WebSocket API Gateway Cognito Authorizer

WebSocket API Gateway Cognito Authorizer.

Authorizer Function

npm i
npm run build
npm run package

Upload authorizer-function.zip as source code for the Lambda.

Cognito Web Auth

npm i
npm start

Lambda Policy

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": "execute-api:Invoke",
      "Effect": "Allow",
      "Resource": "arn:aws:execute-api:us-east-1:1234567890:abc123/production/*"
    }
  ]
}

Where:

• us-east-1 - region,
• 1234567890 - account,
• abc123 - API Gateway ID,
• production - stage.

wscat

npm install -g wscat

wscat -c 'wss://abc123.execute-api.us-east-1.amazonaws.com/$default'