https://github.com/boraxpr/boraxpr-etherium-client
A Blockchain Learning Experiment: Exploring Ethereum, Web3.js, and backend integration with Ganache.
https://github.com/boraxpr/boraxpr-etherium-client
ethereum
Last synced: about 2 months ago
JSON representation
A Blockchain Learning Experiment: Exploring Ethereum, Web3.js, and backend integration with Ganache.
- Host: GitHub
- URL: https://github.com/boraxpr/boraxpr-etherium-client
- Owner: boraxpr
- Created: 2024-11-23T18:24:21.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-11-23T18:28:59.000Z (over 1 year ago)
- Last Synced: 2026-03-01T21:15:23.439Z (4 months ago)
- Topics: ethereum
- Language: JavaScript
- Homepage:
- Size: 152 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
## boraxpr-etherium-client - Experiment with Decentralized Apps (dApp)
### Overview
This project is a **learning experiment** where I explored connecting a Node.js backend to an Ethereum blockchain using Ganache (a local Ethereum test network). My goal was to understand how blockchain interactions workin a decentralized environment and to gain hands-on experience with Ethereum development tools like Ganache, Web3.js, and PM2.
### Ganache
### PM2
### Why This Project?
I wanted to explore the basics of building a dApp because I was curious about how blockchain technology could be used to create secure and transparent applications. Additionally, I aimed to understand the practical aspects of working with smart contracts and decentralized networks in a real-world scenario.
### What I Did
- **Set up Ganache** to simulate an Ethereum network for testing purposes.
- Built a **Node.js backend** (using CommonJS) to interact with the blockchain, query balances, and send transactions.
- Learned how to use **Web3.js** to interact with Ethereum and check account balances.
- Installed and used **PM2** for process management and monitoring.
### The "Aha!" Moment
While building the backend, I realized that in a **decentralized application (dApp)**, users should **never send their private keys to a backend server**. This was a critical moment for me to understand that **dApps are entirely frontend** for security reasons, and handling private keys on the backend is a **security risk**. This was a realization about how decentralization and blockchain security work at a deeper level.
### What I Learned
1. **Blockchain Basics:** How to connect to a blockchain, interact with it, and query user data.
2. **Security Practices in dApps:** The importance of never storing or handling private keys on the backend.
3. **Frontend vs Backend in dApps:** Understanding that most blockchain interactions in production dApps occur on the frontend for privacy and security.
### Future Plans
- Refactor this project to implement proper **frontend dApp** architecture.
- Continue learning about **Web3.js**, Ethereum, and other blockchains like **Solana**.
- Explore how to implement a **secure wallet integration** (e.g., MetaMask) on the frontend without compromising user privacy.
---
### Installation & Usage
1. Install dependencies:
```bash
npm install
```
2. Create a `.env` file with your Ganache URL and private key:
```env
CHAIN_URL=http://localhost:7545
PRIVATE_KEY=your-ethereum-private-key
```
3. Start the app:
```bash
node index.js
```
---
### Final Thoughts
This project has been an exciting learning experience, and I'm continuing to iterate on it. Although it’s not a full-fledged dApp yet, I hope it serves as a reminder that the journey of learning and building is just as important as the final product. I’m excited to take these lessons into future blockchain projects.