thegleb/grpc-debug

Sample code exploring some grpc-related issues

grpc-debug

Only intended to be example code for debugging some grpc behaviors and nothing more

Server (java)

cd java/examples/
./gradlew installDist && ./build/install/examples/bin/route-guide-server

The relevant code that instantiates the server and generates responses is contained in java/examples/src/main/java/io/grpc/examples/routeguide/RouteGuideServer.java.

Client (node)

Make sure you have yarn installed; if you don't, one way to install is with npm:

npm i -g yarn

Use nvm to select your favorite version of node; 12.13.0 is suggested in the engines config:

nvm use 12.13.0

Install dependencies

cd node/
yarn install

Run the client. The env flags are only needed for extra debug output.

GRPC_TRACE=all GRPC_VERBOSITY=DEBUG node ./static_codegen/route_guide/route_guide_client.js --db_path=./static_codegen/route_guide/route_guide_db.json

The relevant code that creates requests is at the bottom of the runGetFeature method inside static_codegen/route_guide_client.js.

The default execution will perform a "bad" request which is expected to time out after 10 seconds. Change these lines to see how a "good" request should work.

  // client.getFeatureGood(point1, {deadline}, featureCallback);
  client.getFeatureBad(point1, {deadline}, featureCallback);