2022-02-24
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Pranesh A. S.
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Feb 24, 2022 ⋅ 8 min read

Using the UUPS proxy pattern to upgrade smart contracts

Pranesh A. S. Backend Engineer and Blockchain Developer. Keep learning, spread knowledge.

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4 Replies to "Using the UUPS proxy pattern to upgrade smart contracts"

  1. Do we really need to import Initializer in our Pizza contract (Considering UUPSUpgradeable already has it). Or was it done here only to make tutorial more readable and understandable?

  2. Even though the contract inherit from UUPSUpgradable, upgradable pattern has to be specified in deployProxy function. Otherwise it defaults to transparent proxy.
    Should be something like this.
    const Box = await ethers.getContractFactory(“BoxV1UUPS”);
    console.log(“Deploying Box…”);
    const box = await upgrades.deployProxy(Box, [42], {
    initializer: “store”,
    kind: “uups”,
    });

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