Clear DefinitionsMulticall Contracts
1 min read
Pronunciation
[mul-tee-kawl kon-trakts]
Analogy
Like ordering a combo meal that bundles burger, fries, and drink in one order instead of placing three separate orders.
Definition
Smart contracts that batch multiple read or write calls into a single transaction, reducing gas overhead and ensuring atomic execution of grouped operations.
Key Points Intro
Multicall contracts optimize gas and simplify complex on‑chain interactions.
Key Points
Batching: Aggregates multiple `call()`s into one on-chain transaction.
Atomicity: All calls succeed or the entire batch reverts.
Gas savings: Shares transaction overhead across calls.
Read-only: Often used for aggregating view functions without gas.
Example
Technical Deep Dive
Multicall contract loops over `bytes[] calls`, performing `delegatecall` or `staticcall` for each, storing results in an array, and returns aggregated data. Gas stipend checks prevent out-of-gas mid-batch.
Security Warning
Batching state-changing calls can cause unexpected interactions; ensure proper ordering and input validation.
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