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public/subjects/blockchain/connect-to-metamask/README.md

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Connect To MetaMask

Instructions

Create a web page, connectToMetaMask.html that :

  • Loads an ethereum JavaScript Library. It should be the only JavaScript library.
  • Contains a Connect button that triggers metamask to ask the user to connect an account.
  • Once connected, the page displays :
    • the address of the account
    • the balance of this account
  • Contains a button Refresh balance that refreshes the balance.

Note on vocabulary :

A wallet is an object or a software that contains private keys and allows the user to sign them. An account is, on Ethereum, a particular address with an associated private key.

Most wallets, like MetaMask, can manage several accounts, often stemming from the same cryptographic seed. However, please be aware that some software use interchangeably accounts and wallets.

Notions

Relevance

We use a common wallet.