try to use lightweight unfetch instead of heavy axious

web/app/common/fetcher.js

@@ -1,7 +1,8 @@
 import 'common/promises';
 
 // TODO: i think we need to use unfetch here instead of heavy axios
-import axios from 'axios';
+// import axios from 'axios';
+import fetch from 'unfetch';
 
 import { BASE_URL, API_BASE } from './constants';
 import { siteId } from './settings';
@@ -9,16 +10,16 @@ import { siteId } from './settings';
 const fetcher = {};
 const methods = ['get', 'post', 'put', 'patch', 'delete', 'head'];
 
-const { CancelToken } = axios;
-let cancelHandler = [];
+// const { CancelToken } = axios;
+// let cancelHandler = [];
 
-fetcher.cancel = (mask) => {
-  cancelHandler.forEach(req => {
-    if (req.url.includes(mask)) {
-      req.executor('Operation canceled by the user.');
-    }
-  });
-};
+// fetcher.cancel = (mask) => {
+//   cancelHandler.forEach(req => {
+//     if (req.url.includes(mask)) {
+//       req.executor('Operation canceled by the user.');
+//     }
+//   });
+// };
 
 methods.forEach(method => {
   fetcher[method] = data => {
@@ -31,40 +32,26 @@ methods.forEach(method => {
     const basename = `${BASE_URL}${overriddenApiBase}`;
 
     return new Promise((resolve, reject) => {
-      const headers = {
-        Accept: 'application/json',
-        'Content-Type': 'application/json',
-      };
-
       const parameters = {
-        method,
-        headers,
-        withCredentials,
+        method: method.toUpperCase(),
+        headers: {
+          Accept: 'application/json',
+          'Content-Type': 'application/json',
+        },
+        credentials: withCredentials && 'include',
       };
 
       if (Object.keys(body).length) {
         parameters.data = body;
       }
 
-      parameters.url = `${basename}${url}`;
-      if (method !== 'post') parameters.url += (parameters.url.includes('?') ? '&' : '?') + `site=${siteId}`;
-      parameters.cancelToken = new CancelToken(executor => {
-        cancelHandler.push({
-          executor,
-          url: parameters.url,
-        });
-      });
+      let requestUrl = `${basename}${url}`;
+      if (method !== 'post') requestUrl += (requestUrl.includes('?') ? '&' : '?') + `site=${siteId}`; // TODO: rewrite it
 
-      axios(parameters)
-        .then(res => resolve(res.data))
-        .catch(error => {
-          if (!axios.isCancel(error)) {
-            reject(error);
-          }
-        })
-        .finally(() => {
-          cancelHandler = cancelHandler.filter(req => req.url !== parameters.url);
-        });
+      fetch(requestUrl, parameters)
+        .then(res => res.json())
+        .then(data => resolve(data))
+        .catch(error => reject(error));
     });
   }
 });

web/app/common/promises.js

@@ -4,7 +4,6 @@ import Promise from 'promise-polyfill';
 Promise._unhandledRejectionFn = () => {};
 /* eslint-enable no-underscore-dangle */
 
-// TODO: need to figure out, do we really need finally?
 /* eslint-disable no-extend-native */
 Promise.prototype.finally = function finallyFn(callback) {
   const constructor = this.constructor;

web/package-lock.json

@@ -11217,6 +11217,11 @@
       "integrity": "sha1-ccCL9rQosRM/N+ePo6Icgvcymw0=",
       "dev": true
     },
+    "unfetch": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/unfetch/-/unfetch-3.0.0.tgz",
+      "integrity": "sha1-jR4FE6Ts0OX/LUGmund3Gq6LZII="
+    },
     "union-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",

web/package.json

@@ -34,6 +34,7 @@
     "babel-polyfill": "^6.23.0",
     "bem-react-helper": "^1.1.2",
     "preact": "^8.2.7",
-    "promise-polyfill": "^7.0.0"
+    "promise-polyfill": "^7.0.0",
+    "unfetch": "^3.0.0"
   }
 }