/span>\r\n\r\n        opts<\/span> :=<\/span> []<\/span>grpc_logrus<\/span>.<\/span>Option<\/span>{<\/span>\r\n                grpc_logrus<\/span>.<\/span>WithDurationField<\/span>(<\/span>func<\/span>(<\/span>duration<\/span> time<\/span>.<\/span>Duration<\/span>)<\/span> (<\/span>key<\/span> string<\/span>,<\/span> value<\/span> interface<\/span>{})<\/span> {<\/span>\r\n                        return<\/span> \"grpc.time_ns\"<\/span>,<\/span> duration<\/span>.<\/span>Nanoseconds<\/span>()<\/span>\r\n                }),<\/span>\r\n        }<\/span>\r\n\r\n        grpc_logrus<\/span>.<\/span>ReplaceGrpcLogger<\/span>(<\/span>logger<\/span>)<\/span>\r\n\r\n        s<\/span> :=<\/span> grpc<\/span>.<\/span>NewServer<\/span>(<\/span>\r\n                grpc_middleware<\/span>.<\/span>WithUnaryServerChain<\/span>(<\/span>\r\n                        grpc_ctxtags<\/span>.<\/span>UnaryServerInterceptor<\/span>(<\/span>grpc_ctxtags<\/span>.<\/span>WithFieldExtractor<\/span>(<\/span>grpc_ctxtags<\/span>.<\/span>CodeGenRequestFieldExtractor<\/span>)),<\/span>\r\n                        grpc_logrus<\/span>.<\/span>UnaryServerInterceptor<\/span>(<\/span>logger<\/span>,<\/span> opts<\/span>...<\/span>),<\/span>\r\n                ),<\/span>\r\n        )<\/span>\r\n<\/code><\/pre>\n
                                    \u6211\u4f1a\u5c1d\u8bd5\u6267\u884c\u3002<\/p>\n
                                    $ <\/span>go run main.go\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> -H<\/span> \"te\r\nst: hoge\"<\/span> localhost:5000 hello.HelloService\/Hello\r\n{<\/span>\r\n  \"message\"<\/span>: \"Hello, Morix\"<\/span>\r\n}<\/span>\r\n\r\n# gRPC\u30b5\u30fc\u30d0\u30fc\u306e\u30ed\u30b0\u306b\u4ee5\u4e0b\u304c\u51fa\u529b\u3055\u308c\u308b<\/span>\r\n{<\/span>\"grpc.code\"<\/span>:\"OK\"<\/span>,\"grpc.method\"<\/span>:\"Hello\"<\/span>,\"grpc.service\"<\/span>:\"hello.HelloService\"<\/span>,\"grpc.start_time\"<\/span>:\"2019-01-10T16:34:13+09:00\"<\/span>,\"grpc.time_ns\"<\/span>:16512,\"level\"<\/span>:\"info\"<\/span>,\"msg\"<\/span>:\"finished unary call with code OK\"<\/span>,\"peer.address\"<\/span>:\"[::1]:53643\"<\/span>,\"span.kind\"<\/span>:\"server\"<\/span>,\"system\"<\/span>:\"grpc\"<\/span>,\"time\"<\/span>:\"2019-01-10T16:34:13+09:00\"<\/span>}<\/span>\r\n<\/code><\/pre>\n
                                    \u8fd9\u8ddfzap\u4e00\u6837\u3002<\/p>\n
                                    gRPC\u666e\u7f57\u7c73\u4fee\u65af<\/h3>\n
                                    \u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u5c06\u5728 Prometheus \u76d1\u63a7\u4e2d\u8f93\u51fa\u6307\u6807\u7684\u4e2d\u95f4\u4ef6\u3002<\/p>\n
                                    \u7531\u4e8e\u66f4\u6539\u7684\u5730\u65b9\u5f88\u591a\uff0c\u56e0\u6b64\u6211\u4f1a\u5c06\u6240\u6709\u53d8\u66f4\u90fd\u5305\u542b\u5728\u5185\u3002<\/p>\n
