DART class
Dart is a programming language designed for client development, such as for the web and mobile apps. Dart is used to build server and desktop applications. Dart is an object-oriented, class-based, garbage-collected language with C-style syntax.
JSON object
JSON is an open standard file format and data interchange format that uses human-readable text to store and transmit data objects consisting of attribute–value pairs and arrays.
How to Convert JSON into Dart Class null safety?
It is very difficult to writing dart code manually. So we build a tool JSON to dart converter which convert JSON into dart class with null safety feature. JSON to Dart null safety tool convert json to dart in single button click.
Dart null safety will indicate that a variable may have the value null.
Sample JSON Object
{
"RIFUSDS": [
{
"timestamp": "2021-08-13T16:00:00.000Z",
"open": "0.2257370",
"close": "0.2257370",
"min": "0.2257370",
"max": "0.2257370",
"volume": "59",
"volumeQuote": "25.9611130"
},
{
"timestamp": "2021-02-13T12:00:00.000Z",
"open": "0.3015120",
"close": "0.3216128",
"min": "0.3015120",
"max": "0.3216768",
"volume": "4079",
"volumeQuote": "1298.0319504"
}
],
"BERRYUSDS": [
{
"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"
}
]
}
Generated Dart File
class AutoGenerate {
AutoGenerate({
required this.RIFUSDS,
required this.BERRYUSDS,
});
late final List<RIFUSDS> RIFUSDS;
late final List<BERRYUSDS> BERRYUSDS;
AutoGenerate.fromJson(Map<String, dynamic> json){
RIFUSDS = List.from(json['RIFUSDS']).map((e)=>RIFUSDS.fromJson(e)).toList();
BERRYUSDS = List.from(json['BERRYUSDS']).map((e)=>BERRYUSDS.fromJson(e)).toList();
}
Map<String, dynamic> toJson() {
final _data = <String, dynamic>{};
_data['RIFUSDS'] = RIFUSDS.map((e)=>e.toJson()).toList();
_data['BERRYUSDS'] = BERRYUSDS.map((e)=>e.toJson()).toList();
return _data;
}
}
class RIFUSDS {
RIFUSDS({
required this.timestamp,
required this.open,
required this.close,
required this.min,
required this.max,
required this.volume,
required this.volumeQuote,
});
late final String timestamp;
late final String open;
late final String close;
late final String min;
late final String max;
late final String volume;
late final String volumeQuote;
RIFUSDS.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 _data = <String, dynamic>{};
_data['timestamp'] = timestamp;
_data['open'] = open;
_data['close'] = close;
_data['min'] = min;
_data['max'] = max;
_data['volume'] = volume;
_data['volumeQuote'] = volumeQuote;
return _data;
}
}
class BERRYUSDS {
BERRYUSDS({
required this.timestamp,
required this.open,
required this.close,
required this.min,
required this.max,
required this.volume,
required this.volumeQuote,
});
late final String timestamp;
late final String open;
late final String close;
late final String min;
late final String max;
late final String volume;
late final String volumeQuote;
BERRYUSDS.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 _data = <String, dynamic>{};
_data['timestamp'] = timestamp;
_data['open'] = open;
_data['close'] = close;
_data['min'] = min;
_data['max'] = max;
_data['volume'] = volume;
_data['volumeQuote'] = volumeQuote;
return _data;
}
}
`
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