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deploy: leporello-js/app@a6e3f1b36f

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dmitry-vsl
2025-05-30 19:59:02 +00:00
parent 1a30311de4
commit 75b1c5e942
30 changed files with 959 additions and 832 deletions
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18
docs/examples/ethers/block_by_timestamp.js
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@@ -1,21 +1,25 @@
import {ethers} from 'https://unpkg.com/ethers/dist/ethers.js'
import { ethers } from "ethers"
const URL = 'https://rpc.ankr.com/eth'
const URL = "https://eth-mainnet.public.blastapi.io"
const provider = await ethers.getDefaultProvider(URL)
const latest = await provider.getBlock('latest')
const latest = await provider.getBlock("latest")
/*
Find ethereum block by timestamp using binary search
*/
async function getBlockNumberByTimestamp(timestamp, low = 0, high = latest.number) {
if(low + 1 == high) {
async function getBlockNumberByTimestamp(
timestamp,
low = 0,
high = latest.number,
) {
if (low + 1 == high) {
return low
} else {
const mid = Math.floor((low + high) / 2)
const midBlock = await provider.getBlock(mid)
if(midBlock.timestamp > timestamp) {
if (midBlock.timestamp > timestamp) {
return getBlockNumberByTimestamp(timestamp, low, mid)
} else {
return getBlockNumberByTimestamp(timestamp, mid, high)
@@ -23,6 +27,6 @@ async function getBlockNumberByTimestamp(timestamp, low = 0, high = latest.numbe
}
}
const timestamp = new Date('2019-06-01').getTime()/1000
const timestamp = new Date("2019-06-01").getTime() / 1000
const blockNumber = await getBlockNumberByTimestamp(timestamp)
const block = await provider.getBlock(blockNumber)