How to Convert JSON into Dart Class
Tags: flutter, jsontodart, dart, json
Published: 2021-07-06 08:23:04

After a lot of Research I find a Amazing Tool which can save my 40 Minutes to convert JSON into Dart class manually. Here is one Online Tool <a href="https://www.dripcoding.com/json-to-dart/">JSON to Dart Convert</a> which can convert json response into dart class on button click. It is really very simple to use.
I am Getting JSON response from the Server. The JSON response is very complex. I want to access the value of "min" and "max" inside the "RIFUSD" List. Below is the JSON response which I am getting from server.
<code>
{
  "RIFUSD": [
    {
      "timestamp": "2021-02-13T16:00:00.000Z",
      "open": "0.3257370",
      "close": "0.3257370",
      "min": "0.3257370",
      "max": "0.3257370",
      "volume": "49",
      "volumeQuote": "15.9611130"
    },
    {
      "timestamp": "2021-02-13T12:00:00.000Z",
      "open": "0.3015120",
      "close": "0.3216128",
      "min": "0.3015120",
      "max": "0.3216768",
      "volume": "4079",
      "volumeQuote": "1298.0319504"
    }
  ],
  "BERRYUSD": [
    {
      "timestamp": "2021-02-13T04:00:00.000Z",
      "open": "0.00061800",
      "close": "0.00061780",
      "min": "0.00061000",
      "max": "0.00071783",
      "volume": "10460",
      "volumeQuote": "6.89477840"
    },
    {
      "timestamp": "2021-02-12T20:00:00.000Z",
      "open": "0.00060489",
      "close": "0.00061800",
      "min": "0.00048829",
      "max": "0.00061800",
      "volume": "466690",
      "volumeQuote": "228.12405820"
    }
  ]
}
</code>

It looks very hard to get the value of "min" from this JSON. So using the tool <a href="https://www.dripcoding.com/json-to-dart/">JSON to Dart</a> I got the Dart file on button click. It save my all most 40 Minutes ...
Here is Generated Dart File 
<code>
class Model_Candle {
  List<RIFUSD> rIFUSD;
  List<BERRYUSD> bERRYUSD;

  Model_Candle({this.rIFUSD, this.bERRYUSD});

  Model_Candle.fromJson(Map<String, dynamic> json) {
    if (json['RIFUSD'] != null) {
      rIFUSD = new List<RIFUSD>();
      json['RIFUSD'].forEach((v) {
        rIFUSD.add(new RIFUSD.fromJson(v));
      });
    }
    if (json['BERRYUSD'] != null) {
      bERRYUSD = new List<BERRYUSD>();
      json['BERRYUSD'].forEach((v) {
        bERRYUSD.add(new BERRYUSD.fromJson(v));
      });
    }
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    if (this.rIFUSD != null) {
      data['RIFUSD'] = this.rIFUSD.map((v) => v.toJson()).toList();
    }
    if (this.bERRYUSD != null) {
      data['BERRYUSD'] = this.bERRYUSD.map((v) => v.toJson()).toList();
    }
    return data;
  }
}

class RIFUSD {
  String timestamp;
  String open;
  String close;
  String min;
  String max;
  String volume;
  String volumeQuote;

  RIFUSD(
      {this.timestamp,
      this.open,
      this.close,
      this.min,
      this.max,
      this.volume,
      this.volumeQuote});

  RIFUSD.fromJson(Map<String, dynamic> json) {
    timestamp = json['timestamp'];
    open = json['open'];
    close = json['close'];
    min = json['min'];
    max = json['max'];
    volume = json['volume'];
    volumeQuote = json['volumeQuote'];
  }

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['timestamp'] = this.timestamp;
    data['open'] = this.open;
    data['close'] = this.close;
    data['min'] = this.min;
    data['max'] = this.max;
    data['volume'] = this.volume;
    data['volumeQuote'] = this.volumeQuote;
    return data;
  }
}
</code>

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