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@diefferson
Last active April 12, 2023 23:34
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Json utils
import 'package:base/base.dart';
class Client {
String name;
String socialName;
String email;
TaxIdentifier taxIdentifier;
Phone mobilePhone;
Address? mailAddress;
Client({
String? name,
String? socialName,
String? email,
TaxIdentifier? taxIdentifier,
Phone? mobilePhone,
this.mailAddress,
}) : name = name ?? '',
socialName = socialName ?? '',
email = email ?? '',
taxIdentifier = taxIdentifier ?? TaxIdentifier(),
mobilePhone = mobilePhone ?? Phone();
Client.fromJson(Map<String, dynamic> json)
: name = json.getString('name'),
socialName = json.getString('socialName'),
email = json.getString('email'),
taxIdentifier = json.getObject('taxIdentifier', TaxIdentifier.mapper) ??
TaxIdentifier(),
mobilePhone = json.getObject('mobilePhone', Phone.mapper) ?? Phone(),
mailAddress = json.getObject('mailAddress', Address.mapper);
Map<String, dynamic> toJson() => {
"name": name,
"socialName": socialName,
"email": email,
"taxIdentifier": taxIdentifier.toJson(),
"mobilePhone": mobilePhone.toJson(),
"mailAddress": mailAddress?.toJson(),
}..removeWhere((e, dynamic v) => v == null);
/// Util method to clone classes
Client.clone(Client obj) : this.fromJson(obj.toJson());
/// Util method pass fromJson mapper as a parameter
static Client mapper(Map<String, dynamic> map) => Client.fromJson(map);
}
import 'dart:io';
import 'package:base/base.dart';
extension JsonUtils on Map<String, dynamic> {
T getSafeItem<T>(String key, {required T defaultValue}) {
if (containsKey(key)) {
return this[key];
}
return defaultValue;
}
T getValue<T>(String key, T defaultValue) {
return jsonSafeValue(this, key, defaultValue);
}
T? getNestedValue<T>(List<String> keys) {
return jsonNestedValue(this, keys);
}
String getString(String key) {
return jsonSafeValue(this, key, '');
}
String? getStringNull(String key) {
return jsonSafeValue<String?>(this, key, null);
}
String getStringFromKeys(List<String> keys) {
String? value;
for (final key in keys) {
if (containsKey(key)) {
value = getString(key);
break;
}
}
if (value != null) {
return value;
}
return getString(keys[0]);
}
File? getFile(String key) {
try {
return File(getString(key));
} catch (_) {
return null;
}
}
File? getFileFromKeys(List<String> keys) {
File? value;
for (var element in keys) {
if (containsKey(element)) {
value = getFile(element);
continue;
}
}
return value!;
}
int getInt(String key) {
return jsonSafeValue(this, key, 0);
}
int? getIntNull(String key) {
return jsonSafeValue<int?>(this, key, null);
}
int getIntFromKeys(List<String> keys) {
int? value;
for (var element in keys) {
if (containsKey(element)) {
value = getInt(element);
continue;
}
}
if (value != null) {
return value;
}
return getInt(keys[0]);
}
double getDouble(String key) {
try {
return double.parse(this[key].toString());
} catch (_) {
return 0.0;
}
}
double? getDoubleNull(String key) {
return jsonSafeValue<double?>(this, key, null);
}
double getDoubleFromKeys(List<String> keys) {
double? value;
for (var element in keys) {
if (containsKey(element)) {
value = getDouble(element);
continue;
}
}
if (value != null) {
return value;
}
return getDouble(keys[0]);
}
bool getBool(String key) {
return jsonSafeValue(this, key, false);
}
bool? getBoolNull(String key) {
return jsonSafeValue<bool?>(this, key, null);
}
bool getBoolFromKeys(List<String> keys) {
bool? value;
for (var element in keys) {
if (containsKey(element)) {
value = getBool(element);
continue;
}
}
if (value != null) {
return value;
}
return getBool(keys[0]);
}
T? getObject<T>(String key, T Function(Map<String, dynamic>) itemMap) {
return jsonSafeMap(this, key, itemMap);
}
T getEnum<T>(String key, T Function(String?) enumMap) {
return jsonSafeEnum(this, key, enumMap);
}
T getEnumFromKeys<T>(List<String> keys, T Function(String?) enumMap) {
T? value;
for (var element in keys) {
if (containsKey(element)) {
value = jsonSafeEnum(this, element, enumMap);
continue;
}
}
if (value != null) {
return value;
}
return jsonSafeEnum(this, keys[0], enumMap);
}
List<T> getList<T>(String key, [T Function(Map<String, dynamic>)? itemMap]) {
return jsonListValue(this, key, itemMap);
}
DateTime? getDate(String key) {
return jsonDateValue(this, key);
}
DateTime? getDateFromKeys(List<String> keys) {
DateTime? value;
for (var element in keys) {
if (containsKey(element)) {
value = getDate(element);
continue;
}
}
return value;
}
Map<String, dynamic> removeNulls() {
removeWhere((key, value) => value == null);
return this;
}
}
extension JsonListUtils on List<dynamic> {
List<T> asList<T>(T Function(Map<String, dynamic>) itemMap) {
return jsonAsList(this, itemMap);
}
}
DateTime? jsonDateValue(Map<String, dynamic> json, String key) {
if (json[key] is int) {
return DateTime.fromMillisecondsSinceEpoch(json[key], isUtc: true);
}
return (json[key] as String?)?.toDate();
}
T jsonSafeValue<T>(Map<String, dynamic> json, String key, T defaultValue) {
try {
final value = json[key];
if (value != null) {
return value;
} else {
return defaultValue;
}
} catch (e) {
return defaultValue;
}
}
T? jsonSafeMap<T>(Map<String, dynamic> json, String key,
T Function(Map<String, dynamic>) itemMap) {
if (json.containsKey(key)) {
try {
return itemMap(json[key]);
} catch (e) {
return null;
}
}
return null;
}
T jsonSafeEnum<T>(
Map<String, dynamic> json, String key, T Function(String?) enumMap) {
try {
return enumMap(json[key]);
} catch (e) {
return enumMap(null);
}
}
List<T> jsonListValue<T>(Map<String, dynamic> json, String key,
[T Function(Map<String, dynamic>)? itemMap]) {
try {
final list = (json[key] as List<dynamic>)
..removeWhere((element) => element == null);
if (itemMap != null) {
return list.map((dynamic e) => itemMap(e)).toList();
}
return list.map((e) => e as T).toList();
} catch (e) {
return [];
}
}
List<T> jsonAsList<T>(
List<dynamic> json, T Function(Map<String, dynamic>) itemMap) {
try {
return json.map((dynamic e) => itemMap(e)).toList();
} catch (e) {
return [];
}
}
T? jsonNestedValue<T>(Map<String, dynamic> json, List<String> nestedKeys) {
try {
if (nestedKeys.length == 1) {
return json[nestedKeys[0]];
} else if (nestedKeys.length == 2) {
return json[nestedKeys[0]][nestedKeys[1]];
} else if (nestedKeys.length == 3) {
return json[nestedKeys[0]][nestedKeys[1]][nestedKeys[2]];
} else if (nestedKeys.length == 4) {
return json[nestedKeys[0]][nestedKeys[1]][nestedKeys[2]][nestedKeys[3]];
} else if (nestedKeys.length == 5) {
return json[nestedKeys[0]][nestedKeys[1]][nestedKeys[2]][nestedKeys[3]]
[nestedKeys[4]];
} else {
safeLog('implements json getJsonValue from ${nestedKeys.length}');
return null;
}
} catch (e) {
return null;
}
}
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