last changes'

Author: yaanakbr

python/hip3_order.py

@@ -10,7 +10,7 @@
     print(f"Could not fetch {COIN} mid price, using fallback")
     mid = 78.0
 
-sz = round(10.0 / mid, 2)
+sz = round(11.0 / mid, 2)
 buy_px = round(mid * 1.03, 2)
 
 print(f"{COIN} mid: ${mid:,.2f}")

rust/examples/modify_order.rs

@@ -0,0 +1,84 @@
+use hyperliquid_api_examples::Client;
+use serde_json::json;
+
+const COIN: &str = "BTC";
+
+#[tokio::main]
+async fn main() {
+    let client = Client::from_env();
+
+    let mid = client.get_mid(COIN).await;
+    if mid == 0.0 {
+        eprintln!("Could not fetch {COIN} mid price");
+        std::process::exit(1);
+    }
+
+    let sz = format!("{:.5}", 11.0 / mid);
+    let rest_px = format!("{}", (mid * 0.97) as u64);
+
+    println!("{COIN} mid: ${mid:.2}");
+    println!("Placing resting BUY {sz} @ {rest_px} (GTC, 3% below mid)\n");
+
+    // Place resting order
+    let res = client
+        .exchange(&json!({
+            "action": {
+                "type": "order",
+                "orders": [{"asset": COIN, "side": "buy", "price": rest_px, "size": sz, "tif": "gtc"}],
+            },
+        }))
+        .await;
+
+    let hash = res["hash"].as_str().unwrap();
+    let sig = client.sign_hash(hash).await;
+
+    let result = client
+        .exchange(&json!({
+            "action": res["action"],
+            "nonce": res["nonce"],
+            "signature": sig,
+        }))
+        .await;
+
+    let exchange_resp = &result["exchangeResponse"];
+    let statuses = exchange_resp["response"]["data"]["statuses"]
+        .as_array()
+        .expect("No statuses in response");
+
+    let oid = statuses
+        .iter()
+        .find_map(|s| s["resting"]["oid"].as_u64())
+        .expect("Could not extract OID from resting order");
+
+    let new_px = format!("{}", (mid * 0.96) as u64);
+    println!("Order resting (OID: {oid})");
+    println!("Modifying price: {rest_px} -> {new_px}\n");
+
+    // Modify order
+    let modify_action = json!({
+        "type": "batchModify",
+        "modifies": [{
+            "oid": oid,
+            "order": {"asset": COIN, "side": "buy", "price": new_px, "size": sz, "tif": "gtc"},
+        }],
+    });
+
+    let res = client.exchange(&json!({"action": modify_action})).await;
+
+    let hash = res["hash"].as_str().unwrap();
+    let sig = client.sign_hash(hash).await;
+
+    let modify_result = client
+        .exchange(&json!({
+            "action": modify_action,
+            "nonce": res["nonce"],
+            "signature": sig,
+        }))
+        .await;
+
+    println!(
+        "{}",
+        serde_json::to_string_pretty(&modify_result["exchangeResponse"]).unwrap()
+    );
+    println!("\nOrder modified.");
+}