TheBrahminCoder - How to get Data from routes in express JS

 There are two ways to get data from routes in Express.js:

• GET requests: You can get data from GET requests by using the req.query object. This object contains all of the query parameters that were passed in the URL. For example, if you have a route that is defined as /users?name=John&age=25, you can get the value of the name query parameter by using the following code:

Code snippet

const name = req.query.name;

• POST requests: You can get data from POST requests by using the req.body object. This object contains the body of the POST request, which is usually in JSON format. For example, if you have a POST request that is defined as /users, and the body of the request is {"name": "John", "age": 25}, you can get the value of the name property by using the following code:

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const name = req.body.name;

Here is an example of how to get data from routes in Express.js:

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

app.get("/users", (req, res) => {
  const name = req.query.name;
  const age = req.query.age;

  res.send(`Your name is ${name} and you are ${age} years old.`);
});

app.post("/users", (req, res) => {
  const name = req.body.name;
  const age = req.body.age;

  res.send(`Your name is ${name} and you are ${age} years old.`);
});

app.listen(3000);

This code will create two routes:

• /users: This route will get the name and age query parameters from the URL and send them back in the response.
• /users: This route will get the name and age properties from the body of the POST request and send them back in the response.

To run this code, you can save it as a file called index.js and then run the following command in your terminal:

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node index.js

This will start the Express server on port 3000. You can then test the routes by making requests to them in your browser. For example, you can make a GET request to http://localhost:3000/users?name=John&age=25 to get the name and age of John. You can also make a POST request to http://localhost:3000/users with the body {"name": "John", "age": 25} to get the name and age of John.