Json.Net custom serialization - asp.net-mvc

Question

[
{
"articles": [
[
"2016-03-04",
6
],
[
"2016-03-05",
10
],
[
"2016-03-06",
11
]
],
"accession": "00000446-201301000-00018"
},
{
"articles": [
[
"2016-03-04",
1
],
[
"2016-03-08",
17
],
[
"2016-03-09",
10
]
],
"accession": "00000446-201301000-00019"
}]
List is input { "Accession"= "00000446-201301000-00018", "Date"= "635926464000000000","Rank" =2},{ "Accession" = "00000446-201301000-00019", "Date" = "635931648000000000","Rank" = 2}
I want json data exactly like this,data is coming from list and list is dynamically growing.Form list, I want all dates and rank club to gether for the same accession number.
I want to use newtonsoft json custom serlization to convert my list to json.

Answer 1

What you want to do does not need any Custom Formatter, you just have to re-structure your data, Here is an example for restructuring a list based on Entity class to the new required one.
class Entity
{
public string Accession { get; set; }
public string Date { get; set; }
public int Rank { get; set; }
}
Add this line if you need to read the list from Json
var list = JsonConvert.DeserializeObject<List<Entity>>(input);
Here is the code for changing the structure of data to array based articles.
var translatedAsArray = list.GroupBy(e => e.Accession)
.Select(g =>
new {
//change new 'object[]' to 'new' to make the article an object
//you can convert i.Date, i.Rank and g.Key to anything you want here
Articles = g.Select(i => new object[] { i.Date , i.Rank }),
Accessing = g.Key
}
);
var json = JsonConvert.SerializeObject(translatedAsArray, Formatting.Indented);

Answer 2

Model
public class FinalList
{
public string accession {get;set;}
public List<ArticlesDetails> Articles{get;set;}
}
public class ArticlesDetails
{
public DateTime Date{get;set;}
public int number{get;set;}
}
Use ObjectContent instead of StringContent so we let the formatter (i.e. JsonMediaTypeFormatter) to deal with the serialization and deserialization
In config
config.Formatters.Insert(0, new YourCustomFormatter());
config.Formatters.Insert(1, new JsonMediaTypeFormatter());
and disable post in your custom formatter so that JsonMediaTypeFormatter desrializes the complex data