Node.js http.ServerResponse.writeProcessing() Method
Last Updated :
05 Apr, 2023
The httpServerResponse.writeProcessing() is an inbuilt application programming interface of class ServerResponse within the HTTP module which is used to send an HTTP/1.1 102 Processing message to the client.
Syntax:
response.writeProcessing()
Parameters: This method does not accept any arguments as a parameter.
Return Value: This method has nothing to return.
Example 1: Filename-index.js
JavaScript
// Node.js program to demonstrate the
// response.writeProcessing() method
// Importing http module
const http = require('http');
// Setting up PORT
const PORT = process.env.PORT || 3000;
// Creating http Server
const httpServer = http.createServer(
function (request, response) {
// Sending a HTTP/1.1 102 Processing message
// by using writeProcessing method
response.writeProcessing();
// Display result
// by using end() method
response.end("HTTP/1.1 102 Processing message"
+ " has been sent", 'utf8', () => {
console.log("displaying the result...");
httpServer.close(() => {
console.log("server is closed")
})
});
});
// Listening to http Server
httpServer.listen(PORT, () => {
console.log("Server is running at port 3000...");
});
Run the index.js file using the following command:
node index.js
Output:
Server is running at port 3000...
displaying the result...
server is closed
Now run http://localhost:3000/ in the browser and you will see the following output on screen:
HTTP/1.1 102 Processing message has been sent
Example 2: Filename-index.js
JavaScript
// Node.js program to demonstrate the
// response.writeProcessing() method
// Importing http module
const http = require('http');
// Request and response handler
const http2Handlers = (request, response) => {
// Sending a HTTP/1.1 102 Processing message
// by using writeProcessing method
response.writeProcessing();
// Display result
// by using end() method
response.end("HTTP/1.1 102 Processing message"
+ " has been sent", 'utf8', () => {
console.log("displaying the result...");
httpServer.close(() => {
console.log("server is closed")
})
});
};
// Creating http Server
const httpServer = http.createServer(
http2Handlers).listen(3000, () => {
console.log("Server is running at port 3000...");
});
Run the index.js file using the following command:
node index.js
Output:
Server is running at port 3000...
displaying the result...
server is closed
Now run http://localhost:3000/ in the browser and you will see the following output on the screen:
HTTP/1.1 102 Processing message has been sent
Reference: https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_response_writeprocessing
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