json2csharp

Generate C# classes from a json.

Installation

npm install json2csharp

Usage

import json2csharp from "json2csharp";

const src = `{ 
    "name": "jgondev",
    "age": 32,
    "packages": [
        {
            "name": "json2csharp",
            "release": "2023-01-17T22:29:26.503Z"
        }
    ],
    "keywords": [
        "json",
        "csharp"
    ]
 }`;

const result = json2csharp(src);

Result

using System;
public class Root
{
    public string Name { get; set; }
    public int Age { get; set; }
    public PackagesItem[] Packages { get; set; }
    public string[] Keywords { get; set; }      
}

public class PackagesItem
{
    public string Name { get; set; }
    public DateTime Release { get; set; }
}

Newtonsoft Annotations

json2csharp method accepts a second parameter to provide Newtonsoft annotations const result = json2csharp(src, true);

using System;
using Newtonsoft.Json;

public class Root
{
    [JsonProperty("name")]
    public string Name { get; set; }

    [JsonProperty("age")]
    public int Age { get; set; }

    [JsonProperty("packages")]
    public PackagesItem[] Packages { get; set; }

    [JsonProperty("keywords")]
    public string[] Keywords { get; set; }
}

public class PackagesItem
{
    [JsonProperty("name")]
    public string Name { get; set; }

    [JsonProperty("release")]
    public DateTime Release { get; set; }
}

Classes model

json2csharp is internally calling another method to model the json classes that is then used to generate the classes file.This method is called json2classes and you can import and use it like this:

import { json2classes } from "json2csharp";

const jsonSrc = [...]

const result = json2classes(jsonSrc);

Result

[
   {
      "key":"root",
      "props":[
         {
            "type":"string",
            "name":"name"
         },
         {
            "type":"int",
            "name":"age"
         },
         {
            "type":"PackagesItem[]",
            "name":"packages"
         },
         {
            "type":"string[]",
            "name":"keywords"
         }
      ]
   },
   {
      "key":"packagesItem",
      "props":[
         {
            "type":"string",
            "name":"name"
         },
         {
            "type":"DateTime",
            "name":"release"
         }
      ]
   }
]