1. Minimal Proxy (EIP-1167)

A Minimal Proxy contract is designed for creating multiple lightweight copies of a contract (clones), without redeploying the entire contract logic each time.

Key Idea

• Imagine you have a Wallet contract or Escrow contract with certain logic.
• Many users want to use this wallet, but you don't want to deploy the same full contract for every user because:
  • It is expensive (high gas fees).
  • The logic is the same for all users.

Solution:

• Deploy the original contract (the logic contract) once.
• For each new user, deploy a small proxy (clone) that:
  • Delegates calls to the main logic contract.
  • Has its own storage and state variables, so each user’s data is separate.

This clone contract is extremely small (only contains a few opcodes) and is called minimal because it:

• Does not duplicate logic.
• Only forwards calls to the main contract using DELEGATECALL.

How it works

• When a user calls a function on the clone contract, the call is delegated to the logic contract.

• The logic (code) of the logic contract is used.

• The storage (state) remains inside the clone contract.

  So, each user’s clone has its own data.

Why use Minimal Proxy?