fromJsonString static method
Acts like a constructor, returns a Resource, accepts a String as an argument, mostly because I got tired of typing it out
Implementation
static Resource fromJsonString(String source) {
final json = jsonDecode(source);
if (json is Map<String, dynamic>) {
return _resourceFromJson(json);
} else {
throw FormatException('FormatException:\nYou passed $json\n'
'This does not properly decode to a Map<String,dynamic>.');
}
}