-function token (req, res, next) {
- return oAuthServer.token()(req, res, next)
+function token (req: express.Request, res: express.Response, next: express.NextFunction) {
+ return oAuthServer.token()(req, res, err => {
+ if (err) {
+ return res.status(err.status)
+ .json({
+ error: 'Authentication failed.',
+ code: err.name
+ })
+ .end()
+ }
+
+ return next()
+ })