src/util/send-and-confirm-raw-transaction.js
// @flow
import {Connection} from '../connection';
import type {Commitment} from '../connection';
import {sleep} from './sleep';
import type {TransactionSignature} from '../transaction';
import {DEFAULT_TICKS_PER_SLOT, NUM_TICKS_PER_SECOND} from '../timing';
/**
* Sign, send and confirm a raw transaction
*/
export async function sendAndConfirmRawTransaction(
connection: Connection,
rawTransaction: Buffer,
commitment: ?Commitment,
): Promise<TransactionSignature> {
const start = Date.now();
const statusCommitment = commitment || connection.commitment || 'max';
let signature = await connection.sendRawTransaction(rawTransaction);
// Wait up to a couple slots for a confirmation
let status = null;
let statusRetries = 6;
for (;;) {
status = (await connection.getSignatureStatus(signature)).value;
if (status) {
if (statusCommitment === 'max' && status.confirmations === null) {
break;
} else if (statusCommitment === 'recent') {
break;
}
}
// Sleep for approximately half a slot
await sleep((500 * DEFAULT_TICKS_PER_SLOT) / NUM_TICKS_PER_SECOND);
if (--statusRetries <= 0) {
const duration = (Date.now() - start) / 1000;
throw new Error(
`Raw Transaction '${signature}' was not confirmed in ${duration.toFixed(
2,
)} seconds (${JSON.stringify(status)})`,
);
}
}
if (status && !status.err) {
return signature;
}
throw new Error(
`Raw transaction ${signature} failed (${JSON.stringify(status)})`,
);
}