React Native Stream Chat Profanity Filtering: Receiving new message webhook

webhook in server.js

app.post("/webhook", async (req, res) => {
 
  try {
    const is_valid = server_side_client.verifyWebhook(req.body, req.headers['x-signature']);
    const event = JSON.parse(req.body);

    if (is_valid && event.type === 'message.new') {
      // next: add code for extracting user and message and filtering profanity
    }
  } catch (err) {
    console.log("webhook error: ", err);
  }
});