setTransactionMessagePriorityFeeLamports

function setTransactionMessagePriorityFeeLamports<TTransactionMessage>(
    priorityFeeLamports,
    transactionMessage,
): TTransactionMessage;

Sets the total priority fee for a v1 transaction message.

In v1 transactions, the priority fee is expressed as a total amount in lamports — what you set is what you pay, regardless of the compute unit limit.

Type Parameters

Type Parameter	Description
`TTransactionMessage` extends `TransactionMessage` & `object`	The transaction message type.

Parameter	Type	Description
`priorityFeeLamports`	`bigint` \| `undefined`	The priority fee amount in lamports, or `undefined` to remove the fee.
`transactionMessage`	`TTransactionMessage`	The v1 transaction message to configure.

TTransactionMessage

A new transaction message with the priority fee set.

const txMessage = setTransactionMessagePriorityFeeLamports(
    10_000n,
    transactionMessage,
);