lambda_function.py

import json
import os
import urllib.request

def lambda_handler(event, context):
    slack_url = os.environ.get("SLACK_URL")

    try:
        body = json.loads(event['body'])
        issue_url = body['issue']['html_url']

        message = {
            "text": f"Issue created: {issue_url}"
        }

        req = urllib.request.Request(
            slack_url,
            data=json.dumps(message).encode("utf-8"),
            headers={"Content-Type": "application/json"}
        )

        with urllib.request.urlopen(req) as res:
            print(res.read().decode("utf-8"))

        return {
            "statusCode": 200,
            "body": json.dumps({"message": "Posted to Slack"})
        }

    except Exception as e:
        return {
            "statusCode": 500,
            "body": json.dumps({"error": str(e)})
        }