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angular-nest-grpc

Example full-stack Typescript project using:

  • Angular 9.1.x
  • NestJS 7.0.x
  • Protocol Buffers 3.12.x
  • Envoy Proxy 1.14.x

Installation

Install dependencies using:

docker-compose build

Usage

Run backend, frontend and proxy together using:

docker-compose up

Access the Nest gRPC microservice at:

http://localhost:50051/

Access the Envoy Proxy at:

http://localhost:8080/

View the Angular frontend at:

http://localhost:4200/

Protocol Buffers

If you update backend .proto files, then you will need to recompile them to frontend services using:

cd frontend
npm run compile

You can find out more information about gRPC requests and generated client-side code here:

https://github.com/improbable-eng/grpc-web/blob/master/client/grpc-web/docs/code-generation.md

Exploring and testing endpoints

Install grpc_cli using:

npm install -g grpcc

Then view the endpoints using:

grpcc -i --proto ./backend/src/hero/hero.proto --address localhost:50051

// call grpc methods
client.getHeroes({}, printReply)
client.getHeroById({ id: 1 }, printReply)

// call streaming methods
var call = client.getHeroesStream().on('data', streamReply).on('status', streamReply); call.write({});
var call = client.getHeroByIdStream().on('data', streamReply).on('status', streamReply); call.write({ id: 1 });

Test the regular HTTP REST api at:

http://localhost:3001/hero
http://localhost:3001/hero/1

Directory structure

/backend                               --> Backend source files
/frontend                              --> Frontend sources files

Contact

For more information please contact kmturley