Express.js - pass path parameter

In this article, we would like to show you how to get the path parameter in Express.js. 

Quick solution:

app.get('/path/to/resource/:parameterName', (request, response) => {
    const parameterName = request.params.parameterName;
    // ...
});

Practical example

In this section, we present a practical example with GET method.

const express = require('express');  // npm install express

const app = express();

app.get('/users/:id', (request, response) => {
    const userId = request.params.id;
    // Do some operations here ...
    response.send(user);
});

app.listen(3000);

Where: when GET request to /users/5 path is performed then request.params.id is set to 5. 

See also

1. Express.js - wildcard parameters in routing path