Added checkFetchStatus function and fetch will use it.

client/class.js

@@ -17,9 +17,10 @@ module.exports = class extends Client {
 
         this.funcs = {};
         this.funcs.check = require('./funcs/check.js');
+        this.funcs.checkFetchStatus = require('./funcs/checkFetchStatus.js');
+        this.funcs.isDev = require('./funcs/isDev.js');
         this.funcs.msToTime = require('./funcs/msToTime.js');
         this.funcs.statisticsUpdate = require('./funcs/statisticsUpdate.js');
-        this.funcs.isDev = require('./funcs/isDev.js');
 
         this.config = require('../config.js');
         this.messages = require('./messages.js');

client/events/ready.js

@@ -21,14 +21,20 @@ module.exports = {
 
         try {
             client.stations = await fetch('https://gitea.cwinfo.org/cwchristerw/radio/raw/branch/master/playlist.json')
-                .then(res => res.json());
-        } catch (err) {
-            console.error(err);
+                .then(client.funcs.checkFetchStatus)
+                .then(response => response.json());
+        } catch (error) {
+            console.error(error);
         }
         
         setInterval(async () => {
-            client.stations = await fetch('https://gitea.cwinfo.org/cwchristerw/radio/raw/branch/master/playlist.json')
-                .then(res => res.json());
+            try {
+                client.stations = await fetch('https://gitea.cwinfo.org/cwchristerw/radio/raw/branch/master/playlist.json')
+                    .then(client.funcs.checkFetchStatus)
+                    .then(response => response.json());
+            } catch (error) {
+                console.error(error);
+            }
         }, 3600000);
 
         if(!client.stations) {

client/funcs/checkFetchStatus.js

@@ -0,0 +1,7 @@
+module.exports = function (response) {
+    if (response.ok) { // res.status >= 200 && res.status < 300
+        return response;
+    } else {
+        throw new Error(response.status + " " + response.statusText);
+    }
+}