Penerapan ke Jaringan Uji dan Jaringan Utama
Pahami proses menerapkan DApp Anda ke jaringan uji publik untuk pengujian akhir, lalu pada akhirnya ke jaringan utama Ethereum.
Penerapan ke Jaringan Uji dan Jaringan Utama adalah pelajaran NestJS Enterprise Backend APIs gratis di CoddyKit. Ini adalah pelajaran 6 dari 6. 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 NestJS Enterprise Backend APIs, dan progresmu tersinkronisasi di web dan aplikasi CoddyKit. Kursus NestJS Enterprise Backend APIs mencakup 6 pelajaran total.
Bagian dari pelajaran ini belum diterjemahkan dan ditampilkan dalam bahasa Inggris.
What is DApp Deployment?
Welcome! Today, we'll learn about deploying Decentralized Applications (DApps). Deployment is the process of publishing your smart contracts and associated front-end code to a blockchain network.
It's a crucial step that makes your DApp accessible to users worldwide. Without deployment, your DApp remains just code on your computer.
Why Deploy to Testnets First?
Before launching your DApp to the world, it's vital to test it thoroughly. This is where testnets come in!
- Testnets are separate blockchain networks that mimic the main Ethereum network.
- They use 'test Ether' (fake currency) for transactions, so you can test without risking real funds.
- This allows developers to find and fix bugs, ensuring the DApp works as expected.
Key Ethereum Testnets
Ethereum has several public testnets. The most prominent one currently is Sepolia.
- Sepolia: This is the recommended testnet for new development. It's a proof-of-stake network, like the Ethereum mainnet.
- Historically, there were others like Goerli, but Sepolia is now the primary choice for testing smart contracts and DApps.
Connecting to a Testnet
To deploy to a testnet, your development environment (like Hardhat or Truffle) needs to connect to it. This is usually done via an RPC URL provided by a service like Infura or Alchemy.
These services act as a gateway, allowing your tools to communicate with the blockchain without running a full node yourself. You'll need an API key for access.
Getting Test Ether (Faucets)
On a testnet, every transaction (including contract deployment) requires gas, paid in test Ether. You can get free test Ether from a faucet.
A faucet is a web service that sends small amounts of test Ether to your wallet address. Simply visit a Sepolia faucet website, enter your address, and request funds.
Deployment Scripts
Deploying smart contracts manually can be tedious. That's why we use deployment scripts, typically written in JavaScript.
These scripts automate the process of compiling your contract, signing the transaction with your private key, and sending it to the chosen blockchain network (testnet or mainnet).
Understanding Gas for Deployment
Every operation on Ethereum, including contract deployment, consumes gas. Gas is a unit that measures the computational effort required.
- Gas Limit: The maximum gas you're willing to spend.
- Gas Price: How much Ether you're willing to pay per unit of gas.
- Total Cost: Gas Limit × Gas Price.
Deployment is often one of the most gas-intensive transactions.
Connecting to a Network Example
Here's a simple JavaScript snippet using Ethers.js to connect to an Ethereum network and fetch its current block number. This is a foundational step for any deployment script.
Remember to replace YOUR_INFURA_API_KEY with your actual key.
const { ethers } = require("ethers");
async function main() {
// Connect to a Sepolia testnet RPC (Infura example)
const provider = new ethers.JsonRpcProvider("https://sepolia.infura.io/v3/YOUR_INFURA_API_KEY");
try {
const blockNumber = await provider.getBlockNumber();
console.log("Connected to network. Current block number:", blockNumber);
} catch (error) {
console.error("Failed to connect or get block number:", error.message);
}
}
main();Deploying to Mainnet
Once your DApp is thoroughly tested on testnets, you might consider deploying to the Ethereum Mainnet. This is the live, public blockchain where real assets and value exist.
- Real Funds: Mainnet deployments cost real Ether.
- Security: Ensure extensive audits and testing have been completed.
- Immutability: Once deployed, smart contracts are generally unchangeable.
Always proceed with extreme caution and ensure all configurations are correct!
Deployment Knowledge Check
You've learned about deploying DApps. Let's test your understanding!
Deployment Journey Recap
Well done! You've learned the essential steps for deploying DApps.
- We started with testnets for safe, free testing.
- We explored how to connect to networks and get test Ether.
- You now understand the role of deployment scripts and gas costs.
- Finally, we discussed the critical considerations for deploying to the mainnet.
This knowledge is fundamental for bringing your decentralized applications to life!
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Pertanyaan yang Sering Diajukan
Apakah pelajaran “Penerapan ke Jaringan Uji dan Jaringan Utama” gratis?
Ya — teks lengkap “Penerapan ke Jaringan Uji dan Jaringan Utama” gratis dibaca di sini di web. Untuk praktiknya secara interaktif (editor kode bawaan dan tutor AI 24/7) dan buka sisa kursus NestJS Enterprise Backend APIs, upgrade ke CoddyKit PRO. Kursus NestJS Enterprise Backend APIs mencakup 6 pelajaran total.
Apa yang akan aku pelajari di “Penerapan ke Jaringan Uji dan Jaringan Utama”?
Pahami proses menerapkan DApp Anda ke jaringan uji publik untuk pengujian akhir, lalu pada akhirnya ke jaringan utama Ethereum. Kamu berlatih NestJS Enterprise Backend APIs 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 NestJS Enterprise Backend APIs?
Tidak diperlukan pengalaman sebelumnya. NestJS Enterprise Backend APIs 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 6 dari 6.
Berapa lama pelajaran “Penerapan ke Jaringan Uji dan Jaringan Utama” 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 NestJS Enterprise Backend APIs ini?
Ya. Setiap pelajaran NestJS Enterprise Backend APIs menyertakan editor kode bawaan, jadi kamu menulis dan menjalankan kode nyata langsung di browser dan mendapatkan umpan balik AI instan — tidak diperlukan penyiapan lokal.
Semua pelajaran dalam kursus ini
- Pengujian Unit dan E2E
- Kerangka Kerja Hardhat dan Truffle
- Pengujian Kinerja API
- Pengujian Unit Kontrak Cerdas
- Kontainerisasi dengan Docker dan Kubernetes
- Penerapan ke Jaringan Uji dan Jaringan Utama