encodeTxIdFromVoucher

Encodes a transaction ID from a voucher by computing its hash.

A voucher is an intermediary object that contains transaction details before final encoding. This function computes the transaction ID that would result from submitting the transaction.

Import

You can import the entire package and access the function:

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import * as sdk from "@onflow/sdk"

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sdk.encodeTxIdFromVoucher(voucher)

Or import directly the specific function:

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import { encodeTxIdFromVoucher } from "@onflow/sdk"

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encodeTxIdFromVoucher(voucher)

Usage

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

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import { encodeTxIdFromVoucher } from "@onflow/sdk"

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// Create a voucher (usually done internally by FCL)

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const voucher = {

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cadence: `

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transaction {

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prepare(account: AuthAccount) {

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log("Hello")

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}

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}

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`,

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arguments: [],

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refBlock: "abc123...",

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computeLimit: 100,

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proposalKey: {

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address: "0x123456789abcdef0",

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keyId: 0,

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sequenceNum: 42

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},

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payer: "0x123456789abcdef0",

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authorizers: ["0x123456789abcdef0"],

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payloadSigs: [],

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envelopeSigs: []

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};

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// Calculate the transaction ID

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const txId = encodeTxIdFromVoucher(voucher);

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

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// Returns a transaction ID that can be used to track the transaction

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 containing transaction details

Returns

string

A hex-encoded string representing the transaction ID

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