n8n-function-cloudflare-to-slack.js

const fullTextRaw = $json["body"]["text"] || "";
const fullText = fullTextRaw.trim(); // remove leading/trailing whitespace
const lines = fullText.split('\n').map(line => line.trim());

// Look for lines
const summaryLine = lines.find(line => line.includes("Cloudflare Pages:"));
const commitLine = lines.find(line => line.startsWith("Commit Hash:"));
const envLine = lines.find(line => line.startsWith("Environment:"));

// If any line is missing, exit the workflow
if (!summaryLine || !commitLine || !envLine) {
  return ""; // returning an empty array stops further execution
}

const filteredMessage = [summaryLine, commitLine, envLine].join('\n');

return {
  json: {
    message: filteredMessage
  }
};