Capstone · The final challenge
Build Your First
eUTxO Transaction.
Everything you've learned, in one sandbox. Pick which UTxOs you spend. Define where the value goes. Set the script context. Choose a redeemer. Run the validator. The capstone is complete once the validator accepts a transaction that spends at least one script-locked UTxO and sends value to two or more outputs.
- 1Inputs
- 2Outputs
- 3Context
- 4Redeemer
- 5Simulate
Step 1 · Pick your inputs
A wallet is a collection of UTxOs. Drag the ones you want to spend into the transaction tray, or click to toggle. Your own wallet UTxOs belong to alice and need her signature. Script-locked UTxOs require their validator to approve the spend.
Wallet UTxOs
28 ada
a1b2…e3f4#0
13.5 ada
c4d5…a6b7#0
6 ada
d8e9…b1c2#1
32 ada
f0a1…d2e3#0
🔒 vesting
18 ada
a9b8…c7d6#0
🔒 sig-required
Selected inputs · 0
Drop UTxOs here. They become the inputs of your transaction.
Tips when the validator rejects
- Inputs short. Inputs must cover outputs + fee. Add a bigger input or reduce an output.
- Vesting not yet claimable. Set the validity interval to start at slot 1000 or later, or use the Cancel redeemer.
- Required signer missing. Step 3 sets the signers list. Make sure the beneficiary or required signer is in there, and alice too whenever you spend one of her wallet UTxOs.
- Wrong redeemer for the validator. Vesting expects Claim or Cancel. Signature-required validators only need Unit.
