Use next(err)

[helenzhou6]

crypt-os/src/controllers/coin.js

Line 24 in 8fdbafc

if (err) next();

If you do next() then it will skip to the next middleware, which would in this case would be the 404 (page not found) page:

crypt-os/src/controllers/index.js

Lines 14 to 15 in 8fdbafc

	router.use(error.client);
	router.use(error.server);

But since there is an error with the API, I think the error page should be the 500 server error page instead. A trick that we learnt from @jamiecoe was to use next(err) instead of next() to skip to the 500 middleware/page instead. 👍