The hello world server and client demonstrate how to use Dart gRPC libraries to perform unary RPCs.

See the definition of the hello world service in protos/helloworld.proto.

To compile and run the example, assuming you are in the root of the helloworld folder, i.e., .../example/helloworld/, first get the dependencies by running:

$ dart pub get

Start the server:

$ dart bin/server.dart

Likewise, to run the client:

$ dart bin/client.dart

Start the server:

$ dart bin/unix_server.dart

Likewise, to run the client:

$ dart bin/unix_client.dart

Note the UDS only support *nix plantform.

If you have made changes to the message or service definition in protos/helloworld.proto and need to regenerate the corresponding Dart files, you will need to have protoc version 3.0.0 or higher and the Dart protoc plugin version 0.7.9 or higher on your PATH.

To install protoc, see the instructions on the Protocol Buffers website.

The easiest way to get the Dart protoc plugin is by running

$ pub global activate protoc_plugin

and follow the directions to add ~/.pub-cache/bin to your PATH, if you haven't already done so.

You can now regenerate the Dart files by running

$ protoc --dart_out=grpc:lib/src/generated -Iprotos protos/helloworld.proto