                                    package<\/span> main<\/span>\r\n\r\nimport<\/span> (<\/span>\r\n        \"context\"<\/span>\r\n        \"fmt\"<\/span>\r\n        grpc_prome<\/span> \"github.com\/grpc-ecosystem\/go-grpc-prometheus\"<\/span>\r\n        pb<\/span> \"github.com\/morix1500\/sample-go-grpc-middleware\/proto\"<\/span>\r\n        \"github.com\/prometheus\/client_golang\/prometheus\"<\/span>\r\n        \"github.com\/prometheus\/client_golang\/prometheus\/promhttp\"<\/span>\r\n        \"google.golang.org\/grpc\"<\/span>\r\n        \"net\"<\/span>\r\n        \"net\/http\"<\/span>\r\n)<\/span>\r\n\r\nvar<\/span> (<\/span>\r\n        grpcMetrics<\/span> =<\/span> grpc_prome<\/span>.<\/span>NewServerMetrics<\/span>()<\/span>\r\n\r\n        reg<\/span> =<\/span> prometheus<\/span>.<\/span>NewRegistry<\/span>()<\/span>\r\n\r\n        customizedCounterMetric<\/span> =<\/span> prometheus<\/span>.<\/span>NewCounterVec<\/span>(<\/span>prometheus<\/span>.<\/span>CounterOpts<\/span>{<\/span>\r\n                Name<\/span>:<\/span> \"demo_server_say_hello_method_handle_count\"<\/span>,<\/span>\r\n                Help<\/span>:<\/span> \"Total number of RPCs handled on the server.\"<\/span>,<\/span>\r\n        },<\/span> []<\/span>string<\/span>{<\/span>\"name\"<\/span>})<\/span>\r\n)<\/span>\r\n\r\ntype<\/span> HelloService<\/span> struct<\/span>{}<\/span>\r\n\r\nfunc<\/span> (<\/span>h<\/span> HelloService<\/span>)<\/span> Hello<\/span>(<\/span>ctx<\/span> context<\/span>.<\/span>Context<\/span>,<\/span> in<\/span> *<\/span>pb<\/span>.<\/span>HelloRequest<\/span>)<\/span> (<\/span>*<\/span>pb<\/span>.<\/span>HelloResponse<\/span>,<\/span> error<\/span>)<\/span> {<\/span>\r\n        \/\/ Custom Metrics Count up<\/span>\r\n        customizedCounterMetric<\/span>.<\/span>WithLabelValues<\/span>(<\/span>\"Test\"<\/span>)<\/span>.<\/span>Inc<\/span>()<\/span>\r\n        return<\/span> &<\/span>pb<\/span>.<\/span>HelloResponse<\/span>{<\/span>\r\n                Message<\/span>:<\/span> \"Hello, \"<\/span> +<\/span> in<\/span>.<\/span>Name<\/span>,<\/span>\r\n        },<\/span> nil<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n        lis<\/span>,<\/span> err<\/span> :=<\/span> net<\/span>.<\/span>Listen<\/span>(<\/span>\"tcp\"<\/span>,<\/span> \":5000\"<\/span>)<\/span>\r\n        if<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n                panic<\/span>(<\/span>err<\/span>)<\/span>\r\n        }<\/span>\r\n\r\n        \/\/ \u30ab\u30b9\u30bf\u30e0\u30e1\u30c8\u30ea\u30af\u30b9\u767b\u9332<\/span>\r\n        reg<\/span>.<\/span>MustRegister<\/span>(<\/span>grpcMetrics<\/span>,<\/span> customizedCounterMetric<\/span>)<\/span>\r\n        customizedCounterMetric<\/span>.<\/span>WithLabelValues<\/span>(<\/span>\"Test\"<\/span>)<\/span>\r\n\r\n        \/\/ create http server<\/span>\r\n        httpServer<\/span> :=<\/span> &<\/span>http<\/span>.<\/span>Server<\/span>{<\/span>\r\n                Handler<\/span>:<\/span> promhttp<\/span>.<\/span>HandlerFor<\/span>(<\/span>reg<\/span>,<\/span> promhttp<\/span>.<\/span>HandlerOpts<\/span>{}),<\/span>\r\n                Addr<\/span>:<\/span>    fmt<\/span>.