Adding HTTP status code to error.toJSON

lib/core/enhanceError.js

@@ -35,7 +35,8 @@ module.exports = function enhanceError(error, config, code, request, response) {
       stack: this.stack,
       // Axios
       config: this.config,
-      code: this.code
+      code: this.code,
+      status: this.response && this.response.status ? this.response.status : null
     };
   };
   return error;

sandbox/client.html

@@ -5,7 +5,6 @@
   <link rel="stylesheet" type="text/css" href="//maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"/>
   <style type="text/css">
     pre {
-      max-height: 200px;
       min-height: 39px;
       overflow: auto;
     }
@@ -58,6 +57,11 @@ <h3>Response</h3>
     <pre id="response">No Data</pre>
   </div>
 
+  <div class="well">
+    <h3>Error</h3>
+    <pre id="error">None</pre>
+  </div>
+
   <script src="/axios.js"></script>
   <script>
     (function () {
@@ -81,6 +85,7 @@ <h3>Response</h3>
       var submit = document.getElementById('submit');
       var request = document.getElementById('request');
       var response = document.getElementById('response');
+      var error = document.getElementById('error');
 
       function acceptsData(method) {
         return ['PATCH', 'POST', 'PUT'].indexOf(method) > -1;
@@ -138,8 +143,11 @@ <h3>Response</h3>
         axios(options)
           .then(function (res) {
             response.innerHTML = JSON.stringify(res.data, null, 2);
+            error.innerHTML = "None";
           })
           .catch(function (res) {
+            error.innerHTML = JSON.stringify(res.toJSON(), null, 2)
+            console.error('Axios caught an error from request', res.toJSON());
             response.innerHTML = JSON.stringify(res.data, null, 2);
           });
       };

test/specs/core/createError.spec.js

@@ -23,6 +23,7 @@ describe('core::createError', function() {
     expect(json.message).toBe('Boom!');
     expect(json.config).toEqual({ foo: 'bar' });
     expect(json.code).toBe('ESOMETHING');
+    expect(json.status).toBe(200);
     expect(json.request).toBe(undefined);
     expect(json.response).toBe(undefined);
   });

test/specs/core/enhanceError.spec.js

@@ -1,7 +1,7 @@
 var enhanceError = require('../../../lib/core/enhanceError');
 
 describe('core::enhanceError', function() {
-  it('should add config, config, request and response to error', function() {
+  it('should add config, code, request, response, and toJSON function to error', function() {
     var error = new Error('Boom!');
     var request = { path: '/foo' };
     var response = { status: 200, data: { foo: 'bar' } };
@@ -11,9 +11,19 @@ describe('core::enhanceError', function() {
     expect(error.code).toBe('ESOMETHING');
     expect(error.request).toBe(request);
     expect(error.response).toBe(response);
+    expect(typeof error.toJSON).toBe('function');
     expect(error.isAxiosError).toBe(true);
   });
 
+  it('should serialize to JSON with a status of null when there is no response', function() {
+    var error = new Error('Boom!');
+    var request = { path: '/foo' };
+    var response = undefined;
+
+    var errorAsJson = enhanceError(error, { foo: 'bar' }, 'ESOMETHING', request, response).toJSON();
+    expect(errorAsJson.status).toEqual(null);
+  });
+
   it('should return error', function() {
     var error = new Error('Boom!');
     expect(enhanceError(error, { foo: 'bar' }, 'ESOMETHING')).toBe(error);