Here, the client app and server function like two computers. In real-time and web apps where your program needs to interact with external or internal servers and fetch data to a client app, HTTP requests in Node.js must be executed. On the contrary, if you use a POST method to send data to a server using an HTTP request, you must include a message about the data posting instructions. For example, you do not need to include a message body if you call an HTTP request for the GET method. It is not mandatory for all the request methods. The text content of an HTTP message is the entity-body or message body. Then you must use the following header: Accept-Language: en, frIf-Modified-Since: Tue, 10:00:00 GMT Message Body It tells the recipient server what the message is, the sender’s information, and the method of communication.įor example, you want your app to fetch documents that have been updated on at 10:00:00 GMT in English and French. To help the recipient with vital information about the request, you need to put a header message. GET /applications/htp/cics/index.html HTTP/1.1 HTTP Headers Between the method and HTTP version, there should be a path or location of the resource on the target server. For example, the regular request methods are GET, HEAD, POST, PUT, CONNECT, etc. It, however, comprises three other elements like the request method, request path, and the HTTP version.Ī request method is usually a one-word command for the server. In an HTTP request message, the request line is the first item.
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