SigningCallback typedef

SigningCallback = Uint8List Function(Uint8List payload)

Callback function type for signing transaction payloads.

This function receives the payload to be signed and must return the signature.

Parameters:

• payload: The SCALE-encoded signing payload (typically 32 bytes after hashing)

Returns: A Uint8List containing the signature (typically 64 bytes for Sr25519/Ed25519)

Implementation

typedef SigningCallback = Uint8List Function(Uint8List payload);