AFNetworking源码探究（十五） —— 请求序列化之架构分析

/**
 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`.
 */
@protocol AFURLRequestSerialization <NSObject, NSSecureCoding, NSCopying>

/**
 Returns a request with the specified parameters encoded into a copy of the original request.

 @param request The original request.
 @param parameters The parameters to be encoded.
 @param error The error that occurred while attempting to encode the request parameters.

 @return A serialized request.
 */
- (nullable NSURLRequest *)requestBySerializingRequest:(NSURLRequest *)request
                               withParameters:(nullable id)parameters
                                        error:(NSError * _Nullable __autoreleasing *)error NS_SWIFT_NOTHROW;

@end