Multipartform Data -Image Uploading - objective-c

Question

I want to uload the image and dictionary to server , i have done something , image is not uploading dictionary is workinfine ,here is my code,
NSData *jsonData = [NSJSONSerialization dataWithJSONObject: dict
options:0
error:nil];
NSString *jsonString =[[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSDictionary *headers = #{ #"content-type": #"multipart/form-data; boundary=---011000010111000001101001",
#"cache-control": #"no-cache",
#"postman-token": #"f93b7bb9-040f-fa7c-8a65-5a4f8e057cfe" };
NSArray *parameters = #[ #{ #"name": #"userDetails", #"value":jsonString }
,#{ #"name": #"userImage", #"fileName":#{#"0":#{}}}
];
NSString *boundary = #"---011000010111000001101001";
NSError *error;
NSMutableString *body = [NSMutableString string];
for (NSDictionary *param in parameters) {
[body appendFormat:#"--%#\r\n", boundary];
if (param[#"fileName"]) {
[body appendFormat:#"Content-Disposition:form-data; name=\"%#\"; fileName=\"%#\"\r\n", param[#"name"], param[#"fileName"]];
[body appendFormat:#"Content-Type: %#\r\n\r\n", param[#"contentType"]];
[body appendFormat:#"%#", [NSString stringWithContentsOfFile:param[#"fileName"] encoding:NSUTF8StringEncoding error:&error]];
if (error) {
NSLog(#"%#", error);
}
} else {
[body appendFormat:#"Content-Disposition:form-data; name=\"%#\"\r\n\r\n", param[#"name"]];
[body appendFormat:#"%#", param[#"value"]];
}
}
[body appendFormat:#"\r\n--%#--\r\n", boundary];
NSData *postData = [body dataUsingEncoding:NSUTF8StringEncoding];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"---.php"]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:10.0];
[request setHTTPMethod:#"POST"];
[request setAllHTTPHeaderFields:headers];
[request setHTTPBody:postData];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
if (error) {
NSLog(#"%#", error);
} else {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;
NSLog(#"%#", httpResponse);
NSString *stringFromData = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"%#",stringFromData);}}];
[dataTask resume];}
i got the msg from server is success,uploaded successfully,but image is not uploaded , i have checked in server ,Please help me to upload the image