Pyth is building a way to deliver a decentralized, cross-chain market of verifiable data from high-quality nodes to any smart contract, anywhere.
This library consumes on-chain Pyth accountInfo.data from @solana/web3.js and returns JavaScript-friendly objects.
See our examples repo for real-world usage examples.
import { Connection, PublicKey } from '@solana/web3.js'
import { parseMappingData, parsePriceData, parseProductData } from '@pythnetwork/pyth-client'
const connection = new Connection(SOLANA_CLUSTER_URL)
const publicKey = new PublicKey(ORACLE_MAPPING_PUBLIC_KEY)
connection.getAccountInfo(publicKey).then((accountInfo) => {
const { productAccountKeys } = parseMappingData(accountInfo.data)
connection.getAccountInfo(productAccountKeys[productAccountKeys.length - 1]).then((accountInfo) => {
const { product, priceAccountKey } = parseProductData(accountInfo.data)
connection.getAccountInfo(priceAccountKey).then((accountInfo) => {
const { price, confidence } = parsePriceData(accountInfo.data)
console.log(`${product.symbol}: $${price} \xB1$${confidence}`)
// SRM/USD: $8.68725 ±$0.0131
})
})
})
To get streaming price updates, you may want to use connection.onAccountChange