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

Thought I may as well provide my workaround as an answer, as I don't think there's a good solution to the original problem.

The plus sign (+) is completely valid in a URL, so my solution was to convert the time to GMT and remove the timezone/DST offset from the string. I'll leave it as an exercise for the reader to determine the value of secondsFromGMT below as, in my case, it's always the same because I'm only interested in timestamps generated by a web server.

NSString *gmtWhen = [[self descriptionWithCalendarFormat:nil
                           timeZone:[NSTimeZone
                           timeZoneForSecondsFromGMT:secondsFromGMT
                     ] locale:nil] stringByReplacingOccurrencesOfString:@" +0000" withString:@""];