24 lines
899 B
TypeScript
24 lines
899 B
TypeScript
import { getPythProgramKeyForCluster, PriceData, Product, PythConnection } from '@pythnetwork/client'
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import {Cluster, clusterApiUrl, Connection, PublicKey} from '@solana/web3.js'
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const SOLANA_CLUSTER_NAME: Cluster = 'devnet'
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const connection = new Connection(clusterApiUrl(SOLANA_CLUSTER_NAME))
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const pythPublicKey = getPythProgramKeyForCluster(SOLANA_CLUSTER_NAME)
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const algosdk = require('algosdk')
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const pythConnection = new PythConnection(connection, pythPublicKey)
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pythConnection.onPriceChange((product: Product, price: PriceData) => {
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if (product.symbol == 'BTC/USD') {
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// sample output:
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// SRM/USD: $8.68725 ±$0.0131
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// tslint:disable-next-line:no-console
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console.log(`${product.symbol}: $${price.price} \xB1$${price.confidence}`)
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}
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})
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// tslint:disable-next-line:no-console
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console.log("Reading from Pyth price feed...")
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pythConnection.start() |