Protocols

The AFURLRequestSerialization protocol is adopted by an object that encodes parameters for a specified HTTP requests. Request serializers may encode parameters as query strings, HTTP bodies, setting the appropriate HTTP header fields as necessary.

For example, a JSON request serializer may set the HTTP body of the request to a JSON representation, and set the Content-Type HTTP header field value to application/json.

The AFMultipartFormData protocol defines the methods supported by the parameter in the block argument of AFHTTPRequestSerializer -multipartFormRequestWithMethod:URLString:parameters:constructingBodyWithBlock:.

The AFURLResponseSerialization protocol is adopted by an object that decodes data into a more useful object representation, according to details in the server response. Response serializers may additionally perform validation on the incoming response and data.

For example, a JSON response serializer may check for an acceptable status code (2XX range) and content type (application/json), decoding a valid JSON response into an object.