use Mix.Config config :indexer, block_interval: :timer.seconds(5), blocks_concurrency: 1, receipts_concurrency: 1, json_rpc_named_arguments: [ transport: if(System.get_env("ETHEREUM_JSONRPC_JSON_RPC_TRANSPORT", "http") == "http", do: EthereumJSONRPC.HTTP, else: EthereumJSONRPC.IPC ), transport_options: [ http: EthereumJSONRPC.HTTP.HTTPoison, url: System.get_env("ETHEREUM_JSONRPC_HTTP_URL") || "http://localhost:8545", method_to_url: [ eth_getBalance: System.get_env("ETHEREUM_JSONRPC_TRACE_URL") || "http://localhost:8545", trace_block: System.get_env("ETHEREUM_JSONRPC_TRACE_URL") || "http://localhost:8545", trace_replayBlockTransactions: System.get_env("ETHEREUM_JSONRPC_TRACE_URL") || "http://localhost:8545" ], http_options: [recv_timeout: :timer.minutes(10), timeout: :timer.minutes(10), hackney: [pool: :ethereum_jsonrpc]] ], variant: EthereumJSONRPC.RSK ], subscribe_named_arguments: [ transport: System.get_env("ETHEREUM_JSONRPC_WS_URL") && EthereumJSONRPC.WebSocket, transport_options: [ web_socket: EthereumJSONRPC.WebSocket.WebSocketClient, url: System.get_env("ETHEREUM_JSONRPC_WS_URL") || "ws://localhost:8546" ] ]