Mainflux.mainflux/ws

WebSocket adapter

WebSocket adapter provides an WebSocket API for sending and receiving messages through the platform.

Configuration

The service is configured using the environment variables presented in the following table. Note that any unset variables will be replaced with their default values.

Variable	Description	Default
MF_MANAGER_URL	Manager service URL	http://localhost:8180
MF_NATS_URL	NATS instance URL	nats://localhost:4222
MF_WS_ADAPTER_PORT	Service WS port	8180

Deployment

The service is distributed as Docker container. The following snippet provides a compose file template that can be used to deploy the service container locally:

version: "2"
services:
  adapter:
    image: mainflux/ws:[version]
    container_name: [instance name]
    ports:
      - [host machine port]:[configured port]
    environment:
      MF_MANAGER_URL: [Manager service URL]
      MF_NATS_URL: [NATS instance URL]
      MF_WS_ADAPTER_PORT: [Service WS port]

To start the service outside of the container, execute the following shell script:

# download the latest version of the service
go get github.com/mainflux/mainflux

cd $GOPATH/src/github.com/mainflux/mainflux/cmd/ws

# compile the app; make sure to set the proper GOOS value
make ws

# set the environment variables and run the service
MF_MANAGER_URL=[Manager service URL] MF_NATS_URL=[NATS instance URL] MF_WS_ADAPTER_PORT=[Service WS port] app

Usage

For more information about service capabilities and its usage, please check out the API documentation.