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feat(price_pusher): solana price pusher (#1408)
* Checkpoint * Checkpoint * Checkpoint * Checkpoint * fix: pusher * Checkpoint * Works * fix: pass pusher program id * Add docs * 0.1.0 * Bump npm package * Go * Comment * Add customizable shard id * Allow configurable priority fees
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‎package-lock.json‎

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‎price_pusher/config.solana.testnet.sample.json‎

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{
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"endpoint": "https://api.devnet.solana.com",
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"keypair-file": "/keypair"
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}

‎price_pusher/package.json‎

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},
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"dependencies": {
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"@injectivelabs/sdk-ts": "1.10.72",
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"@pythnetwork/pyth-solana-receiver": "*",
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"@mysten/sui.js": "^0.49.1",
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"@pythnetwork/price-service-client": "*",
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"@pythnetwork/pyth-sdk-solidity": "*",

‎price_pusher/src/index.ts‎

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@@ -6,6 +6,7 @@ import evm from "./evm/command";
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import aptos from "./aptos/command";
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import sui from "./sui/command";
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import near from "./near/command";
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import solana from "./solana/command";
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yargs(hideBin(process.argv))
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.config("config")
@@ -15,4 +16,5 @@ yargs(hideBin(process.argv))
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.command(aptos)
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.command(sui)
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.command(near)
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.command(solana)
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.help().argv;

‎price_pusher/src/solana/command.ts‎

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import { Options } from "yargs";
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import * as options from "../options";
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import { readPriceConfigFile } from "../price-config";
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import { PriceServiceConnection } from "@pythnetwork/price-service-client";
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import { PythPriceListener } from "../pyth-price-listener";
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import { SolanaPriceListener, SolanaPricePusher } from "./solana";
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import { Controller } from "../controller";
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import { PythSolanaReceiver } from "@pythnetwork/pyth-solana-receiver";
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import NodeWallet from "@coral-xyz/anchor/dist/cjs/nodewallet";
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import { Keypair, Connection } from "@solana/web3.js";
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import fs from "fs";
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import { PublicKey } from "@solana/web3.js";
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export default {
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command: "solana",
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describe: "run price pusher for solana",
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builder: {
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endpoint: {
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description: "Solana RPC API endpoint",
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type: "string",
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required: true,
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} as Options,
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"keypair-file": {
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description: "Path to a keypair file",
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type: "string",
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required: true,
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} as Options,
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"shard-id": {
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description: "Shard ID",
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type: "number",
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required: true,
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} as Options,
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"compute-unit-price-micro-lamports": {
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description: "Priority fee per compute unit",
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type: "number",
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default: 50000,
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} as Options,
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...options.priceConfigFile,
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...options.priceServiceEndpoint,
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...options.pythContractAddress,
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...options.pollingFrequency,
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...options.pushingFrequency,
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},
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handler: function (argv: any) {
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const {
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endpoint,
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keypairFile,
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shardId,
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computeUnitPriceMicroLamports,
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priceConfigFile,
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priceServiceEndpoint,
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pythContractAddress,
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pushingFrequency,
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pollingFrequency,
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} = argv;
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const priceConfigs = readPriceConfigFile(priceConfigFile);
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const priceServiceConnection = new PriceServiceConnection(
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priceServiceEndpoint,
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{
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logger: {
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// Log only warnings and errors from the price service client
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info: () => undefined,
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warn: console.warn,
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error: console.error,
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debug: () => undefined,
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trace: () => undefined,
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},
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}
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);
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const priceItems = priceConfigs.map(({ id, alias }) => ({ id, alias }));
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const pythListener = new PythPriceListener(
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priceServiceConnection,
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priceItems
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);
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const wallet = new NodeWallet(
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Keypair.fromSecretKey(
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Uint8Array.from(JSON.parse(fs.readFileSync(keypairFile, "ascii")))
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)
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);
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const pythSolanaReceiver = new PythSolanaReceiver({
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connection: new Connection(endpoint),
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wallet,
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pushOracleProgramId: new PublicKey(pythContractAddress),
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});
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const solanaPricePusher = new SolanaPricePusher(
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pythSolanaReceiver,
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priceServiceConnection,
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shardId,
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computeUnitPriceMicroLamports
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);
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const solanaPriceListener = new SolanaPriceListener(
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pythSolanaReceiver,
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shardId,
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priceItems,
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{ pollingFrequency }
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);
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const controller = new Controller(
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priceConfigs,
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pythListener,
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solanaPriceListener,
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solanaPricePusher,
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{ pushingFrequency }
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);
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controller.start();
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},
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};

