HTTP - Body (Entity, payload, data sent)

Entities are the data sent with an HTTP message:

• HTML page
• Image
• Web form parameters

An entity is better known as the body or in a network context, this is the payload of the message.

The entity of an HTTP message can have an arbitrary data format, which is usually specified as a MIME type in a header field. Accept → text/css,*/*;q=0.1 ?

A response can contain:

• the page
• an image you are downloading as an entity,

Or a request can include the parameters that you entered into a web form.