Node.js Lambda webhook handler failing on empty body

NICE CXone API & Integrations
1

My Lambda function processes Genesys Cloud webhooks but throws a SyntaxError: Unexpected end of JSON input. The event body is undefined for some events. I’m using JSON.parse(event.body) without checking if it exists. How do I handle the missing body gracefully?

2

Try guarding the parse call first.

const data = event.body ? JSON.parse(event.body) : {};

Genesys sometimes sends empty payloads for certain event types, so that check prevents the crash.