node-red-contrib-chatbot/nodes/chatbot-push-message.js

REDBot a Chat bot for a full featured chat bot for Telegram, Facebook Messenger and Slack. Almost no coding skills required

const RegisterType = require('../lib/node-installer');
const GlobalContextHelper = require('../lib/helpers/global-context-helper');

module.exports = function(RED) {
  const registerType = RegisterType(RED);
  const globalContextHelper = GlobalContextHelper(RED);

  function ChatBotPushMessage(config) {
    RED.nodes.createNode(this, config);
    const node = this;
    globalContextHelper.init(this.context().global);

    this.on('input', function(msg, send, done) {
      // send/done compatibility for node-red < 1.0
      send = send || function() { node.send.apply(node, arguments) };
      done = done || function(error) { node.error.call(node, error, msg) };
      // get previous message from stash
      send({
        ...msg,
        previous: { ...msg.payload } // store previous msg, use POP to retrieve
      });
      done();
    });
  }

  registerType('chatbot-push-message', ChatBotPushMessage);
};