May 19
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Prediction markets are one of the most powerful applications of blockchain technology enabling anyone, anywhere, to bet on real-world outcomes in a trustless, transparent way. But they only work if the smart contract can reliably know what happened in the real world. That's where oracles come in. In this video, we'll build a fully functional decentralized prediction market from scratch, integrating Chainlink oracles to fetch real-world data and resolve markets automatically. What You'll Learn: - What prediction markets are and how they work - Why decentralization matters for prediction markets - The oracle problem and how Chainlink solves it - Designing a prediction market architecture - Writing the market contract in Solidity - Creating markets with binary (yes/no) outcomes - Handling deposits, shares, and payouts - Implementing a constant-product AMM for pricing - Integrating Chainlink Data Feeds for resolution - Using Chainlink Functions for custom data sources - Automating market settlement with Chainlink Automation - Handling disputes and edge cases - Deploying to a testnet and verifying on Etherscan - Real-world prediction markets (Polymarket, Augur) Tools & Tech Used: - Solidity - OpenZeppelin Contracts - Chainlink Data Feeds - Chainlink Functions - Chainlink Automation (Keepers) - Hardhat / Foundry - MetaMask - Sepolia Testnet - Etherscan SUBSCRIBE for more Solidity & Web3 dev tutorials LIKE if this helped you understand prediction markets COMMENT what market you'd build first DISCLAIMER: This video is for educational purposes only and is not financial, legal, or gambling advice. Prediction markets may be subject to regulatory restrictions in your jurisdiction. Always DYOR and consult professionals before deploying or operating a prediction market publicly. Music track: memories by massobeats Source: https://freetouse.com/music #PredictionMarkets #Chainlink #SmartContracts prediction market, decentralized prediction market, build prediction market, solidity prediction market, chainlink oracle, chainlink integration, oracle smart contract, chainlink data feeds, chainlink functions, chainlink automation, chainlink keepers, polymarket, augur, defi tutorial, solidity tutorial, smart contract tutorial, ethereum development, web3 development, hardhat, foundry, openzeppelin, amm prediction market, binary options smart contract, on-chain betting, decentralized betting, oracle problem, real world data blockchain, dapp development, blockchain development, ethereum smart contracts, web3 tutorial, crypto prediction market, defi project, build a defi app, sepolia testnet