Aptos Move Architect

Move smart contracts on Aptos are built using modules that define resources, structs, and functions. Start by understanding Move fundamentals—modules, abilities, generics, and the resource model—then structure your contract with access control patterns, events for state changes, and Move.toml for package management. Test with unit tests and Move Prover for formal verification before deployment.

FA (Fungible Asset) and NFT standards in Move serve different token types on Aptos. FA handles homogeneous, divisible assets like coins; NFT standards manage unique, non-fungible digital items. Both use Aptos Objects for ownership and transfer, with Move's resource model enforcing strict asset control and preventing duplication.

Move contracts emit events by defining event structs and calling move_to or event::emit within functions. Access control uses pattern checks—verifying signer authority, object ownership, or custom capability structs—to gate sensitive operations. Combine these with Move's linear type system to ensure only authorized actors can execute state-changing actions.

Move Prover formally verifies Move code on Aptos by checking invariants, preconditions, and postconditions. Write specs alongside your module code, then run prover to prove absence of panics, assertion failures, and logical violations. This catches security flaws before deployment in production-ready scenarios.

Gas-optimized Move contracts minimize computation by using tables for sparse storage instead of vectors, batching operations, and avoiding redundant state checks. Design modules with efficient data structures, pack multiple writes into single transactions, and leverage Aptos Objects for scalable ownership—reducing per-transaction gas costs across projects of varying complexity.

Multisig patterns in Move enforce decisions requiring multiple approvers through capability passing and threshold checks. Randomness patterns use Aptos Move framework functions for on-chain random number generation. Include these patterns when your contract requires distributed authorization or nondeterministic behavior in gameplay, sampling, or governance workflows.