How can transform this Postman Request into iOs Code

Question

I got the following Postman request which works fine (Screenshot http://postimg.org/image/s7zm3qhvh/). But when i try the same in iOS it will not work. Maybe someone can give me some information why.

My Objective-c Code:

UIImage *yourImage= [UIImage imageNamed:@"login-main-bg.png"];


NSString *imageString = [UIImagePNGRepresentation(yourImage) base64Encoding];

NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:
                      imageString, @"image",
                      nil];
NSError *error;

NSData* jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
if (error) {
    NSLog(@"%@",[error localizedDescription]);
}
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[jsonData length]];

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:@"http://server.website.net/api/collaboration/ImageTest"]];
[request setHTTPMethod:@"POST"];
[request setValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setHTTPBody:jsonData];

 //print json:
NSLog(@"JSON summary: %@", [[NSString alloc] initWithData:jsonData
                            encoding:NSUTF8StringEncoding]);
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection start];

I hope someone can help me! Thank you!

What errors are you getting? What is the actual outcome and what is the expected outcome. Without details people will have to guess at the problem. — Robotic Cat, Jan 08 '15 at 01:27
The problem is the only information i have are these. The other developer provided me only this. I don't get an error or anything back that was the reason why i asked this question. I read through other stackoverflow posts but they can't help. I thought someone will see the problem. But thanks for randomly voting it down! — tobe.bryant, Jan 08 '15 at 02:44

score 0 · Accepted Answer · edited May 23 '17 at 10:26

0

You're posting a json representation of a base64 encoded string of your image. The postman request is doing a raw binary post with multipart form boundaries.

You want something more like what is shown here https://stackoverflow.com/a/23517227/96683

edited May 23 '17 at 10:26

Community

1
1

answered Jan 08 '15 at 01:23

jsd

7,673
5
27
47

thanx man that helps me! I will let you know if this fixed my issue! – tobe.bryant Jan 08 '15 at 02:45
@jsd, I asked a [similar question](https://stackoverflow.com/questions/48940176/status-code-400-when-converting-postman-request-into-objective-c) here. I'm also having trouble converting a Postman request to Objective-C code. Would you mind taking a look at my question? – fi12 Feb 23 '18 at 02:21

How can transform this Postman Request into iOs Code

1 Answers1