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pyth-crosschain
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Backend: WIP Wormhole Engine.

This commit is contained in:
Hernán Di Pietro 2021-11-12 16:34:25 -03:00
parent 115ca04af2
commit c24827252b
2 changed files with 58 additions and 57 deletions
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3
backend/engine/WormholeEngine.ts
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@ -16,6 +16,7 @@ import { IPublisher, PublishInfo } from '../publisher/IPublisher'
import { PriceTicker } from '../common/priceTicker' import { PriceTicker } from '../common/priceTicker'
import { StatusCode } from '../common/statusCodes' import { StatusCode } from '../common/statusCodes'
import { sleep } from '../common/sleep' import { sleep } from '../common/sleep'
import { WormholePythPriceFetcher } from 'backend/fetcher/WormholePythPriceFetcher'
const algosdk = require('algosdk') const algosdk = require('algosdk')
const charm = require('charm')() const charm = require('charm')()
@ -63,7 +64,7 @@ export class WormholeClientEngine implements IEngine {
this.settings.algo.port this.settings.algo.port
) )
const fetcher = new PythPriceFetcher(this.settings.params.symbol, const fetcher = new WormholePythPriceFetcher(this.settings.params.symbol,
new StrategyLastPrice(this.settings.params.bufferSize), this.settings.pyth?.solanaClusterName!) new StrategyLastPrice(this.settings.params.bufferSize), this.settings.pyth?.solanaClusterName!)
await fetcher.start() await fetcher.start()

112
backend/fetcher/WormholePythPriceFetcher.ts
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@ -1,66 +1,66 @@
// /** /**
// * Pricecaster Service. * Pricecaster Service.
// * *
// * Fetcher backend component. * Fetcher backend component.
// * *
// * (c) 2021 Randlabs, Inc. * (c) 2021 Randlabs, Inc.
// */ */
// import { IPriceFetcher } from './IPriceFetcher' import { IPriceFetcher } from './IPriceFetcher'
// import { IStrategy } from '../strategy/strategy' import { IStrategy } from '../strategy/strategy'
// import { getPythProgramKeyForCluster, PriceData, Product, PythConnection } from '@pythnetwork/client' import { getPythProgramKeyForCluster, PriceData, Product, PythConnection } from '@pythnetwork/client'
// import { Cluster, clusterApiUrl, Connection } from '@solana/web3.js' import { Cluster, clusterApiUrl, Connection } from '@solana/web3.js'
// import { PriceTicker } from '../common/priceTicker' import { PriceTicker } from '../common/priceTicker'
// import { getEmitterAddressEth, getSignedVAA } from '@certusone/wormhole-sdk' import { getEmitterAddressEth, getSignedVAA } from '@certusone/wormhole-sdk'
// export class WormholePythPriceFetcher implements IPriceFetcher { export class WormholePythPriceFetcher implements IPriceFetcher {
// private strategy: IStrategy private strategy: IStrategy
// private symbol: string private symbol: string
// private pythConnection: PythConnection private pythConnection: PythConnection
// constructor (symbol: string, strategy: IStrategy, solanaClusterName: string) { constructor (symbol: string, strategy: IStrategy, solanaClusterName: string) {
// const SOLANA_CLUSTER_NAME: Cluster = solanaClusterName as Cluster const SOLANA_CLUSTER_NAME: Cluster = solanaClusterName as Cluster
// const connection = new Connection(clusterApiUrl(SOLANA_CLUSTER_NAME)) const connection = new Connection(clusterApiUrl(SOLANA_CLUSTER_NAME))
// const pythPublicKey = getPythProgramKeyForCluster(SOLANA_CLUSTER_NAME) const pythPublicKey = getPythProgramKeyForCluster(SOLANA_CLUSTER_NAME)
// this.pythConnection = new PythConnection(connection, pythPublicKey) this.pythConnection = new PythConnection(connection, pythPublicKey)
// this.strategy = strategy this.strategy = strategy
// this.symbol = symbol this.symbol = symbol
// } }
// async start () { async start () {
// await this.pythConnection.start() await this.pythConnection.start()
// this.pythConnection.onPriceChange((product: Product, price: PriceData) => { this.pythConnection.onPriceChange((product: Product, price: PriceData) => {
// if (product.symbol === this.symbol) { if (product.symbol === this.symbol) {
// this.onPriceChange(price) this.onPriceChange(price)
// } }
// }) })
// } }
// stop (): void { stop (): void {
// this.pythConnection.stop() this.pythConnection.stop()
// } }
// setStrategy (s: IStrategy) { setStrategy (s: IStrategy) {
// this.strategy = s this.strategy = s
// } }
// hasData (): boolean { hasData (): boolean {
// return this.strategy.bufferCount() > 0 return this.strategy.bufferCount() > 0
// } }
// queryTicker (): PriceTicker | undefined { queryTicker (): PriceTicker | undefined {
// getEmitterAddressEth() getEmitterAddressEth()
// await getSignedVAA("https://wormhole-v2-testnet-api.certus.one", ) await getSignedVAA("https://wormhole-v2-testnet-api.certus.one", )
// //return this.strategy.getPrice() //return this.strategy.getPrice()
// } }
// private onPriceChange (price: PriceData) { private onPriceChange (price: PriceData) {
// GrpcWebImpl GrpcWebImpl
// PublicRPCServiceClientImpl PublicRPCServiceClientImpl
// getSignedVAA() getSignedVAA()
// const pt: PriceTicker = new PriceTicker(price.priceComponent, const pt: PriceTicker = new PriceTicker(price.priceComponent,
// price.confidenceComponent, price.exponent, price.publishSlot) price.confidenceComponent, price.exponent, price.publishSlot)
// this.strategy.put(pt) this.strategy.put(pt)
// } }
// } }