Changing package to work with react-native-fetch-blob

lib/Auth.js

@@ -1,10 +1,27 @@
 import uuid from 'uuid';
 import querystring from 'query-string';
+import RNFetchBlob from 'react-native-fetch-blob';
 import URL from 'url';
 import {
     Buffer
 } from 'buffer';
 
+const { Blob } = RNFetchBlob.polyfill;
+const { fs } = RNFetchBlob;
+window.XMLHttpRequest = RNFetchBlob.polyfill.XMLHttpRequest;
+window.Blob = Blob;
+window.fetch = new RNFetchBlob.polyfill.Fetch({
+  // enable this option so that the response data conversion handled automatically
+  auto: true,
+  // when receiving response data, the module will match its Content-Type header
+  // with strings in this array. If it contains any one of string in this array,
+  // the response body will be considered as binary data and the data will be stored
+  // in file system instead of in memory.
+  // By default, it only store response data to file system when Content-Type
+  // contains string `application/octet`.
+  binaryContentTypes: ['image/', 'video/', 'audio/', 'foo/'],
+}).build();
+
 export default class Auth {
 
     constructor(instance) {
@@ -79,8 +96,8 @@ export default class Auth {
         }, options);
 
         // request token
-        return fetch(endpoint, payload)
-            .then(response => {
+        return RNFetchBlob.fetch(payload.method, endpoint, { 'Content-Type': 'application/x-www-form-urlencoded'}, payload.body)
+        .then(response => {
                 // return blob object
                 return response.json()
             })

lib/AzureInstance.js

@@ -1,8 +1,8 @@
 export default class AzureInstance {
     constructor(credentials) {
-        this.authority = 'https://login.microsoftonline.com/common';
+        this.authority = `https://login.microsoftonline.com/${credentials.tenant || 'common'}`;
         this.authorize_endpoint = '/oauth2/v2.0/authorize';
-        this.redirect_uri = credentials.redirect_uri || 'https://localhost:3000/login';
+        this.redirect_uri = credentials.redirect_uri;
         this.token_endpoint ='/oauth2/v2.0/token';
         this.client_id = credentials.client_id;
         this.client_secret = credentials.client_secret;

package.json

@@ -9,6 +9,7 @@
   "dependencies": {
     "buffer": "^5.0.0",
     "query-string": "^4.2.3",
+    "react-native-fetch-blob": "^0.10.8",
     "url": "^0.11.0",
     "uuid": "^2.0.3"
   },