Adds service and endpoint to change displayname.

routes/api/users/index.js

@@ -57,6 +57,15 @@ router.post('/:user_id/status', authorization.needed('ADMIN'), (req, res, next)
     .catch(next);
 });
 
+router.post('/:user_id/displayname', authorization.needed(), (req, res, next) => {
+  UsersService
+    .setDisplayName(req.params.user_id, req.body.displayName)
+    .then((status) => {
+      res.status(201).json(status);
+    })
+    .catch(next);
+});
+
 // /**
 //  * SendEmailConfirmation sends a confirmation email to the user.
 //  * @param {Request} req  express request object

services/users.js

@@ -358,6 +358,24 @@ module.exports = class UsersService {
     return UserModel.update({id}, {$set: {status}});
   }
 
+  /**
+   * Set the display name of a user.
+   * @param  {String}   id   id of a user
+   * @param  {String}   displayName display name to set
+   * @param  {Function} done callback after the operation is complete
+   */
+  static setDisplayName(id, displayName) {
+
+    // Check to see if that the displayName is not empty.
+    if (displayName.length < 1) {
+
+      // User displayName is required! Error out here.
+      return Promise.reject(new Error('display name should not be empty'));
+    }
+
+    return UserModel.update({id}, {$set: {'displayName': displayName}});
+  }
+
   /**
    * Finds a user with the id.
    * @param {String} id  user id (uuid)