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Constructor

  • Sets up the RPC URL, provider, signer, and transaction history.

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Connecting to Shardeum and Authentication

  • Checks for window.ethereum (MetaMask or similar wallet).
  • Requests account access and gets a signer for transactions.

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Performing a Sample Request: eth_getBalance

  • Uses a raw JSON-RPC call to get an account’s balance.
  • Converts the result from Wei to SHM for readability.

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Sending Transactions: sendSHM

  • Converts SHM to Wei, gets gas price, and sends a transaction using the signer.
  • Handles user approval and transaction hash retrieval.

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Other Helper Functions

  • getCurrentAddress(), getMyBalance(), getGasPrice(), getTransactionByHash(), donate(), formatSHM(), parseSHM().
Each method is wrapped in robust error handling for a smooth developer experience.