toJson method
Example: Extended class of PaymayaBillingAddress.
final shippingAddress = PaymayaShippingAddress(
phone:'09123456789',
email:'paymaya@flutter.com',
shippingType: Shippingtype.st, // Standard
firstName: 'John'
middleName: 'Birb',
lastName: 'Doe',
line1: '123-4567',
line2: '456-789',
city: 'Davao City',
state: 'Davao del Sur',
zipCode: 8000,
countryCode: 'PH', /// Default value is set to 'PH'
);
Implementation
String toJson() => json.encode(toMap());