Encoding JSON
An important detail for sending JSON to a Ruby on Rails server is to encode the data so that it mirrors what the Rails server provides. When sending a new message to the server, it should have the same structure as an individual message received in the message list. To do this, a dictionary with the attribute names and values for the message is needed, and then a wrapper dictionary with the key “message” pointing to the attribute dictionary. This will exactly mirror what the server sends for a message. In the saveButtonTouched: method set up this dictionary, like so:
NSMutableDictionary *messageDictionary =[NSMutableDictionary dictionaryWithCapacity:1];[messageDictionary setObject:[nameTextField text ...
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