65 lines
1.8 KiB
Markdown
65 lines
1.8 KiB
Markdown
#gRPC in 3 minutes (C++)
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## Installation
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To install gRPC on your system, follow the instructions here:
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[https://github.com/grpc/grpc/blob/master/INSTALL](https://github.com/grpc/grpc/blob/master/INSTALL).
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## Hello C++ gRPC!
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Here's how to build and run the C++ implementation of the [Hello World](https://github.com/grpc/grpc-common/blob/master/protos/helloworld.proto) example used in [Getting started](https://github.com/grpc/grpc-common).
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The example code for this and our other examples lives in the `grpc-common`
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GitHub repository. Clone this repository to your local machine by running the
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following command:
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```sh
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$ git clone https://github.com/grpc/grpc-common.git
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```
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Change your current directory to grpc-common/cpp/helloworld
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```sh
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$ cd grpc-common/cpp/helloworld/
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```
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### Generating gRPC code
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To generate the client and server side interfaces:
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```sh
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$ make helloworld.pb.cc
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```
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Which internally invokes the proto-compiler as:
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```sh
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$ protoc -I ../../protos/ --cpp_out=. --grpc_out=. --plugin=protoc-gen-grpc=grpc_cpp_plugin ../../protos/helloworld.proto
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```
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### Client and server implementations
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The client implementation is at [greeter_client.cc](https://github.com/grpc/grpc-common/blob/master/cpp/helloworld/greeter_client.cc).
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The server implementation is at [greeter_server.cc](https://github.com/grpc/grpc-common/blob/master/cpp/helloworld/greeter_server.cc).
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### Try it!
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Build client and server:
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```sh
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$ make
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```
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Run the server, which will listen on port 50051:
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```sh
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$ ./greeter_server
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```
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Run the client (in a different terminal):
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```sh
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$ ./greeter_client
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```
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If things go smoothly, you will see the "Greeter received: Hello world" in the client side output.
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## Tutorial
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You can find a more detailed tutorial in [gRPC Basics: C++](https://github.com/grpc/grpc-common/blob/master/cpp/cpptutorial.md)
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