<\/span>Sprintf<\/span>(<\/span>\"0.0.0.0:%d\"<\/span>,<\/span> 5001<\/span>),<\/span>\r\n        }<\/span>\r\n\r\n        s<\/span> :=<\/span> grpc<\/span>.<\/span>NewServer<\/span>(<\/span>\r\n                grpc<\/span>.<\/span>UnaryInterceptor<\/span>(<\/span>grpcMetrics<\/span>.<\/span>UnaryServerInterceptor<\/span>()),<\/span>\r\n        )<\/span>\r\n        pb<\/span>.<\/span>RegisterHelloServiceServer<\/span>(<\/span>s<\/span>,<\/span> HelloService<\/span>{})<\/span>\r\n\r\n        \/\/ \u30e1\u30c8\u30ea\u30af\u30b9\u521d\u671f\u5316<\/span>\r\n        grpcMetrics<\/span>.<\/span>InitializeMetrics<\/span>(<\/span>s<\/span>)<\/span>\r\n\r\n        go<\/span> func<\/span>()<\/span> {<\/span>\r\n                if<\/span> err<\/span> :=<\/span> httpServer<\/span>.<\/span>ListenAndServe<\/span>();<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n                        panic<\/span>(<\/span>err<\/span>)<\/span>\r\n                }<\/span>\r\n        }()<\/span>\r\n\r\n        if<\/span> err<\/span> :=<\/span> s<\/span>.<\/span>Serve<\/span>(<\/span>lis<\/span>);<\/span> err<\/span> !=<\/span> nil<\/span> {<\/span>\r\n                panic<\/span>(<\/span>err<\/span>)<\/span>\r\n        }<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
                                    \u8fdb\u884c\u4e2d<\/p>\n
                                    $ <\/span>go run main.go\r\n# hello\u30923\u56de\u547c\u3073\u51fa\u3057\u305f\u3042\u3068\u306b<\/span>\r\n$ <\/span>curl localhost:5001\r\n\r\n# HELP demo_server_say_hello_method_handle_count Total number of RPCs handled on the server.<\/span>\r\n# TYPE demo_server_say_hello_method_handle_count counter<\/span>\r\ndemo_server_say_hello_method_handle_count{<\/span>name<\/span>=<\/span>\"Test\"<\/span>}<\/span> 3\r\n# HELP grpc_server_handled_total Total number of RPCs completed on the server, regardless of success or failure.<\/span>\r\n# TYPE grpc_server_handled_total counter<\/span>\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"Aborted\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"AlreadyExists\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"Canceled\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"DataLoss\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"DeadlineExceeded\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"FailedPrecondition\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"Internal\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"InvalidArgument\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"NotFound\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"OK\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 3\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"OutOfRange\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"PermissionDenied\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"ResourceExhausted\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"Unauthenticated\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"Unavailable\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"Unimplemented\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\ngrpc_server_handled_total{<\/span>grpc_code<\/span>=<\/span>\"Unknown\"<\/span>,grpc_method=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 0\r\n# HELP grpc_server_msg_received_total Total number of RPC stream messages received on the server.