"undefined is not a function" on jwt.sign

Code:

jwt = require('express-jwt'),
var token = jwt.sign( { id: user._id }, secret.secretToken, { expireInMinutes: tokenManager.TOKEN_EXPIRATION } )

Error:

        var token = jwt.sign( { id: user._id }, secret.secretToken, { expireInMinut
                        ^
TypeError: undefined is not a function

[acushlakoncept]

This fix the issue for me. const { expressjwt: jwt } = require("express-jwt");

[subpopular]

Seems you could just as easily export the sign method from the already included jsonwebtoken module so that this module could provide that, no?