Make an NSURL with an encoded plus (+)

Question

I need to pass a timestamp with a timezone offset in a GET request, e.g.,

2009-05-04T11:22:00+01:00

This looks like a two arguments

Answer 1

What worked for me was doing the UTF8 conversion, then replacing the + sign with %2B:

NSString *urlString =
    [NSString stringWithFormat:@"%@/iphone/push/create?pn[token]=%@&pn[send_at]=%@",
     kHTTPURL, appDelegate.deviceAPNToken, [dateTimeToUse description]];

urlString =
    [[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]
     stringByReplacingOccurrencesOfString:@"+" withString:@"%2B"];