<\/span>\r\n# TYPE grpc_server_msg_received_total counter<\/span>\r\ngrpc_server_msg_received_total{<\/span>grpc_method<\/span>=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 3\r\n# HELP grpc_server_msg_sent_total Total number of gRPC stream messages sent by the server.<\/span>\r\n# TYPE grpc_server_msg_sent_total counter<\/span>\r\ngrpc_server_msg_sent_total{<\/span>grpc_method<\/span>=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 3\r\n# HELP grpc_server_started_total Total number of RPCs started on the server.<\/span>\r\n# TYPE grpc_server_started_total counter<\/span>\r\ngrpc_server_started_total{<\/span>grpc_method<\/span>=<\/span>\"Hello\"<\/span>,grpc_service=<\/span>\"hello.HelloService\"<\/span>,grpc_type=<\/span>\"unary\"<\/span>}<\/span> 3\r\n\r\n<\/code><\/pre>\n
                                    Prometheus\u4ee5\u8fd9\u79cd\u5f62\u5f0f\u8f93\u51fa\u6307\u6807\u3002\u5f53\u7136\uff0c\u60a8\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u81ea\u5b9a\u4e49\u6307\u6807\u3002<\/p>\n
                                    otgrpc \/ grpc_opentracing \u53ef\u4ee5\u6539\u5199\u4e3a\u300cotgrpc \/ grpc_opentracing\u300d<\/h3>\n
                                    \u4e00\u4e2a\u4f7f\u7528OpenTracing\u7684\u4e2d\u95f4\u4ef6\u3002\u7531\u4e8e\u4e0d\u4e86\u89e3OpenTracing\u7684\u7528\u6cd5\uff0c\u6240\u4ee5\u7701\u7565\u3002<\/p>\n
                                    GRPC\u9a8c\u8bc1\u5668<\/h3>\n
                                    \u8fd9\u662f\u4e00\u4e2a\u7528\u4e8e\u9a8c\u8bc1\u8bf7\u6c42\u7684\u4e2d\u95f4\u4ef6\u3002
                                    \n\u6211\u4eec\u5c06\u5728proto\u6587\u4ef6\u4e2d\u8bb0\u5f55\u9a8c\u8bc1\u65b9\u6cd5\u3002<\/p>\n
                                    syntax<\/span> =<\/span> \"proto3\"<\/span>;<\/span>\r\n\r\nimport<\/span> \"github.com\/mwitkow\/go-proto-validators\/validator.proto\"<\/span>;<\/span>\r\npackage<\/span> hello<\/span>;<\/span>\r\n\r\nmessage<\/span> HelloRequest<\/span> {<\/span>\r\n  string<\/span> name<\/span> =<\/span> 1<\/span> [(<\/span>validator.field<\/span>)<\/span> =<\/span> {<\/span>string_not_empty<\/span>:<\/span> true<\/span>}];<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                    \u53d1\u5e03Go\u6587\u4ef6\u7684\u547d\u4ee4\u4e5f\u7a0d\u4f5c\u66f4\u6539\u3002<\/p>\n
                                    docker run --rm<\/span> -v<\/span> $(<\/span>pwd<\/span>)<\/span>:$(<\/span>pwd<\/span>)<\/span> \\<\/span>\r\n-w<\/span> $(<\/span>pwd<\/span>)<\/span> znly\/protoc:0.4.0 \\<\/span>\r\n-I<\/span> .\/proto \\<\/span>\r\n--go_out<\/span>=<\/span>plugins<\/span>=<\/span>grpc:.\/proto\/ \\<\/span>\r\n--govalidators_out<\/span>=<\/span>.\/proto\/ \\<\/span>\r\nproto\/hello.proto\r\n<\/code><\/pre>\n
