Express.js req.accepts() Method

The req.accepts() method checks if the specified content-types are acceptable by the request's Accept HTTP header fields. This method returns the best match, and returns False if none of the specified content types is acceptable.

The type values can be a MIME type like application/json, or an extension name like json.

Syntax

req.accepts( types )

Example 1

Create a file with the name "reqAccepts.js" and copy the following code snippet. After creating the file, use the command "node reqAccepts.js" to run this code as shown in the example below −

// req.accepts() Method Demo Example
// Importing the express module
var express = require('express');

// Initializing the express and port number
var app = express();
var PORT = 3000;

// Defining an endpoint with req.accepts() fn
app.get('/', function (req, res) {
   console.log(req.get('Accept'));
   console.log(req.accepts('application/json'));
   res.end();
});
app.listen(PORT, function(err){
   if (err) console.log(err);
   console.log("Server listening on PORT", PORT);
});

Output

Hit the Endpoint localhost:3000/ with a GET request and set the content-type as 'application/json' and Accept as 'application/json'

C:\home
ode>> node reqAccepts.js
Server listening on PORT 3000
application/json
application/json

Example 2

Let's take a look at one more example.

// req.accepts() Method Demo Example
// Importing the express module
var express = require('express');

// Initializing the express and port number
var app = express();
var PORT = 3000;

// Defining an endpoint with req.accepts() fn
app.get('/', function (req, res) {
   console.log(req.get('Accept'));
   console.log(req.accepts('text/html'));
   res.end();
});
app.listen(PORT, function(err){
   if (err) console.log(err);
   console.log("Server listening on PORT", PORT);
});

Output

Hit the Endpoint localhost:3000/ with a GET request and set the content-type as 'text/plain' and Accept as 'text/plain'

C:\home
ode>> node reqAccepts.js
Server listening on PORT 3000
text/plain
false