case .getTransactions(_, let server, let address, let startBlock, let endBlock, let sortOrder):
            switch server {
            case .main, .kovan, .ropsten, .rinkeby, .goerli:
                return .requestParameters(parameters: [
                    "module": "account",
                    "action": "txlist",
                    "address": address,
                    "startblock": startBlock,
                    "endblock": endBlock,
                    "sort": sortOrder.rawValue,
                    //"apikey": Constants.Credentials.etherscanKey,
                ], encoding: URLEncoding())
            case .classic, .callisto, .custom, .poa, .sokol, .xDai, .artis_sigma1, .artis_tau1, .binance_smart_chain, .binance_smart_chain_testnet, .heco, .heco_testnet, .fantom, .fantom_testnet, .avalanche, .avalanche_testnet, .polygon, .mumbai_testnet:
                return .requestParameters(parameters: [
                    "module": "account",
                    "action": "txlist",
                    "address": address,
                    "startblock": startBlock,
                    "endblock": endBlock,
                    "sort": sortOrder.rawValue,
                ], encoding: URLEncoding())
            }