// Basic order example: place a resting limit buy on testnet, then cancel it.

// Usage: basic_order [private_key_hex]

// If no argument is provided, falls back to the hardhat test key.

#include <hyperliquid/hyperliquid.hpp>

#include <iostream>

#include <string>

static constexpr const char* kDefaultKey =

"0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80";

int main(int argc, char* argv[]) {

const std::string private_key = (argc >= 2) ? argv[1] : kDefaultKey;

// Create a shared Info instance (skip WebSocket for this simple example)

auto info = std::make_shared<hyperliquid::Info>(

hyperliquid::TESTNET_API_URL, /*skip_ws=*/true);

// Create Exchange with the provided (or default) private key

hyperliquid::Exchange exchange(

private_key,

hyperliquid::TESTNET_API_URL,

info);

std::cout << "Wallet: " << exchange.wallet_address() << "\n";

// Print open positions

auto state = info->user_state(exchange.wallet_address());

std::cout << "Account value: "

<< state["marginSummary"]["accountValue"] << "\n";

// Place a resting limit buy for 0.01 ETH at $1100 (well below market)

auto result = exchange.order(

"ETH", /*is_buy=*/true, /*sz=*/0.01, /*limit_px=*/1100.0,

hyperliquid::LimitOrderType{hyperliquid::Tif::Gtc});

std::cout << "Order result:\n" << result.dump(2) << "\n";

// Cancel if it's resting

if (result.value("status", "") == "ok") {

const auto& statuses = result["response"]["data"]["statuses"];

if (!statuses.empty() && statuses[0].contains("resting")) {

int64_t oid = statuses[0]["resting"]["oid"].get<int64_t>();

std::cout << "Order resting with oid=" << oid << ", cancelling…\n";

auto cancel = exchange.cancel("ETH", oid);

std::cout << "Cancel result:\n" << cancel.dump(2) << "\n";

}

}

return 0;

}