How to include JSON in the form field using AFHTTPRequestOperation - ios

Question

I'm trying to use an AFHTTPRequestOperation (via an AFHTTPRequestOperationManager) to transmit some information (say, "foo = bar") to an backend expecting JSON, using a setup like this:
- (void) postTest {
NSString *completePath = #"https://httpbin.org/post";
NSDictionary *dataToJSONfy = #{#"foo":#"bar"};
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject: dataToJSONfy options:kNilOptions error:&error];
NSMutableURLRequest *request = [self.requestSerializer requestWithMethod:#"POST" URLString:completePath parameters:nil];
request.cachePolicy = NSURLRequestReloadIgnoringLocalAndRemoteCacheData;
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:jsonData];
AFHTTPRequestOperation *operation =
[self HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id JSON) {
NSLog(#"... success! %#", JSON);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"... failure! Error: %#", error);
}];
[self.operationQueue addOperation:operation];
}
Which shows up like this
{
args = {
};
data = "{\"foo\":\"bar\"}";
files = {
};
form = {
};
headers = {
[...]
};
json = {
foo = bar;
};
origin = [...];
url = "http://httpbin.org/post";
}
Question: what would I need to change in order to include my information ("foo = bar;") in the 'form =' section of the body rather than the 'json =' bit?

Answer 1

I want to include valid JSON (e.g. some server response stored earlier) in the post, but as per API specification, everything's supposed to be located under the 'form = {};' part. So I guess I want JSON as formdata.
NSData *jsonData = [NSJSONSerialization dataWithJSONObject: dataToJSONfy options:kNilOptions error:&error];
//new!
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSString *bodyString = [NSString stringWithFormat:#"{'Form': '%#'}, jsonString]; //! not 100% what you want. I stick with valid JSON here
NSData *bodyData = [bodyString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableURLRequest *request = [self.requestSerializer requestWithMethod:#"POST" URLString:completePath parameters:nil];
request.cachePolicy = NSURLRequestReloadIgnoringLocalAndRemoteCacheData;
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:bodyData]; //!

Answer 2

first you need to declare nsdictionary block just after the postTest method like
__block NSDictionary *dict=[NSDictionary alloc] init];
and in success block you should use
dict=[NSJSONSerlization JSONObjectWithData:JSON options:NSJSONReadingAllowFragments error:nil];
NSLog(#"... success! %#", dict);