Web3 & DApp Development Fundamentals · Pelajaran

Gambaran Umum DeFi

Peminjaman, DEX, imbal hasil

Gambaran Umum DeFi adalah pelajaran Web3 & DApp Development Fundamentals gratis di CoddyKit. Ini adalah pelajaran 1 dari 4. Kamu bisa membaca pelajaran lengkapnya di bawah secara gratis — lalu praktikkan langsung di browser dengan editor kode bawaan dan tutor AI 24/7. Ini adalah bagian dari jalur belajar Web3 & DApp Development Fundamentals, dan progresmu tersinkronisasi di web dan aplikasi CoddyKit. Kursus Web3 & DApp Development Fundamentals mencakup 4 pelajaran total.

Bagian dari pelajaran ini belum diterjemahkan dan ditampilkan dalam bahasa Inggris.

What Is DeFi?

Decentralized Finance (DeFi) recreates financial services — lending, trading, borrowing, earning interest — using smart contracts on a blockchain instead of banks or brokers.

Anyone with a wallet can use these services permissionlessly, with no account approval and no intermediary holding the funds.

Smart Contracts as the Backbone

Every DeFi protocol is built from smart contracts: self-executing code deployed on-chain. The contract holds the rules and often the funds.

Because the logic is transparent and runs deterministically, users can audit exactly how a protocol behaves before trusting it.

Lending and Borrowing

Lending protocols like Aave and Compound let users deposit assets to earn interest, while borrowers take out loans against collateral.

Loans are overcollateralized: you must lock more value than you borrow, protecting lenders from default.

Deposit:  Alice supplies 1000 USDC -> earns APY
Borrow:   Bob locks 1.5 ETH collateral
          -> borrows 1000 USDC
If collateral value falls -> liquidation

Decentralized Exchanges (DEXs)

A DEX lets users swap tokens directly from their wallets without a centralized order book or custodian.

Most modern DEXs (Uniswap, Curve) use Automated Market Makers instead of matching buyers and sellers.

Yield and Liquidity Provision

Yield is the return earned by putting capital to work. Liquidity providers earn trading fees, lenders earn interest, and stakers earn protocol rewards.

This is the engine that attracts capital into DeFi.

Composability: Money Legos

DeFi protocols are composable — one contract can call another freely. A single transaction can borrow, swap, and deposit across several protocols.

This stacking of building blocks is nicknamed money legos.

tx {
    1. borrow USDC from Aave
    2. swap USDC -> ETH on Uniswap
    3. deposit ETH into a vault
}  // all atomic

Stablecoins

Stablecoins are tokens pegged to a stable value, usually the US dollar. They are the lifeblood of DeFi, used for trading pairs, loans, and savings.

Examples include USDC, USDT, and DAI (which is crypto-collateralized).

Governance and Tokens

Many DeFi protocols issue governance tokens that let holders vote on parameters like fees and supported assets.

This pushes control toward the community and away from a single company — a step toward true decentralization.

Risks in DeFi

DeFi is powerful but risky:

Smart contract bugs — code exploits drain funds
Oracle manipulation — bad price feeds
Liquidation — collateral sold in a crash
Impermanent loss — for liquidity providers

Oracles

Smart contracts cannot read off-chain data on their own. Oracles like Chainlink bring real-world prices on-chain so protocols know an asset is worth.

Reliable oracles are critical — a manipulated price can trigger wrongful liquidations or drain a pool.

Putting It Together

DeFi rebuilds finance as open, composable smart contracts: lending markets, DEXs, stablecoins, and yield strategies, all coordinated by governance and fed by oracles.

Next we focus on the core trading engine: Automated Market Makers.

Quick Check

Test your DeFi fundamentals.

Recap: DeFi Overview

You learned that:

DeFi recreates finance with smart contracts, no intermediaries
Core pieces: lending, DEXs, stablecoins, yield
Protocols are composable money legos
Oracles feed real-world prices on-chain
Risks include bugs, liquidation, and oracle attacks

Next: how AMMs price trades.

Pertanyaan yang Sering Diajukan

Apakah pelajaran “Gambaran Umum DeFi” gratis?

Ya — teks lengkap “Gambaran Umum DeFi” gratis dibaca di sini di web. Untuk praktiknya secara interaktif (editor kode bawaan dan tutor AI 24/7) dan buka sisa kursus Web3 & DApp Development Fundamentals, upgrade ke CoddyKit PRO. Kursus Web3 & DApp Development Fundamentals mencakup 4 pelajaran total.

Apa yang akan aku pelajari di “Gambaran Umum DeFi”?

Peminjaman, DEX, imbal hasil Kamu berlatih Web3 & DApp Development Fundamentals dengan kode praktik yang langsung kamu jalankan di browser, dan tutor AI 24/7 menjawab pertanyaanmu saat kamu mengerjakan pelajaran ini.

Apakah aku perlu pengalaman untuk memulai Web3 & DApp Development Fundamentals?

Tidak diperlukan pengalaman sebelumnya. Web3 & DApp Development Fundamentals di CoddyKit dirancang untuk pemula hingga pelajar tingkat lanjut, jadi kamu bisa memulai di sini atau dari awal dan belajar sesuai kecepatan kamu sendiri. Ini adalah pelajaran 1 dari 4.

Berapa lama pelajaran “Gambaran Umum DeFi” memakan waktu?

Sebagian besar pelajaran CoddyKit memakan waktu sekitar 5–10 menit. Setiap pelajaran ringkas dan interaktif, jadi kamu membuat kemajuan stabil dan melanjutkan dari tempat kamu tinggalkan di web dan aplikasi.

Bisakah aku menulis dan menjalankan kode dalam pelajaran Web3 & DApp Development Fundamentals ini?

Ya. Setiap pelajaran Web3 & DApp Development Fundamentals menyertakan editor kode bawaan, jadi kamu menulis dan menjalankan kode nyata langsung di browser dan mendapatkan umpan balik AI instan — tidak diperlukan penyiapan lokal.

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