added 422 status error work

Author: codegor

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vuex-laravel-resource-api",
-  "version": "2.3.0",
+  "version": "2.3.1",
   "main": "src/Resolver.js",
   "description": "Vue API library for easy get data from Laravel REST Controller",
   "dependencies": {

src/errorMessage.js

@@ -1,15 +1,23 @@
 export default {
-    500() {
-      alert('Sorry, some error at the server, please try again later...');
-    },
-    401(){
-      if(confirm('You are no longer authorized. Would you like to log in?'))
-        window.location.reload();
-    },
-    404(){
-      alert('Seems this feature is still on the developing mode, please try again later...');
-    },
-    def(){
-      alert('Sorry, some unexpected error at the server, please try again later...');
-    }
-}
+  500() {
+    alert('Sorry, some error at the server, please try again later...');
+  },
+  401() {
+    if (confirm('You are no longer authorized. Would you like to log in?'))
+      window.location.reload();
+  },
+  404() {
+    alert('Seems this feature is still on the developing mode, please try again later...');
+  },
+  422(axResp){
+    let d = axResp.response.data || {};
+    let m = d.message || 'Sorry, some of data sent to the server was invalid.';
+    let e = '\n\nErrors:';
+    for(let i in d.errors)
+      e += '\n'+(Array.isArray(d.errors[i]) && d.errors[i].join(' ') || d.errors[i]);
+    alert(m+e);
+  },
+  def() {
+    alert('Sorry, some unexpected error at the server, please try again later...');
+  }
+};