AFNetworking空请求正文

Question

I am trying to make a simple request with the new AFNetworking 2.0 release and I cannot seem to get it to post. I get a response back from the server "Expecting text/json or application/json body" but according to the documentation on AFNetworking's GitHub page, I'm doing everything as I should be. It's also worth mentioning that it appears the operation.request.HTTPBody in the last line of my code always appears to be nil.

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *request = @{@"email": self.email.text, @"password": self.password.text};
[manager POST:login parameters:request constructingBodyWithBlock:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
  NSLog(@"DONE!");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Failed to log in: %@", operation.responseString);
    NSLog(@"Here's the request: %@", operation.request.HTTPBody);
}];

Answer 1

According to the documentation

POST:parameters:constructingBodyWithBlock:success:failure

is for multipart POST requests and its default serialized is not JSON.

Creates and runs an AFHTTPRequestOperation with a multipart POST request.

You want to use

POST:parameters:success:failure:

instead, as follows

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSDictionary *request = @{@"email": self.email.text, @"password": self.password.text};
[manager POST:login parameters:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
  NSLog(@"DONE!");
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Failed to log in: %@", operation.responseString);
}];

Answer 2

Try

- (AFHTTPRequestOperation *)POST:(NSString *)URLString parameters:(NSDictionary *)parameters success:(void ( ^ ) ( AFHTTPRequestOperation *operation , id responseObject ))success failure:(void ( ^ ) ( AFHTTPRequestOperation *operation , NSError *error ))failure

This method don't require the constructBody block. I don't think the block can be nil.