fromJson static method
Error?
fromJson(
- dynamic value
)
Returns a new Error instance and imports its values from
value
if it's a Map, null otherwise.
Implementation
// ignore: prefer_constructors_over_static_methods
static Error? fromJson(dynamic value) {
if (value is Map) {
final json = value.cast<String, dynamic>();
// Ensure that the map contains the required keys.
// Note 1: the values aren't checked for validity beyond being non-null.
// Note 2: this code is stripped in release mode!
assert(() {
requiredKeys.forEach((key) {
assert(json.containsKey(key), 'Required key "Error[$key]" is missing from JSON.');
assert(json[key] != null, 'Required key "Error[$key]" has a null value in JSON.');
});
return true;
}());
return Error(
title: mapValueOfType<String>(json, r'title')!,
detail: mapValueOfType<String>(json, r'detail')!,
code: mapValueOfType<String>(json, r'code'),
source_: ErrorSource.fromJson(json[r'source']),
);
}
return null;
}