I have piece of good working code that downloads and parses JSON from server and returns result in +JSONRequestOperationWithRequest:success:failure: of AFJSONRequestOperation. success (and also failure)part of method takes block as an argument with id JSON argument in it. If I understand right - this object is for representation of JSON file or it's content. I need to have a possibility to send this JSON file (or it's text representation in every other text format) to email, using MFMailComposeViewController. So, two questions:
how can I get this JSON content from this file?
You can get the JSON data response (before it's converted to Foundation objects by NSJSONSerialization) from
operation.responseString (as NSString), oroperation.responseData (as NSData).You'll want the latter if you're going to attach it to an e-mail.
do I need register .json filetype to have possibility to send it using MFMailComposeViewController?
You need to call [MFMailComposeViewController -addAttachmentData:mimeType:fileName:]. You can get the mime-type from the operation.response.allHeaderFields NSDictionary. You can also use the official standard, application/json, or text/json, which is commonly used as well.