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diff --git a/examples/cpp/metadata/README.md b/examples/cpp/metadata/README.md deleted file mode 100644 index 96ad3d19bd..0000000000 --- a/examples/cpp/metadata/README.md +++ /dev/null @@ -1,66 +0,0 @@ -# Metadata Example - -## Overview - -This example shows you how to add custom headers on the client and server and -how to access them. - -Custom metadata must follow the "Custom-Metadata" format listed in -https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md, with the -exception of binary headers, which don't have to be base64 encoded. - -### Get the tutorial source code - The example code for this and our other examples lives in the `examples` directory. Clone this repository to your local machine by running the following command: - ```sh -$ git clone -b $(curl -L https://grpc.io/release) https://github.com/grpc/grpc -``` - Change your current directory to examples/cpp/metadata - ```sh -$ cd examples/cpp/metadata -``` - -### Generating gRPC code - To generate the client and server side interfaces: - ```sh -$ make helloworld.grpc.pb.cc helloworld.pb.cc -``` -Which internally invokes the proto-compiler as: - ```sh -$ protoc -I ../../protos/ --grpc_out=. --plugin=protoc-gen-grpc=grpc_cpp_plugin ../../protos/helloworld.proto -$ protoc -I ../../protos/ --cpp_out=. ../../protos/helloworld.proto -``` -### Try it! -Build client and server: - -```sh -$ make -``` - -Run the server, which will listen on port 50051: - -```sh -$ ./greeter_server -``` - -Run the client (in a different terminal): - -```sh -$ ./greeter_client -``` - -If things go smoothly, you will see in the client terminal: - -"Client received initial metadata from server: initial metadata value" -"Client received trailing metadata from server: trailing metadata value" -"Client received message: Hello World" - - -And in the server terminal: - -"Header key: custom-bin , value: 01234567" -"Header key: custom-header , value: Custom Value" -"Header key: user-agent , value: grpc-c++/1.16.0-dev grpc-c/6.0.0-dev (linux; chttp2; gao)" - -We did not add the user-agent metadata as a custom header. This shows how -the gRPC framework adds some headers under the hood that may show up in the -metadata map. |