ExWeb3 / elixir_ethers / 638f0a6142bb2b8140aeb6cc047333b363a9a72e-PR-270

90%

main: 90%

Pull #270

github

Return {:error, :not_supported} when eth_feeHistory is unavailable

Ethers.fee_history/4 called the optional eth_fee_history/4 adapter callback
directly, raising UndefinedFunctionError on RPC client adapters that do not
implement it. Guard with function_exported?/3 and return an error tuple
instead, keeping the {:ok, _} | {:error, _} contract.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012pKYp3j1ew76CY7HA2nBTF

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