Module has no exported member, 'Request'

Question

I see there are a ton of posts on this topic, but I didn't see any related to Express and my particular issue, which is:

import * as express from 'express';
import { Request, Response, Application } from 'express';  // <-- Error here

gives me an error (Module has no imported member for 'Request', 'Response' and 'Application').

I see that in node_modules there are the files request.js, response.js, and application.js listed in the /lib sub-directory. Based on the error trace, my guess is that Express is not checking in the /lib sub-directory. How can I force/guide the system to check in the /lib sub-directory when using import? (Or is that not the problem and there's another problem altogether?).

I tried import { Request, Response, Application } from 'express/lib', and import * as expressLib from 'express/lib and then import {Request, Response, Application } from expressLib, but neither of those worked.

---

Note: I have the following code below the imports . . . Because Request and Response are Object types, I assume they should be left in upper-case?

import * as express from 'express';
// import * as expressLib from 'express/lib'
import { Request, Response, Application } from 'express';
const bodyParser = require('body-parser');
const cookieParser = require('cookie-parser');
import * as jwt from 'jsonwebtoken';
import * as fs from "fs";

const app: Application = express();

app.use(bodyParser.json());

app.route('api/login')
    .post(loginRoute);

const RSA_PRIVATE_KEY = fs.readFileSync('/demos/private.key');


export function loginRoute(req: Request, res: Response) {

    const email = req.body.email, 
        password = req.body.password;

        if (validateEmailAndPassword()) {
            const userId = findUserIdForEmail(email);

            const jwtBearerToken = jwt.sign({}, RSA_PRIVATE_KEY, {
                algorithm: 'RS256',
                expiresIn: 120,
                subject: userId
            });
            // res.cookie("SESSIONID", jwtBearerToken, {httpOnly: true, secure: true});

            res.status(300).json({
                idToken: jwtBearerToken,
                expiresIn: ""
            })
        } else {
            res.sendStatus(401);
        }
}

Answer 1

You want to lower case 'Request', 'Response', and 'Application'.

When i run this code:

console.log('a',express.application);
console.log('A',express.Application);

console.log('req',express.request);
console.log('Req',express.Request);

console.log('res',express.response);
console.log('Res',express.Response);

I get undefined for the 'A', 'Req', and 'Res'.

(I would have made this a comment, but I cannot leave comments.)