Storage Demo

This git repository serves the purpose of providing example and facilitating continuous integration (CI) for:

• forking, reading, writing EVM storage with 0xweb and hardhat.
• dump and restore contracts storage

Further reading https://dev.kit.eco/ethereum-autogenerated-typescript-classes-to-read-and-write-contracts-private-state-variables

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1. How was this project bootstrapped.

$ npm i 0xweb -g
$ 0xweb init --hardhat
$ 0xweb i 0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 --name USDC --chain eth

2. Forking the mainnet in hardhat.config.js

Public Ankr RPC node is used.

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forking, reading, writing

3. What actions were added in usdc.act.ts

• create-accounts: Generate foo and bar accounts (address+private key)
• set-balance: Modify the EVM storage in USDC contract to set the balance for the address foo to have 50_000$
• transfer-balance: Execute normal transaction to transfer the balance from foo to bar

4. How we test the actions in usdc.spec.ts

• create-accounts: Execute action and check the output
• set-balance: Execute action and use 0xweb cli to check the foo balance
• transfer-balance: Execute action and use 0xweb cli to ensure foo balance is empty, but the bar address has funds

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dump, restore

5. What actions were added in dump.act.ts

• deploy original and configure: Deploy first contract and manually set new values
• dump original contract: Dump first contract's storage
• should redeploy contract: Deploy second contract, which storage remains initial
• should restore from dump: Restores the contracts storage from dump

6. How we test the actions in dump.spec.ts

• Check values of the original contracts
• Dumps original contract and checks the JSON data
• Restore the dump to a new contract and verify the data on-chain

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🏁 0xweb.org