Stores some information about a request when it arrives the server.

Structure Fields:

• method: a string with the HTTP request method.
• body: a string with the body of the request.
• headers: a map with the request headers.
• path: a string with the request path.
• cookies: a map with the request cookies.
• query_string: a string with the query_string.
• query: a map with each one of the parameters from the query string.