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Now you'll able to send it to your server. Using the NSJSONSerialization swift function, you'll able to convert your data structure into the json data format. Let data_string = NSString(data: json, encoding:NSUTF8StringEncoding) Let json = try NSJSONSerialization.dataWithJSONObject(send_data, options: NSJSONWritingOptions(rawValue: 0)) Let's open the ViewController.swift file and define the send_and_parse_json function. In this example I've prepared a simple server side script that get the posted data and just reply it out. Once the data is parsed as a json element, you'll able to send it as a string to the server. In this example we'll send an object with the following structure: request- some_extra_data. You'll see now how to parse a data structure and send it as a json String to an external server. Json parsing: let's parse and send the json data to an external server Search for the ist file, right click on it, choose open as - source code and add the following lines. In this example the http protocol is used in order to send and receive the data from this protocol, in swift 2 you'll need to enable it. Open Swift and create a new iOS single view app. In the second part of this tutorial, you'll see how to extract the json data by using the NSDictionary and NSArray data type. You'll see how to prepare the array of objects to send and how to do the data parsing into the json format. In this new swift 2 tutorial you'll learn how to parse json data structure in order to send complex data structure as a String to an external server. To do this we use the following code: if let dataFromJsonString = jsonString?.data(using. Now that we have converted our object to JSON, let's convert the JSON back to an object. This is going to be a simple struct called City, it will have one property called name, which will be the name of the city.Ĭreate the following Struct: struct City: Codable "), perfect! We have successfully converted our object to a JSON string. In this tutorial we will take a look at how we can convert a swift object to a JSON string and how to convert the JSON string to a swift object.įirst, let's create our struct. There could be a few reasons why you would want to convert a swift object to JSON.