feat: responseInterceptor and errorHandler

README.md

@@ -144,6 +144,25 @@ requestInterceptor: (config, { store }) => {
 }
 ```
 
+### `responseInterceptor`
+- Default: `null`
+
+Function for manipulating axios responses. 
+
+### `errorHandler`
+- Default: (Return promise rejection with error)
+
+Function for custom global error handler. 
+This example uses nuxt default error page.
+
+```js
+axios: {
+  errorHandler (error) {
+    this.error('Request Error: ' + error)
+  }
+},
+```
+
 ## Helpers
 
 ### Fetch Style requests

lib/plugin.template.js

@@ -31,7 +31,7 @@ const reqMethods = [
 ]
 reqMethods.forEach(method => {
   axiosExtraProto['$' + method] = function () {
-    return this[method].apply(this, arguments).then(res => res.data)
+    return this[method].apply(this, arguments).then(res => res && res.data)
   }
 })
 
@@ -60,13 +60,17 @@ function errorHandler(error) {
     error.message = error.message || 'request error'
   } else {
     // Something happened in setting up the request that triggered an Error
-    error.statusCode = 500
+    error.statusCode = error.statusCode || 0
     error.message = error.message || 'axios error'
   }
 
   return Promise.reject(error)
 }
 
+<% if (options.errorHandler) { %>
+const customErrorHandler = <%= serialize(options.errorHandler).replace('errorHandler(', 'function(').replace('function function', 'function') %>
+<% } %>
+
 <% if(options.debug) { %>
 function debug(level, messages) {
   if (!(console[level] instanceof Function)) {
@@ -154,19 +158,27 @@ export default (ctx, inject) => {
 
   <% if (options.requestInterceptor) { %>
   // Custom request interceptor
-    const reqInter = <%= serialize(options.requestInterceptor).replace('requestInterceptor(', 'function(').replace('function function', 'function') %>
-  axios.interceptors.request.use(
-    (config) => reqInter(config, ctx)
-  )
+  const reqInter = <%= serialize(options.requestInterceptor).replace('requestInterceptor(', 'function(').replace('function function', 'function') %>
+  axios.interceptors.request.use(config => reqInter(config, ctx))
+  <% } %>
+
+  <% if (options.responseInterceptor) { %>
+  // Custom response interceptor
+  const resInter = <%= serialize(options.responseInterceptor).replace('responseInterceptor(', 'function(').replace('function function', 'function') %>
+  axios.interceptors.response.use(config => resInter(config, ctx))
   <% } %>
 
   // Error handler
   axios.interceptors.response.use(undefined, errorHandler.bind(ctx));
 
-  // Publish axios to the context
+  <% if (options.errorHandler) { %>
+  // Custom error handler
+  axios.interceptors.response.use(undefined, customErrorHandler.bind(ctx))
+  <% } %>
+
+  // Inject axios to the context as $axios
   inject('axios', axios)
 
   // Setup axios helpers
   setupHelpers(axios)
-
 }