‎price_pusher/src/solana/solana.ts‎

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import { PythSolanaReceiver } from "@pythnetwork/pyth-solana-receiver";
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import {
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ChainPriceListener,
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IPricePusher,
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PriceInfo,
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PriceItem,
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} from "../interface";
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import { DurationInSeconds } from "../utils";
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import { PriceServiceConnection } from "@pythnetwork/price-service-client";
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export class SolanaPriceListener extends ChainPriceListener {
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constructor(
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private pythSolanaReceiver: PythSolanaReceiver,
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private shardId: number,
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priceItems: PriceItem[],
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config: {
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pollingFrequency: DurationInSeconds;
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}
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) {
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super("solana", config.pollingFrequency, priceItems);
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}
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async getOnChainPriceInfo(priceId: string): Promise<PriceInfo | undefined> {
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try {
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const priceFeedAccount =
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await this.pythSolanaReceiver.fetchPriceFeedAccount(
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this.shardId,
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Buffer.from(priceId, "hex")
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);
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console.log(
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`Polled a Solana on chain price for feed ${this.priceIdToAlias.get(
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priceId
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)} (${priceId}).`
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);
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if (priceFeedAccount) {
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return {
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conf: priceFeedAccount.priceMessage.conf.toString(),
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price: priceFeedAccount.priceMessage.price.toString(),
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publishTime: priceFeedAccount.priceMessage.publishTime.toNumber(),
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};
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} else {
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return undefined;
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}
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} catch (e) {
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console.error(`Polling on-chain price for ${priceId} failed. Error:`);
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console.error(e);
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return undefined;
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}
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}
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}
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export class SolanaPricePusher implements IPricePusher {
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constructor(
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private pythSolanaReceiver: PythSolanaReceiver,
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private priceServiceConnection: PriceServiceConnection,
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private shardId: number,
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private computeUnitPriceMicroLamports: number
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) {}
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async updatePriceFeed(
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priceIds: string[],
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pubTimesToPush: number[]
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): Promise<void> {
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if (priceIds.length === 0) {
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return;
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}
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let priceFeedUpdateData;
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try {
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priceFeedUpdateData = await this.priceServiceConnection.getLatestVaas(
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priceIds
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);
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} catch (e: any) {
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console.error(new Date(), "getPriceFeedsUpdateData failed:", e);
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return;
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}
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const transactionBuilder = this.pythSolanaReceiver.newTransactionBuilder({
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closeUpdateAccounts: false,
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});
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transactionBuilder.addUpdatePriceFeed(priceFeedUpdateData, this.shardId);
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try {
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await this.pythSolanaReceiver.provider.sendAll(
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await transactionBuilder.buildVersionedTransactions({
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computeUnitPriceMicroLamports: this.computeUnitPriceMicroLamports,
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})
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);
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console.log(new Date(), "updatePriceFeed successful");
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} catch (e: any) {
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console.error(new Date(), "updatePriceFeed failed", e);
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return;
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}
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}
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}

‎target_chains/solana/programs/pyth-push-oracle/src/lib.rs‎

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#[account(mut)]
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pub payer: Signer<'info>,
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pub pyth_solana_receiver: Program<'info, PythSolanaReceiver>,
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/// CHECK: Checked by CPI into the Pyth Solana Receiver
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pub encoded_vaa: AccountInfo<'info>,
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/// CHECK: Checked by CPI into the Pyth Solana Receiver
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pub config: AccountInfo<'info>,
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/// CHECK: Checked by CPI into the Pyth Solana Receiver
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#[account(mut)]
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pub treasury: AccountInfo<'info>,
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/// CHECK: This account's seeds are checked
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#[account(mut, seeds = [&shard_id.to_le_bytes(), &feed_id], bump)]
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pub price_feed_account: AccountInfo<'info>,
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pub system_program: Program<'info, System>,

‎target_chains/solana/pyth_solana_receiver_sdk/src/lib.rs‎

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@@ -12,4 +12,4 @@ pub mod price_update;
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declare_id!("rec5EKMGg6MxZYaMdyBfgwp4d5rB9T1VQH5pJv5LtFJ");
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pub const PYTH_PUSH_ORACLE_ID: Pubkey = pubkey!("F9SP6tBXw9Af7BYauo7Y2R5Es2mpv8FP5aNCXMihp6Za");
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pub const PYTH_PUSH_ORACLE_ID: Pubkey = pubkey!("pythWSnswVUd12oZpeFP8e9CVaEqJg25g1Vtc2biRsT");

‎target_chains/solana/sdk/js/pyth_solana_receiver/package.json‎

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{
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"name": "@pythnetwork/pyth-solana-receiver",
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"version": "0.3.0",
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"version": "0.4.0",
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"description": "Pyth solana receiver SDK",
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"homepage": "https://pyth.network",
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"main": "lib/index.js",

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