Error: Can't set headers after they are sent. - NodeJS and Express

Question

I have a NodeJS Rest API where I have a user collection, besides that I do user SMS verification.

This is the controller for the POST /:id/verification

Answer 1

res.json() send object to the clilent and after that you are trying to set the header with status code. So, it shows the error message. Use following code for set status and sending the content in the same time.

res.status(500).json({ error: 'message' } /* json object*/);