Generator

The Transaction Generator simplifies the transaction creation process by:

• Dynamically calculating transaction mass.
• Accounting for custom transaction Fee Rates.
• Automatically creating daisy-chained (batch/sweep) transactions if your UTXO set exceeds the maximum mass allowed in a single transaction.
• Calculating the correct transaction change output.

The Transaction Generator functions as an iterator, producing a PendingTransaction object that can be submitted to the Kaspa network. A PendingTransaction wraps a regular Transaction and provides additional metadata, such as:

• A list of UTXO entries (required for transaction signing).
• A reference to the originating UtxoContext (useful for distinguishing regular outbound transactions from inter-account transfers).

Upon completion, the Generator::summary() function can be used to generate a GeneratorSummary object. This summary provides cumulative information about the transaction generation process, including the total transaction mass, which can be useful for calculating transaction fees.

References

WASM SDK

• Generator class.
• Example of use.

Rust SDK

• Generator struct.
• Example of use in the Wallet API.