Express.js express.text() Function

The express.text() function is a built-in middleware function in Express. It parses the incoming request payloads into a string and is based on body-parser.

Syntax:

express.text( [options] )

Parameter: The options parameter contains various property like defaultCharset, inflate, limit, verify etc.

Return Value: It retuns an Object.

Installation of express module:



  1. You can visit the link to Install express module. You can install this package by using this command.
    npm install express
  2. After installing the express module, you can check your express version in command prompt using the command.
    npm version express
  3. After that, you can just create a folder and add a file for example, index.js. To run this file you need to run the following command.
    node index.js

Example 1: Filename: index.js

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var express = require('express');
var app = express();
var PORT = 3000;
  
app.use(express.text());
    
app.post('/', function (req, res) {
    console.log(req.body);
    res.end();
})
  
app.listen(PORT, function(err){
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});

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Steps to run the program:

  1. The project structure will look like this:
  2. Make sure you have installed express module using the following command:
    npm install express
  3. Run index.js file using below command:
    node index.js

    Output:

    Server listening on PORT 3000
    
  4. Now make a POST request to http://localhost:3000/ with header set to ‘content-type: text/plain’ and body {“title”:”GeeksforGeeks”}, then you will see the following output on your console:
    Server listening on PORT 3000
    {"title":"GeeksforGeeks"}
    

Example 2: Filename: index.js

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var express = require('express');
var app = express();
var PORT = 3000;
  
// Without this middlware
// app.use(express.text());
app.post('/', function (req, res) {
    console.log(req.body);
    res.end();
})
  
app.listen(PORT, function(err){
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});

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Run index.js file using below command:

node index.js

Now make a POST request to http://localhost:3000/ with header set to ‘content-type: text/plain’ and body {“title”:”GeeksforGeeks”}, then you will see the following output on your console:

Server listening on PORT 3000
undefined

Reference: https://expressjs.com/en/4x/api.html#express.text




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