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Merge pull request #2960 from mempool/mononaut/fix-mempool-gradients

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Fix mempool block gradients
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softsimon 2023-01-24 00:28:55 +04:00 committed by GitHub
commit 78e4788ab3
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1 changed files with 12 additions and 3 deletions
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15
backend/src/api/common.ts
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@ -35,16 +35,25 @@ export class Common {
} }
static getFeesInRange(transactions: TransactionExtended[], rangeLength: number) { static getFeesInRange(transactions: TransactionExtended[], rangeLength: number) {
const arr = [transactions[transactions.length - 1].effectiveFeePerVsize]; const filtered: TransactionExtended[] = [];
let lastValidRate = Infinity;
// filter out anomalous fee rates to ensure monotonic range
for (const tx of transactions) {
if (tx.effectiveFeePerVsize <= lastValidRate) {
filtered.push(tx);
lastValidRate = tx.effectiveFeePerVsize;
}
}
const arr = [filtered[filtered.length - 1].effectiveFeePerVsize];
const chunk = 1 / (rangeLength - 1); const chunk = 1 / (rangeLength - 1);
let itemsToAdd = rangeLength - 2; let itemsToAdd = rangeLength - 2;
while (itemsToAdd > 0) { while (itemsToAdd > 0) {
arr.push(transactions[Math.floor(transactions.length * chunk * itemsToAdd)].effectiveFeePerVsize); arr.push(filtered[Math.floor(filtered.length * chunk * itemsToAdd)].effectiveFeePerVsize);
itemsToAdd--; itemsToAdd--;
} }
arr.push(transactions[0].effectiveFeePerVsize); arr.push(filtered[0].effectiveFeePerVsize);
return arr; return arr;
} }