PendingTransaction
type PendingTransaction: Pick<TransactionCommon, "transaction" | "toJSON" | "toPretty"> & {
"data": SendZkAppResponse;
"errors": string[];
"hash": string;
"status": PendingTransactionStatus;
"safeWait": Promise<RejectedTransaction | IncludedTransaction>;
"wait": Promise<IncludedTransaction>;
};
Represents a transaction that has been submitted to the blockchain but has not yet reached a final state. The PendingTransaction type extends certain functionalities from the base Transaction type, adding methods to monitor the transaction's progress towards being finalized (either included in a block or rejected).
Type declaration
data?
optional data: SendZkAppResponse;
Optional. Contains response data from a ZkApp transaction submission.
errors
errors: string[];
An array of error messages related to the transaction processing.
Example
if (!pendingTransaction.status === 'rejected') {
console.error(`Transaction errors: ${pendingTransaction.errors.join(', ')}`);
}
hash
hash: string;
Returns the transaction hash as a string identifier.
Example
const txHash = pendingTransaction.hash;
console.log(`Transaction hash: ${txHash}`);
status
status: PendingTransactionStatus;
Example
if (pendingTransaction.status === 'pending') {
console.log('Transaction accepted for processing by the Mina daemon.');
try {
await pendingTransaction.wait();
console.log('Transaction successfully included in a block.');
} catch (error) {
console.error('Transaction was rejected or failed to be included in a block:', error);
}
} else {
console.error('Transaction was not accepted for processing by the Mina daemon.');
}
safeWait()
Waits for the transaction to be included in a block. This method polls the Mina daemon to check the transaction's status
Parameters
• options?
Configuration options for polling behavior.
• options.interval?: number
The time interval, in milliseconds, between each polling attempt.
• options.maxAttempts?: number
The maximum number of polling attempts.
Returns
Promise\<RejectedTransaction | IncludedTransaction>
A promise that resolves to the transaction's final state.
Example
const transaction = await pendingTransaction.wait({ maxAttempts: 5, interval: 1000 });
console.log(transaction.status); // 'included' or 'rejected'
wait()
Waits for the transaction to be included in a block. This method polls the Mina daemon to check the transaction's status, and throws an error if the transaction is rejected.
Parameters
• options?
Configuration options for polling behavior.
• options.interval?: number
The interval, in milliseconds, between status checks.
• options.maxAttempts?: number
The maximum number of attempts to check the transaction status.
Returns
Promise\<IncludedTransaction>
A promise that resolves to the transaction's final state or throws an error.
Throws
If the transaction is rejected or fails to finalize within the given attempts.
Example
try {
const transaction = await pendingTransaction.wait({ maxAttempts: 10, interval: 2000 });
console.log('Transaction included in a block.');
} catch (error) {
console.error('Transaction rejected or failed to finalize:', error);
}