EmekaManuel

Using Pyth Price Feeds on Solana with Anchor

Overview

Price feeds are essential for DeFi applications - they let smart contracts access real-time market data. Pyth Network provides high-frequency, low-latency price feeds directly on-chain, which makes it perfect for Solana apps. In this guide, we'll build a Solana program using Anchor that fetches and displays real-time crypto price data from Pyth Network.

Understanding the basic integration flow is straightforward once you grasp the core concepts. The main challenge typically involves configuring all dependencies correctly.

What we'll cover:

EmekaManuel

/* eslint-disable @typescript-eslint/no-explicit-any */
import axios, { AxiosError, AxiosRequestConfig, AxiosResponse } from 'axios';
import { jwtDecode } from 'jwt-decode';

// Define interfaces
interface DecodedToken {
    roles: string[];
    sub: string; // email
    iat: number; // issued at timestamp
    exp: number; // expiry timestamp

EmekaManuel

import java.util.*

// Name: Nwangwu Chibuikem John-Sinclair
// Reg Number: 2020/247006
// Department: Computer Science (200 level)

public class MinHeap {
private int[] data;
private int size;
private int maxSize;

EmekaManuel

/**
 *Submitted for verification at Arbiscan on 2023-02-22
 */

// TWITTER: https://twitter.com/ARBSUI
// Telegram: https://t.me/
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.5;

EmekaManuel

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to

EmekaManuel

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**