voucherToTxId

Converts a voucher object to a transaction ID.

This function computes the transaction ID by encoding and hashing the voucher. The transaction ID can be used to track the transaction status on the Flow network.

Import

You can import the entire package and access the function:

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import * as fcl from "@onflow/fcl"

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fcl.voucherToTxId(voucher)

Or import directly the specific function:

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import { voucherToTxId } from "@onflow/fcl"

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voucherToTxId(voucher)

Usage

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import { voucherToTxId, createSignableVoucher } from "@onflow/sdk"

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import * as fcl from "@onflow/fcl";

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// Create a voucher from an interaction

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const interaction = await fcl.build([

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fcl.transaction`

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transaction {

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prepare(account: AuthAccount) {

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log("Hello, Flow!")

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}

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}

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`,

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fcl.proposer(authz),

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fcl.payer(authz),

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fcl.authorizations([authz])

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]);

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const voucher = createSignableVoucher(interaction);

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// Calculate the transaction ID

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const txId = voucherToTxId(voucher);

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console.log("Transaction ID:", txId);

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// Returns something like: "a1b2c3d4e5f6789..."

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// You can use this ID to track the transaction

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const txStatus = await fcl.tx(txId).onceSealed();

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console.log("Transaction status:", txStatus);

Parameters

voucher

• Type:

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export interface Voucher {

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cadence: string

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refBlock: string

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computeLimit: number

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arguments: VoucherArgument[]

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proposalKey: VoucherProposalKey

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payer: string

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authorizers: string[]

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payloadSigs: Sig[]

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envelopeSigs: Sig[]

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}

• Description: The voucher object to convert

Returns

string

A transaction ID string

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