Node.js http.IncomingMessage.rawTrailers Method

The http.IncomingMessage.rawTrailers is an inbuilt application programming interface of class IncomingMessage within HTTP module which is used to get the raw request/response trailer keys and values exactly as they were received.

Syntax:

const message.rawTrailers

Parameters: This method does not accept any argument as a parameter.

Return Value: This method returns the raw request/response trailer keys and values exactly as they were received.

Example 1: Filename: index.js

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 go to http://localhost:3000/ in the browser, and you will see the following output:

rawTrailers 

Example 2: Filename: index.js

Run the index.js file using the following command.

node index.js

Output:

Server is running at port 3000...
No rawTrailers added
displaying the result...
server is closed

Now go to http://localhost:3000/ in the browser, and you will see the following output:

rawTrailers 

Reference: https://nodejs.org/dist/latest-v12.x/docs/api/http.html#http_message_rawtrailers