encodeTransactionEnvelope

Encodes a complete transaction envelope including payload and signatures.

This function encodes the full transaction including both the payload and all signatures. This is the final step before submitting a transaction to the Flow network.

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.encodeTransactionEnvelope(tx)

Or import directly the specific function:

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import { encodeTransactionEnvelope } from "@onflow/sdk"

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encodeTransactionEnvelope(tx)

Usage

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

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import { encodeTransactionEnvelope } from "@onflow/sdk"

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// Assuming you have a fully built and signed transaction

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const signedTransaction = 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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fcl.limit(100)

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]);

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// Add signatures to the transaction (this is usually done automatically)

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// signedTransaction.payloadSigs = [...];

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// signedTransaction.envelopeSigs = [...];

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// Encode the complete transaction envelope

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const encodedEnvelope = encodeTransactionEnvelope(signedTransaction);

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console.log("Encoded envelope:", encodedEnvelope);

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// Returns a hex string ready for network submission

Parameters

tx

• Type: Transaction
• Description: The transaction object to encode

Returns

string

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