init

user/plugins/admin/themes/grav/app/utils/request.js

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+import { parseStatus, parseJSON, userFeedback, userFeedbackError } from './response';
+import { config } from 'grav-config';
+
+let raw;
+let request = function(url, options = {}, callback = () => true) {
+    if (typeof options === 'function') {
+        callback = options;
+        options = {};
+    }
+
+    if (options.method && options.method === 'post') {
+        let data = new FormData();
+
+        options.body = Object.assign({ 'admin-nonce': config.admin_nonce }, options.body || {});
+        Object.keys(options.body).map((key) => data.append(key, options.body[key]));
+        options.body = data;
+    }
+
+    options = Object.assign({
+        credentials: 'same-origin',
+        headers: {
+            'Accept': 'application/json'
+        }
+    }, options);
+
+    return fetch(url, options)
+        .then((response) => {
+            raw = response;
+            return response;
+        })
+        .then(parseStatus)
+        .then(parseJSON)
+        .then(userFeedback)
+        .then((response) => callback(response, raw))
+        .catch(userFeedbackError);
+};
+
+export default request;