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Metamask Frontend Logic

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Process

  1. Find the ContractAddress. this will show up after you do truffle migrate
  2. Find the ContractABI which is a ABI for the Smart Contract
  3. Everytime you connect your Metamask wallet to the browser, an ethereum variable is injected into your browser window. This allows us to tell if a browser is web3 compatible
  4. Check if ethereum is null
  5. If ethereum is not null, get the chainID and userID

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