I have a Lambda function and I want it to be able to post messages to a WebSocket. There doesn't seem to be a websocket.grantPost(lambda.role) or equivalent like there is for other resources like S3 buckets, so my Lambda always fails with 403 Forbidden when I try to send messages to the WebSocket.

Use Case

I have a Lambda that is invoked via other means not related to the WebSocket, but I want to grant it permission to send messages to clients connected to the WebSocket.

Proposed Solution

Add a grantPost() or similar function to the WebSocketApi class, to provide functionality equivalent to S3.Bucket.grantPut(), DynamoDB.Table.grantReadWriteData(), etc. but for granting permission to post messages to WebSockets.

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

This is a 🚀 Feature Request