Detecting abuse in an inbound PubNub message

tisane_pubnub_before_publish.js

export default (request) => {
    const xhr = require('xhr');
    console.log('1. original', request.message);
    {
      return xhr.fetch('https://api.tisane.ai/parse', {
            'method'  : 'POST',
            'headers' : {
                'Ocp-Apim-Subscription-Key': '{your subscription key}'
            },
            'body': JSON.stringify({
                'language': 'en', // or whatever language you use
                'content': request.message,
                'settings': {'snippets': true} // the "snippets" setting places the relevant text snippets in the response; by default, only the offset and the length are sent
            }),
            'timeout' : 5000
        }); }
        .then((reply) => {
            var responseJson = JSON.parse(reply.body);
            if (responseJson.abuse) {
              // enrich the message with the relevant information
              request.abuse_text = responseJson.abuse.text;
              request.abuse_type = responseJson.abuse.type;
              console.log('2. possible abuse found', responseJson.abuse.type);
              return request.abort(); // return back to the sender
            }
            else
              return request.ok();
        }).catch((err) => {
            console.error(err);
            return request.abort();
        });
};