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A comprehensive Web3 library for interacting with smart contracts on Ethereum using Elixir.

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ethers lib ethers rpc_client.ex
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lib/ethers/rpc_client.ex 

defmodule Ethers.RpcClient do

  @moduledoc false



  @doc false

  @spec rpc_client() :: atom()

  def rpc_client do

    case Application.get_env(:ethers, :rpc_client, Ethereumex.HttpClient) do

      Ethereumex.HttpClient -> Ethers.RpcClient.EthereumexHttpClient

      module when is_atom(module) -> module

      _ -> raise ArgumentError, "Invalid ethers configuration. :rpc_client must be a module"

    end

  end



  @doc false

  @spec get_rpc_client(Keyword.t()) :: {atom(), Keyword.t()}

  def get_rpc_client(opts) do

    module =

      case Keyword.fetch(opts, :rpc_client) do

        {:ok, module} when is_atom(module) -> module

        :error -> Ethers.rpc_client()

      end



    {module, Keyword.get(opts, :rpc_opts, [])}

  end

end