Serverless Websockets Plugin

1. Installation

Install the plugin by adding it to your service dependencies:

npm i serverless-websockets-plugin --save

2. Usage

Load the serverless-websockets-plugin, then optionally provide a new API name and Route Selection Expression, and finally define your WebSockets events and their route keys:

service: serverless-websockets-service
 
# Load the plugin
plugins:
  - serverless-websockets-plugin
 
provider:
  name: aws
  runtime: nodejs8.10
  
  # Optional
  websocketApiName: foobar
  websocketApiRouteSelectionExpression: $request.body.action
 
functions:
  connectionManagement:
    handler: handler.connectionManagement
    events:
      - websocket:
          routeKey: $connect
      - websocket:
          routeKey: $disconnect
  defaultMessage:
    handler: handler.default
    events:
      - websocket:
          routeKey: $default
  chatMessage:
    handler: handler.chat
    events:
      - websocket:
          routeKey: message