Master Swaps, Bridges & Lending
Today you'll execute real transactions: swap tokens, bridge assets between chains, and lend on DeFi. The focus is UNDERSTANDING approvals — not just clicking through them.
⚠️ Critical: Understand Every Approval
When you approve a token for use in a dApp, you're giving it permission to spend that token on your behalf. ALWAYS read what you're approving for and HOW MUCH. This is how many users lose funds to malicious smart contracts.
Even though these are testnet transactions (no real money), PRACTICE reading approvals carefully. This habit will protect you with real money later.
What You'll Do: 3 Swaps on Uniswap
- ✓ Swap 1: ETH → Test Token (using contract address: 0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238)
- ✓ Swap 2: Test Token → ETH
- ✓ Swap 3: ETH → Test Token (practice the process again)
Step 1: Go to Uniswap
- 1
Go to app.uniswap.org
Make sure you're on the Sepolia network in MetaMask.
- 2
Connect your wallet
Click "Connect Wallet" and select MetaMask.
- 3
Select "From" token (ETH)
ETH should be selected by default.
- 4
Select "To" token (Test Token)
Click the dropdown, paste this contract address:
0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238💡 Without the contract address, Uniswap won't show the token. That's normal — it's a security feature to prevent fake tokens.
- 5
Enter amount and click "Swap"
Start with 0.01 ETH. This will trigger a MetaMask popup.
⚠️ When the Approval Popup Appears
MetaMask will show a popup asking you to approve the token transfer. READ CAREFULLY:
- ✓ What contract is asking permission? (Should be Uniswap's SwapRouter)
- ✓ What token is being approved? (Should be ETH)
- ✓ How much are you approving? (Should be 0.01 ETH, not infinite)
If anything looks wrong, CLICK REJECT. Never approve infinite amounts for unknown contracts.
✓ After Swap Completes
Wait 30 seconds. You'll see the Test Token appear in your MetaMask wallet. Now repeat this 2 more times (swap back to ETH, then back to Test Token again).
✓ Day 2 Complete Checklist
You've now done the three core DeFi actions. Tomorrow you'll connect to real task-earning platforms (TaskOn and Zealy) to start building your on-chain resume.
Continue to Day 3