Clear DefinitionsOracle Proxy Pattern
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Pronunciation
[awr-uh-kl prok-see pat-ern]
Analogy
Like calling a company’s main receptionist who forwards your call to whichever department handles your request, a proxy routes calls to the active oracle logic.
Definition
A smart contract design where consumer contracts interact with a proxy that delegates calls to the current oracle implementation, enabling seamless upgrades without changing consumer addresses.
Key Points Intro
The oracle proxy pattern supports upgradeable oracle contracts while preserving consumer integrations.
Key Points
Proxy contract: Fixed address forwarding to implementation.
Implementation: Logic contract that can be swapped.
Admin control: Only governance or multi‑sig can upgrade.
Storage separation: Proxy holds state, implementation has logic.
Example
Consumers call `OracleProxy.getPrice()`, which delegates to `OracleV2` after an upgrade without changing the proxy address.
Technical Deep Dive
Uses EIP‑1967: proxy stores `implementation` at predefined slot. `fallback()` uses `delegatecall` to forward. `upgradeTo()` protected by multi‑sig updates implementation address.
Security Warning
Upgrade mechanism can be exploited if admin keys compromised; secure with time-lock and multi‑sig.
Caveat
Delegatecall risks storage collisions; follow standardized proxy layouts.
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