Sails app

config/500.js

@@ -0,0 +1,77 @@
+/**
+ * Default 500 (Server Error) middleware
+ *
+ * If an error is thrown in a policy or controller, 
+ * Sails will respond using this default error handler
+ *
+ * This middleware can also be invoked manually from a controller or policy:
+ * res.serverError( [errors] )
+ *
+ *
+ * @param {Array|Object|String} errors
+ *      optional errors
+ */
+
+module.exports[500] = function serverErrorOccurred(errors, req, res) {
+
+  /*
+   * NOTE: This function is Sails middleware-- that means that not only do `req` and `res`
+   * work just like their Express equivalents to handle HTTP requests, they also simulate
+   * the same interface for receiving socket messages.
+   */
+
+  var viewFilePath = '500',
+      statusCode = 500,
+      i, errorToLog, errorToJSON;
+
+  var result = {
+    status: statusCode
+  };
+
+  // Normalize a {String|Object|Error} or array of {String|Object|Error} 
+  // into an array of proper, readable {Error}
+  var errorsToDisplay = sails.util.normalizeErrors(errors);
+  for (i in errorsToDisplay) {
+
+    // Log error(s) as clean `stack`
+    // (avoids ending up with \n, etc.)
+    if ( errorsToDisplay[i].original ) {
+      errorToLog = sails.util.inspect(errorsToDisplay[i].original);
+    }
+    else {
+      errorToLog = errorsToDisplay[i].stack;
+    }
+    sails.log.error('Server Error (500)');
+    sails.log.error(errorToLog);
+
+    // Use original error if it exists
+    errorToJSON = errorsToDisplay[i].original || errorsToDisplay[i].message;
+    errorsToDisplay[i] = errorToJSON;
+  }
+
+  // Only include errors if application environment is set to 'development'
+  // In production, don't display any identifying information about the error(s)
+  if (sails.config.environment === 'development') {
+    result.errors = errorsToDisplay;
+  }
+
+  // If the user-agent wants JSON, respond with JSON
+  if (req.wantsJSON) {
+    return res.json(result, result.status);
+  }
+
+  // Set status code and view locals
+  res.status(result.status);
+  for (var key in result) {
+    res.locals[key] = result[key];
+  }
+  // And render view
+  res.render(viewFilePath, result, function (err) {
+    // If the view doesn't exist, or an error occured, just send JSON
+    if (err) { return res.json(result, result.status); }
+    
+    // Otherwise, if it can be rendered, the `views/500.*` page is rendered
+    res.render(viewFilePath, result);
+  });
+
+};