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README.md

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sample client-server pair using gRPC and Qt in Go. The server simply stores an integer. The client, when started, automatically connects to the server and, once a second, requests the next value in an incrementing counter. I made this for testing the install environment when working with gRPC and Qt together in Go, since both have a non-trivial install process.

see here to install gRPC: http://www.grpc.io/docs/quickstart/go.html and here to install Qt: https://github.com/therecipe/qt

Files:

  • lib: contains the gRPC protobuf definition of our service. Our service defines one unary endpoint with an input message type and an output message type.
  • lib/count.proto: the gRPC definitions, written by a human
  • lib/count: the Go package containing our gRPC client and server definitions
  • lib/count/count.pb.go: generated from lib/count.proto using the following protoc invokation:
    protoc -I count count.proto --go_out=plugins=grpc:count
  • cmd: contains our executable programs
  • cmd/count-client: a gRPC client with a Qt ui
  • cmd/count-server: a gRPC server, no graphical ui

Compiling the client:

Compiling the client is a bit tricky. The way I got this to work was to use MSYS2 and MinGW-64. I installed the pacman package mingw-w64-x86_64-qt-creator, which includes a 64-bit gcc. I was able to piece together the install process that worked for me based on the instructions found in the https://github.com/therecipe/qt README, the MSYS2 wiki, and the MSYS2 page of the Qt wiki.

this has only been tested on Windows 10