hkqr_fps
Encode structural FPS information to a QR code string or Decode a QR code String to structural FPS information based on the specification.
Getting Started
Encode
final qrString = HKQrInfo(
isDynamic: true,
fpsProxy: FpsProxy(FpsType.fpsId, '123456'),
amount: '0.01',
).encode();
Decode
final hkqrInfo = HKQrInfo.decode('000201010211...');
Decode tips
- Fail-fast: Decode will fail when first error was found.
- Warnings: Decode may success with some warnings, i.e. some unrecognized field found during decode.
- Mandatory: Mandatory fields must present even if not used in FPS.
- Optional: Optional fields must have valid format and length if present.
example
There are 3 use cases in example
- Fill form of FPS information, encode it to a QR code string, and use qr_flutter to generate a QR image;
- Decode a QR code string to FPS information;
- Use qr_code_scanner to scan a QR image and decode scan result to FPS information.