machankura/mempool
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Updates for general transaction and block fetching.

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This commit is contained in:
softsimon
2020-12-28 20:17:32 +07:00
parent bb28a56622
commit 3c0fa71a10
6 changed files with 77 additions and 56 deletions
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37
backend/src/api/blocks.ts
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@@ -64,19 +64,28 @@ class Blocks {
const txIds: string[] = await bitcoinApi.$getTxIdsForBlock(blockHash);
const mempool = memPool.getMempool();
let found = 0;
let transactionsFound = 0;
for (let i = 0; i < txIds.length; i++) {
// When using bitcoind, just fetch the coinbase tx for now
if (config.MEMPOOL.BACKEND !== 'none' && i === 0) {
const tx = await transactionUtils.$getTransactionExtended(txIds[i]);
if (tx) {
transactions.push(tx);
let txFound = false;
let findCoinbaseTxTries = 0;
// It takes Electrum Server a few seconds to index the transaction after a block is found
while (findCoinbaseTxTries < 5 && !txFound) {
const tx = await transactionUtils.$getTransactionExtended(txIds[i]);
if (tx) {
txFound = true;
transactions.push(tx);
} else {
await Common.sleep(1000);
findCoinbaseTxTries++;
}
}
}
if (mempool[txIds[i]]) {
transactions.push(mempool[txIds[i]]);
found++;
transactionsFound++;
} else if (config.MEMPOOL.BACKEND === 'esplora') {
logger.debug(`Fetching block tx ${i} of ${txIds.length}`);
const tx = await transactionUtils.$getTransactionExtended(txIds[i]);
@@ -86,11 +95,11 @@ class Blocks {
}
}
logger.debug(`${found} of ${txIds.length} found in mempool. ${txIds.length - found} not found.`);
logger.debug(`${transactionsFound} of ${txIds.length} found in mempool. ${txIds.length - transactionsFound} not found.`);
const blockExtended: BlockExtended = Object.assign({}, block);
blockExtended.reward = transactions[0].vout.reduce((acc, curr) => acc + curr.value, 0);
blockExtended.coinbaseTx = this.stripCoinbaseTransaction(transactions[0]);
blockExtended.coinbaseTx = transactionUtils.stripCoinbaseTransaction(transactions[0]);
transactions.sort((a, b) => b.feePerVsize - a.feePerVsize);
blockExtended.medianFee = transactions.length > 1 ? Common.median(transactions.map((tx) => tx.feePerVsize)) : 0;
blockExtended.feeRange = transactions.length > 1 ? Common.getFeesInRange(transactions.slice(0, transactions.length - 1), 8) : [0, 0];
@@ -118,20 +127,6 @@ class Blocks {
public getCurrentBlockHeight(): number {
return this.currentBlockHeight;
}
private stripCoinbaseTransaction(tx: TransactionExtended): TransactionMinerInfo {
return {
vin: [{
scriptsig: tx.vin[0].scriptsig || tx.vin[0]['coinbase']
}],
vout: tx.vout
.map((vout) => ({
scriptpubkey_address: vout.scriptpubkey_address,
value: vout.value
}))
.filter((vout) => vout.value)
};
}
}
export default new Blocks();