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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| import { Dispatch, SetStateAction } from 'react' | ||
| import { PRIORITY_FEE_KEY } from './constants' | ||
| import { DEFAULT_PRIORITY_FEE_LEVEL } from '@components/settings/RpcSettings' | ||
| import { LAMPORTS_PER_SOL } from '@solana/web3.js' | ||
| import { LITE_RPC_URL } from '@store/mangoStore' | ||
|
|
||
| export const handleEstimateFeeWithWs = ( | ||
| setWs: Dispatch<SetStateAction<WebSocket | null>>, | ||
| updateFee: (fee: number) => void, | ||
| ) => { | ||
| try { | ||
| let ws: null | WebSocket = null | ||
| let lastProcessedTime: null | number = null | ||
| let lastFee: null | number = null | ||
| let reportedUndefinedFeeCount = 0 | ||
|
|
||
| const wsUrl = new URL(LITE_RPC_URL.replace('https', 'wss')) | ||
| ws = new WebSocket(wsUrl) | ||
|
|
||
| ws.addEventListener('open', () => { | ||
| try { | ||
| console.log('Fee WebSocket opened') | ||
| const message = JSON.stringify({ | ||
| jsonrpc: '2.0', | ||
| id: 1, | ||
| method: 'blockPrioritizationFeesSubscribe', | ||
| interval: 30, | ||
| }) | ||
| ws?.send(message) | ||
|
|
||
| setWs(ws) | ||
| } catch (e) { | ||
| ws?.close(1000) | ||
| throw e | ||
| } | ||
| }) | ||
| ws.addEventListener('close', () => { | ||
| console.log('Fee WebSocket closed') | ||
| setWs(null) | ||
| }) | ||
| ws.addEventListener('error', () => { | ||
| try { | ||
| console.log('Fee WebSocket error') | ||
| setWs(null) | ||
| } catch (e) { | ||
| console.log(e) | ||
| throw e | ||
| } | ||
| }) | ||
| ws.addEventListener('message', function incoming(data: { data: string }) { | ||
| try { | ||
| const currentTime = Date.now() | ||
| const priorityFeeMultiplier = Number( | ||
| localStorage.getItem(PRIORITY_FEE_KEY) ?? | ||
| DEFAULT_PRIORITY_FEE_LEVEL.value, | ||
| ) | ||
|
|
||
| if (reportedUndefinedFeeCount >= 5) { | ||
| ws?.close(1000) | ||
| } | ||
| if ( | ||
| !lastFee || | ||
| !lastProcessedTime || | ||
| currentTime - lastProcessedTime >= 30000 | ||
| ) { | ||
| const seventyFivePerc = JSON.parse(data.data)?.params?.result?.value | ||
| ?.by_tx[18] | ||
|
|
||
| if (seventyFivePerc === undefined) { | ||
| reportedUndefinedFeeCount += 1 | ||
| } else { | ||
| const feeEstimate = Math.max( | ||
| Math.min( | ||
| Math.ceil(seventyFivePerc * priorityFeeMultiplier), | ||
| LAMPORTS_PER_SOL * 0.005, | ||
| ), | ||
| 100000, | ||
| ) | ||
| console.log(feeEstimate) | ||
| updateFee(feeEstimate) | ||
| lastFee = feeEstimate | ||
| lastProcessedTime = currentTime | ||
| } | ||
| } | ||
| } catch (e) { | ||
| console.log(e) | ||
| throw e | ||
| } | ||
| }) | ||
| return ws | ||
| } catch (e) { | ||
| console.log(e) | ||
| setWs(null) | ||
| throw e | ||
| } | ||
| } |