Adding login functionality to login view (connection with authmanager).

app/assets/js/authmanager.js

@@ -2,7 +2,11 @@ const ConfigManager = require('./configmanager.js')
 const Mojang = require('./mojang.js')
 
 exports.addAccount = async function(username, password){
-    const session = await Mojang.authenticate(username, password, ConfigManager.getClientToken)
+    try{
+        const session = await Mojang.authenticate(username, password, ConfigManager.getClientToken)
+    } catch (err){
+        return Promise.reject(err)
+    }
     const ret = ConfigManager.addAuthAccount(session.selectedProfile.id, session.accessToken, username, session.selectedProfile.name)
     ConfigManager.save()
     return ret

app/assets/js/mojang.js

@@ -122,7 +122,7 @@ exports.authenticate = function(username, password, clientToken, requestUser = t
             if(response.statusCode === 200){
                 fulfill(body)
             } else {
-                reject()
+                reject(body)
             }
         })
     })