                                    \u7528\u4e2d\u6587\u5c06\u4ee5\u4e0b\u8bed\u53e5\u91cd\u8ff0\u4e00\u904d\uff0c\u53ea\u9700\u8981\u4e00\u79cd\u65b9\u5f0f\uff1a
                                    \n\u8fd9\u6837\u5c31\u53ef\u4ee5\u5728proto\u76ee\u5f55\u4e0b\u8f93\u51fa\u4e00\u4e2a\u540d\u4e3a hello.validator.pb.go \u7684\u6587\u4ef6\u3002<\/p>\n
                                    \u5269\u4e0b\u7684\u662f\u8bbe\u7f6egRPC\u7684Intercepter\u3002<\/p>\n
                                            s<\/span> :=<\/span> grpc<\/span>.<\/span>NewServer<\/span>(<\/span>\r\n                grpc<\/span>.<\/span>UnaryInterceptor<\/span>(<\/span>grpc_middleware<\/span>.<\/span>ChainUnaryServer<\/span>(<\/span>\r\n                        grpc_validator<\/span>.<\/span>UnaryServerInterceptor<\/span>(),<\/span>\r\n                )),<\/span>\r\n        )<\/span>\r\n<\/code><\/pre>\n
                                    \u6211\u4f1a\u5c1d\u8bd5\u6267\u884c\u8fd9\u4e2a\u3002<\/p>\n
                                    $ <\/span>go run main.go\r\n# \u6b63\u5e38<\/span>\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> localhost:5000 hello.HelloService\/Hello\r\n{<\/span>\r\n  \"message\"<\/span>: \"Hello, Morix\"<\/span>\r\n}<\/span>\r\n# \u30ea\u30af\u30a8\u30b9\u30c8\u306a\u3057<\/span>\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto localhost:5000 hello.HelloSer\r\nvice\/Hello\r\nERROR:\r\n  Code: InvalidArgument\r\n  Message: invalid field Name: value ''<\/span> must not be an empty string\r\n\r\n<\/code><\/pre>\n
                                    \u7531\u4e8eproto\u6587\u4ef6\u4e2d\u5b9a\u4e49\u5e76\u9a8c\u8bc1\u4e86\u63a5\u53e3\uff0c\u56e0\u6b64\u53ef\u4ee5\u5c06\u63a5\u53e3\u5b9a\u4e49\u6587\u4ef6\u7684\u804c\u8d23\u8f6c\u79fb\u5230proto\u6587\u4ef6\u4e2d\u3002<\/p>\n
                                    gRPC\u7684\u6062\u590d\u673a\u5236<\/h3>\n
                                    \u8fd9\u662f\u4e00\u79cd\u4e2d\u95f4\u4ef6\uff0c\u53ef\u4ee5\u5c06\u6050\u614c\u8f6c\u6362\u4e3agRPC\u9519\u8bef\u3002<\/p>\n
                                    \/\/ \u610f\u56f3\u7684\u306bpanic\u304c\u8d77\u3053\u308b\u3088\u3046\u306b\u3057\u307e\u3059<\/span>\r\nfunc<\/span> (<\/span>h<\/span> HelloService<\/span>)<\/span> Hello<\/span>(<\/span>ctx<\/span> context<\/span>.<\/span>Context<\/span>,<\/span> in<\/span> *<\/span>pb<\/span>.<\/span>HelloRequest<\/span>)<\/span> (<\/span>*<\/span>pb<\/span>.<\/span>HelloResponse<\/span>,<\/span> error<\/span>)<\/span> {<\/span>\r\n        if<\/span> in<\/span>.<\/span>Name<\/span> ==<\/span> \"panic\"<\/span> {<\/span>\r\n                panic<\/span>(<\/span>\"failed\"<\/span>)<\/span>\r\n        }<\/span>\r\n---<\/span>\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n        opts<\/span> :=<\/span> []<\/span>grpc_recovery<\/span>.<\/span>Option<\/span>{<\/span>\r\n                grpc_recovery<\/span>.<\/span>WithRecoveryHandler<\/span>(<\/span>recoveryFunc<\/span>),<\/span>\r\n        }<\/span>\r\n\r\n        s<\/span> :=<\/span> grpc<\/span>.