Using a JSON array received as a string

Question

I'm receiving a string, output, that looks like this:

{family_name:XXX, given_name:XXX, locale:en, name:XXX, picture:XXX, profile:XXX, sub:XXX}

I'd like to get some of these values and store them in variables, but since it's a string I cant use indexing (I would've just used var x = output[0] etc)

How would I get a hold of these values?

Thanks in advance

You can use json.net to deserialize the json string into an object (the easy way), or the classes in Newtonsoft.Json.linq to parse it manually. — Zohar Peled
– Zohar Peled, Commented Dec 27, 2018 at 13:54
You will have to de-serialize the string using a json parser such as json.net or javascriptserializer provided with .net framework. — shahkalpesh
– shahkalpesh, Commented Dec 27, 2018 at 13:55
A JSON string would have quotes around the names and values. Have you removed those quotes or are they not there? ecma-international.org/publications/files/ECMA-ST/ECMA-404.pdf This question covers answers regarding C# stackoverflow.com/q/6620165/125981 — Mark Schultheiss
– Mark Schultheiss, Commented Dec 27, 2018 at 14:07
Possible duplicate of Deserialize JSON into C# dynamic object? — Mark Schultheiss
– Mark Schultheiss, Commented Dec 27, 2018 at 14:14

crellee · Accepted Answer · 2018-12-27 13:58:31Z

4

The structure of the string is a JSON-object. Therefore, you must handle it as a JSON-object. First parse it to JSON. eg. like this:

JObject json = JObject.Parse(YOUR_STRING);

And now to get the given value you wish, for instance family_name you can say:

string name = (string) json["family_name"];

answered Dec 27, 2018 at 13:58

crellee

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Rod Ramírez · Accepted Answer · 2018-12-27 14:12:16Z

1

I would recomend Json.Net.

Parse your string to json, and create a model that can hold those JSON values as

public class Person
{
    public string family_name {get;set}
    public string given_name {get;set;}
    public List<string> siblings{get;set;}
}

(This could be done with https://quicktype.io/csharp/ or manually)

Then:

string json = @"{
  'family_name': 'Foo',
  'given_name': 'Bar',
  'siblings': [
    'Jhon',
    'Doe'
  ]
}";

Person person = JsonConvert.Deserialize<Person>(json);

string familyName = person.family_name;
//Foo

answered Dec 27, 2018 at 14:12

Rod Ramírez

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