Quiz — Signer

Question

Confirm: 3-trait split (Signer + TxSigner<N> + SignerSync), 5 PrivateKeySigner constructors, AwsSigner DER + recovery, WalletFiller as TxFiller<N>.

Principle (minimum model)

• Signer / TxSigner / SignerSync split + PrivateKeySigner 5 constructors + AwsSigner KMS + DER recovery + WalletFiller TxFiller<N>.

Worked example + steps

Quiz: did the Signer model stick?

Four questions covering the design decisions across the Signer buildup and walkthrough. Same rule as the other Intermediate quizzes: you can't nod past a quiz.

If you miss two or more, scroll back to Building the Signer trait step by step before going on to the drill.

Summary (3 lines)

• Quiz confirms Signer trait understanding.
• Get two+ wrong → re-read buildup + walkthrough.
• Pass → drill: ship end-to-end signed tx via FillProvider chain.