This repository contains code to demonstrate how type safe API can be created using Go with client library for ELM without writing any decoding/network code.

This is the code I demonstrated on the London Elm Meetup lightning talk called "Typesafe all the way". Talk slides are available here

• Golang 1.11+
• Go dep tool
• elm 0.19
• docker

1. Clone the code git clone https://github.com/kenota/grpc-elm.git
2. Run dep ensure
3. Run ./build.sh this will generate 3 things:
   1. Golang server/client stubs in proto/gen/golang
   2. Openapi V2 definitions in proto/gen/swagger
   3. ELM client library & decoders in proto/gen/elm
4. In terminal run go run main.go
5. Open another terminal, go to frontend folder and run elm reactor
6. Open http://localhost:8000