setting content-type overwriting httpbody?

Question

I'm having a weird issue calling an API from my ios app. I create a post request

NSMutableURLRequest *request = [NSMutableURLRequest
                                requestWithURL:url
                                   cachePolicy:NSURLRequestUseProtocolCachePolicy
                               timeoutInterval:5.0];
[request setHTTPMethod:@"POST"];

I then create json to send to the request and add it to the body of the request like so:

[request setHTTPBody:encodedData];

Finally, I am adding a few cookies which I then set with:

NSArray* cookieArray = [NSArray arrayWithObjects: sessionCookie, uidCookie, vidCookie, nil];
NSDictionary * headers = [NSHTTPCookie requestHeaderFieldsWithCookies:cookieArray];
[request setAllHTTPHeaderFields:headers];

This all works fine. However, since I am sending json I'm trying to be good and also set the content type with this line of code:

[request setValue:@"application/json; charset=utf-8" forHTTPHeaderField: @"Content-Type"];

As soon as I add this line of code, the data I sent to the body of the request no longer gets passed as part of the request. Does this sound like behavior anyone else has experienced?

What if you set the header before setting the body? – tc. Mar 07 '13 at 03:00 — tc., Mar 07 '13 at 03:00
Tried that, no dice. Thanks anyway. – Cheryl Yaeger Mar 07 '13 at 21:30 — Cheryl Yaeger, Mar 07 '13 at 21:30
Have you verified what's going on with a packet sniffer? – tc. Mar 08 '13 at 02:32 — tc., Mar 08 '13 at 02:32
Have you managed to solve that? – Abdalrahman Shatou Jun 22 '14 at 21:51 — Abdalrahman Shatou, Jun 22 '14 at 21:51

score 3 · Answer 1 · edited May 23 '17 at 11:44

3

I am also using

[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];

Check this explanation What does "Content-type: application/json; charset=utf-8" really mean?

edited May 23 '17 at 11:44

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answered Mar 06 '13 at 22:18

user1509593

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setting content-type overwriting httpbody?

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