<\/span>NewServer<\/span>(<\/span>\r\n                grpc_middleware<\/span>.<\/span>WithUnaryServerChain<\/span>(<\/span>\r\n                        grpc_recovery<\/span>.<\/span>UnaryServerInterceptor<\/span>(<\/span>opts<\/span>...<\/span>),<\/span>\r\n                ),<\/span>\r\n        )<\/span>\r\n\r\n---<\/span>\r\n\r\n\/\/ gRPC\u306eerror\u3092\u8fd4\u3057\u307e\u3059<\/span>\r\nfunc<\/span> recoveryFunc<\/span>(<\/span>p<\/span> interface<\/span>{})<\/span> error<\/span> {<\/span>\r\n        fmt<\/span>.<\/span>Printf<\/span>(<\/span>\"p: %+v<\/span>\\n<\/span>\"<\/span>,<\/span> p<\/span>)<\/span>\r\n        return<\/span> grpc<\/span>.<\/span>Errorf<\/span>(<\/span>codes<\/span>.<\/span>Internal<\/span>,<\/span> \"Unexpected error\"<\/span>)<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
                                    \u6267\u884c<\/p>\n
                                    $ <\/span>go run main.go\r\n# \u6b63\u5e38<\/span>\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"Morix\"}'<\/span> localh\r\nost:5000 hello.HelloService\/Hello\r\n{<\/span>\r\n  \"message\"<\/span>: \"Hello, Morix\"<\/span>\r\n}<\/span>\r\n# \u4ee5\u4e0a<\/span>\r\n$ <\/span>grpcurl -plaintext<\/span> -import-path<\/span> .<\/span> -proto<\/span> proto\/hello.proto -d<\/span> '{\"name\": \"panic\"}'<\/span> localhost:5000 hello.HelloService\/Hello\r\nERROR:\r\n  Code: Internal\r\n  Message: Unexpected error\r\n\r\n<\/code><\/pre>\n
                                    \u5f53\u53d1\u751f\u6050\u614c\u65f6\uff0c\u670d\u52a1\u5668\u5c06\u505c\u6b62\u8fd0\u884c\uff0c\u4f46\u73b0\u5728\u53ef\u4ee5\u5c06\u5176\u4f5c\u4e3agPRC\u9519\u8bef\u8fd4\u56de\u3002<\/p>\n
                                    \u8d34\u58eb<\/h2>\n
                                    gRPC\u9519\u8bef\u4ee3\u7801<\/h3>\n
                                    \u5728\u751f\u6210gRPC\u9519\u8bef\u65f6\uff0c\u53ef\u4ee5\u4ece\u4ee5\u4e0b\u4ee3\u7801\u4e2d\u9009\u62e9\uff1a
                                    \nhttps:\/\/github.com\/grpc\/grpc-go\/blob\/master\/codes\/codes.go<\/p>\n
                                    \u64cd\u4f5ccontext\u7684\u5143\u6570\u636e\u7684\u65b9\u4fbf\u51fd\u6570<\/h3>\n
                                    \u7de8\u8f2f\u8207\u4e0a\u4e0b\u6587\u76f8\u95dc\u7684\u5143\u6578\u64da\u6709\u9ede\u9ebb\u7169\uff0c\u4f46\u662f go-grpc-middleware \u5728\u9019\u65b9\u9762\u63d0\u4f9b\u4e86\u9019\u6a23\u7684\u529f\u80fd\u3002
                                    \nhttps:\/\/github.com\/grpc-ecosystem\/go-grpc-middleware\/tree\/master\/util\/metautils<\/p>\n
                                    \/\/ \u3053\u308c\u3067Metadata\u306eKey\u304b\u3089Value\u304c\u53d6\u308c\u308b<\/span>\r\nval<\/span> :=<\/span> metautils<\/span>.<\/span>ExtractIncoming<\/span>(<\/span>ctx<\/span>)<\/span>.<\/span>Get<\/span>(<\/span>\"Hoge\"<\/span>)<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
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