Afnetworking post array

Question

I am trying to publish an array as a post instead of a dictionary. However, I get the error message:

Incompatible pointer types sending NSMutableArray to parameter of type NSDictionary

Here is the code

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSMutableArray *parameters = @[@"foo", @"bar"];
[manager POST:@"http://example.com/resources.json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

How can I post just contents of arrays?

Update:

This code works, but I would rather get the answer below, working as its cleaner, and af will handle serialization. I assume the request body is different, but how do you know what the body is?

  NSError *error;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:parameters
                                                       options:NSJSONWritingPrettyPrinted
                                                         error:&error];
    NSString *body = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];


    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://example.com/resources.json"]
                                                           cachePolicy:NSURLRequestReloadIgnoringCacheData  timeoutInterval:10];

    [request setHTTPMethod:@"POST"];
    [request setValue: @"application/json" forHTTPHeaderField:@"Content-Type"];
    [request setHTTPBody: [body dataUsingEncoding:NSUTF8StringEncoding]];

    AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request];
    op.responseSerializer = [AFJSONResponseSerializer serializer];
    [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

        NSLog(@"JSON responseObject: %@ ",responseObject);

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"Error: %@", [error localizedDescription]);

    }];
    [op start];

Answer 1

I assume that you want fooand barbe your parameters without any values? if so, you will want to do something like this

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
NSMutableArray *parameters = @[@"foo", @"bar"];
NSDictionary *params = [[NSDictionary alloc] initWithObjects:@[[NSNull null], [NSNull null]] forKeys:parameters];
[manager POST:@"http://example.com/resources.json" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

EDIT Try adding

manager.requestSerializer = [AFJSONRequestSerializer serializer];
manager.responseSerializer = [AFJSONResponseSerializer serializer];