# Transaction ID

# getTransactionId

  • function getTransactionId(): Checksum256

    This function returns the id of the currently executing transaction. The id of the transaction is a sha256 checksum of the transaction data.

    Throws if:

    • transaction read fails for some reason

    The function should be used inside the action method of the contract.


    import { getTransactionId } from 'proton-tsc'
    // ...
    doAction(): void {
      const txid = getTransactionId();
      /* txid is 9bf0f9c2d2acb17eb18af416fda425f69f1091ec47e96370ea77f6f7f92814bb */