teams-web-send/dist/tws.umd.development.js

Post messages to Microsoft Teams directly from the browser!

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
  typeof define === 'function' && define.amd ? define(['exports'], factory) :
  (global = global || self, factory(global.tws = {}));
}(this, (function (exports) { 'use strict';

  function isIE() {
    var ua = window.navigator.userAgent;
    var msie = ua.indexOf('MSIE ');
    var trident = ua.indexOf('Trident');
    var edge = ua.indexOf('Edge');
    return msie > 0 || trident > 0 || edge > 0;
  }

  function prepareMessage(message) {
    return message.substring(0, message.lastIndexOf('}')).concat(',"trash": "');
  }

  function bootstrap(host) {
    var targetHost = host || document.body;
    var isIEBrowser = isIE();
    var sendForm = document.createElement('form');
    sendForm.style.display = 'none';
    sendForm.className = 'mstws-send-form';
    sendForm.method = 'POST';
    sendForm.enctype = 'text/plain';
    sendForm.target = 'mstws-send-frame';
    var sendInput = document.createElement('input');
    sendInput.type = 'text';
    sendInput.value = '"}';
    var sendFrame = document.createElement('iframe');
    sendFrame.tabIndex = -1;
    sendFrame.name = 'mstws-send-frame';
    var resolveResult;
    sendFrame.addEventListener('load', function () {
      if (!resolveResult) {
        return;
      }

      resolveResult(); // cleanup references

      resolveResult = null;
    });
    sendForm.appendChild(sendInput);
    sendForm.appendChild(sendFrame);
    targetHost.appendChild(sendForm);
    return function (webhookUrl, message) {
      return new Promise(function (resolve, reject) {
        try {
          sendForm.action = webhookUrl;
          var postData = prepareMessage(message);

          if (isIEBrowser) {
            postData = postData.replace(/'/g, "\\'").replace(/"/g, "'").replace(/\s\s+/g, '');
            sendInput.value = "'}";
          }

          sendInput.name = postData;
          sendForm.submit();
        } catch (e) {
          console.error(e);
          reject(new Error('Incorrectly formatted message.'));
        }

        resolveResult = resolve;
      });
    };
  }

  exports.bootstrap = bootstrap;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
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