Function middleware

Example

Express style middleware

app.post('/your/api', cw.utils.middleware((err, req, res, verified, payload) => {
 if (err) {
   //handle error
   res.status(500).end();
 } else if (!verified) {
   // send 403 on verification failure
   res.status(403).end();
 } else {
   res.status(200).end()
 }
 const {action, id} = req.query;
 // do something with the payload
}));
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