Modern era update, as stated by mimoralea: In case that you are using ruby 2.0 or 2.2 (thanks @patrick-davey). sudo apt-get install ruby2.0-dev sudo apt-get install ruby2.2-dev sudo apt-get install ruby2.3-dev or, generic way: sudo apt-get install ruby-dev or sudo apt-get install ruby`ruby -e ‘puts RUBY_VERSION[/\d+\.\d+/]’`-dev The first link you’ve posted is exactly your case: … Read more
function isJson($string) { json_decode($string); return json_last_error() === JSON_ERROR_NONE; }
Method to deserialize generic collection: import java.lang.reflect.Type; import com.google.gson.reflect.TypeToken; … Type listType = new TypeToken<ArrayList<YourClass>>(){}.getType(); List<YourClass> yourClassList = new Gson().fromJson(jsonArray, listType); Since several people in the comments have mentioned it, here’s an explanation of how the TypeToken class is being used. The construction new TypeToken<…>() {}.getType() captures a compile-time type (between the < and >) … Read more
Your code produced an empty response body, you’d want to check for that or catch the exception raised. It is possible the server responded with a 204 No Content response, or a non-200-range status code was returned (404 Not Found, etc.). Check for this. Note: There is no need to use simplejson library, the same … Read more
JsonIgnoreProperties [2017 Update]: You can now use JsonIgnoreProperties to suppress serialization of properties (during serialization), or ignore processing of JSON properties read (during deserialization). If this is not what you’re looking for, please keep reading below. (Thanks to As Zammel AlaaEddine for pointing this out). JsonManagedReference and JsonBackReference Since Jackson 1.6 you can use two … Read more
Using org.json library: try { JSONObject jsonObject = new JSONObject(“{\”phonetype\”:\”N95\”,\”cat\”:\”WP\”}”); }catch (JSONException err){ Log.d(“Error”, err.toString()); }
In this document Google JSON Style Guide (recommendations for building JSON APIs at Google), It recommends that: Property names must be camelCased, ASCII strings. The first character must be a letter, an underscore (_), or a dollar sign ($). Example: { “thisPropertyIsAnIdentifier”: “identifier value” } My team consistently follows this convention when building REST APIs. … Read more
JSON.stringify‘s third parameter defines white-space insertion for pretty-printing. It can be a string or a number (number of spaces). Node can write to your filesystem with fs. Example: var fs = require(‘fs’); fs.writeFile(‘test.json’, JSON.stringify({ a:1, b:2, c:3 }, null, 4)); /* test.json: { “a”: 1, “b”: 2, “c”: 3, } */ See the JSON.stringify() docs … Read more
I am assuming you are not using Json.NET (Newtonsoft.Json NuGet package). If this the case, then you should try it. It has the following features: LINQ to JSON The JsonSerializer for quickly converting your .NET objects to JSON and back again Json.NET can optionally produce well formatted, indented JSON for debugging or display Attributes like … Read more
JSON stands for JavaScript Object Notation. A JSON object is really a string that has yet to be turned into the object it represents. To add a property to an existing object in JS you could do the following. object[“property”] = value; or object.property = value; If you provide some extra info like exactly what … Read more