From 77d102287338ef44a13f81d218914ade15fec107 Mon Sep 17 00:00:00 2001
From: Gijs van Dam <gvandam@gmail.com>
Date: Sun, 14 Apr 2019 21:42:12 +0800
Subject: [PATCH] Add error listeners before Auth.init()

In the current setup, if you want to create an error listener, you
should create a plugin, and load them through the config with the
setting auth.plugins, like so:

`plugins: ['~/plugins/auth-error-listener.js']`

The plugins are loaded *after* the main Auth plugin itself is loaded.
The main plugin takes care of the init. So if an error occurs during
init, it's impossible to catch it with a custom error listener.

This commit adds a new config option, called `errorListeners`, it's used
in the same way as plugins, so:

`errorListeners: ['~/utils/auth-error-listener.js']`

The plugin itself isn't a nuxt plugin, so it should export a
default function:

`
export default function(error) {
  console.log('error listener')
  console.log(error.response.data)
  console.log(error.response.status)
}
`

ErrorListeners will be loaded *before* init. This change should be
backwards compatible, since the old method of loading listeners through
plugins still works.
---
 lib/module/defaults.js | 1 +
 lib/module/plugin.js   | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/lib/module/defaults.js b/lib/module/defaults.js
index 2be4f71e0..c06ea555e 100644
--- a/lib/module/defaults.js
+++ b/lib/module/defaults.js
@@ -2,6 +2,7 @@ module.exports = {
   //  -- Error handling --
 
   resetOnError: false,
+  errorListeners: [],
 
   // -- Authorization --
 
diff --git a/lib/module/plugin.js b/lib/module/plugin.js
index ffb025f0c..1fedbf57e 100644
--- a/lib/module/plugin.js
+++ b/lib/module/plugin.js
@@ -4,6 +4,7 @@ import './middleware'
 
 // Active schemes
 <%= options.uniqueSchemes.map(path =>`import ${'scheme_' + hash(path)} from '${path.replace(/\\/g,'/')}'`).join('\n') %>
+<%= options.options.errorListeners.map(path =>`import ${'listener_' + hash(path)} from '${path.replace(/\\/g,'/')}'`).join('\n') %>
 
 export default function (ctx, inject) {
   // Options
@@ -15,6 +16,10 @@ export default function (ctx, inject) {
   // Inject it to nuxt context as $auth
   inject('auth', $auth)
 
+  // Load error listeners
+
+  <%= options.options.errorListeners.map(path =>`$auth.onError(${'listener_' + hash(path)})`).join('\n') %>
+
   // Register strategies
 
   <%=