If you're getting into blockchain as a developer, it's not just about writing smart contracts. You need to understand the network, wallet, RPC, explorer, testnet, and frontend integration, all together.
Solidity
Widely known as an Ethereum-compatible smart contract language. You shouldn't deploy to mainnet without knowing its security patterns.
Testnet vs Mainnet
You test with fake/test coins on testnet, while mainnet can involve assets with real monetary value.
RPC Endpoint
A gateway/API endpoint that the frontend/backend uses to send requests to a blockchain node.
Wallet Connection
The flow where a user's wallet is connected and asked to sign, enabling contract calls and transactions.
Visual Flow
Write ContractUnit TestDeploy to TestnetVerify on ExplorerConnect FrontendSecurity ReviewDeploy Mainnet Carefully
⚠️ Safety Note
Before deploying to mainnet, carefully check things like testing, audits, access control, upgradeability, private key security, environment variables, and contract ownership transfer.
On the blockchain developer path, a security-first mindset matters more than just being able to write code.