Passing variables to the next middleware using next() in Express.js

Question

Well, my question is I want to pass some variable from the first middleware to another middleware, and I tried doing this, but there was \"req.somevariable is a

Answer 1

Attach your variable to the req object, not res.

Instead of

res.somevariable = variable1;

Have:

req.somevariable = variable1;

As others have pointed out, res.locals is the recommended way of passing data through middleware.