Feedly Mark as Read not working on Objective-C - ios

Question

I'm trying to implement a method in my iOS app to mark an article as read using the Feedly API. However, I keep getting error responses:
{
"errorCode": 400,
"errorId": "sandbox-he.2015010906.2770040",
"errorMessage": "no data"
}
This is the method:
- (void)markRead:(NSString*)articleID {
NSLog(#"Artidle ID is: %#", articleID);
NSUserDefaults *standardUserDefaults = [NSUserDefaults standardUserDefaults];
NSString *accessToken = [standardUserDefaults objectForKey:#"AccessToken"];
NSString *feedUrl = [NSURL URLWithString:#"https://sandbox.feedly.com/v3/markers"];
NSError *error = nil;
NSString *post =[[NSString alloc] initWithFormat:#"action=markAsRead&type=entries&entryIds=%#",articleID];
NSLog(#"PostData: %#",post);
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:feedUrl];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-type"];
[request setHTTPBody:postData];
[request addValue:accessToken forHTTPHeaderField:#"Authorization"];
//[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[url host]];
NSError *errror = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&errror];
NSLog(#"Response code: %ld", (long)[response statusCode]);
if ([response statusCode] >= 200 && [response statusCode] < 300)
{
NSLog(#"Success marking this as read.");
} else {
if (error) NSLog(#"Error: %#", errror);
NSLog(#"No success marking this as read.");
}
}
The Feedly API describes that it requires this as input:
{
"entryIds": [
"TSxGHgRh4oAiHxRU9TgPrpYvYVBPjipkmUVSHGYCTY0=_14499073085:c034:d32dab1f",
"TSxGHgRh4oAiHxRU9TgPrpYvYVBPjipkmUVSHGYCTY0=_1449255d60a:22c3491:9c6d71ab"
],
"action": "markAsRead",
"type": "entries"
}
In my opinion I'm providing this as input, so I actually expected a proper response. However, I keep getting 400 and can't seem to figure out what I'm doing wrong. I've been busting my head for hours on this.

Answer 1

Instead of using your current body data, try creating the data with following code:
NSDictionary *bodyDict = [NSDictionary dictionaryWithObjectsAndKeys:#[articleID],#"entryIds",
#"markAsRead",#"action",
#"entries",#"type", nil];
NSError *error;
NSData *postdata = [NSJSONSerialization dataWithJSONObject:bodyDict options:0 error:&error];
[request setHTTPBody:postData];
This will send the body as a JSON object.
Sending parameter like you did (with action=markAsRead&type=entries&entryIds=%#) is usually used when calling a web method with the GET request method. Take a look at POST vs GET for a better understanding.