expressjsHow do I use the expressjs urlencoded middleware?

The expressjs urlencoded middleware is used to parse incoming request bodies which are encoded in URL-encoded format. It is typically used to parse data from HTML forms.

Example code

const express = require('express');
const app = express();

app.use(express.urlencoded({ extended: true }));

The app.use method is used to register the middleware with express. The extended option is set to true to allow for nested objects to be parsed.

The middleware will then parse the request body and make it available as req.body in the request handler.

Example code

app.post('/', (req, res) => {
  console.log(req.body);
});

Output example

{
  name: 'John',
  age: 30
}

The middleware will also parse the query string and make it available as req.query in the request handler.

Example code

app.get('/', (req, res) => {
  console.log(req.query);
});

Output example

{
  name: 'John',
  age: 30
}

Helpful links

• ExpressJS Documentation
• MDN Web Docs - URL Encoding

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