fix: exchange.multi_sig() always returns "Invalid multi-sig outer signer" for User-Signed Actions (sendAsset)

hyperliquid/exchange.py

@@ -1078,17 +1078,18 @@ def c_validator_unregister(self) -> Any:
 
     def multi_sig(self, multi_sig_user, inner_action, signatures, nonce, vault_address=None):
         multi_sig_user = multi_sig_user.lower()
+        is_mainnet = self.base_url == MAINNET_API_URL
+        chain_id = "0xa4b1" if is_mainnet else "0x66eee"
         multi_sig_action = {
             "type": "multiSig",
-            "signatureChainId": "0x66eee",
+            "signatureChainId": chain_id,
             "signatures": signatures,
             "payload": {
                 "multiSigUser": multi_sig_user,
                 "outerSigner": self.wallet.address.lower(),
                 "action": inner_action,
             },
         }
-        is_mainnet = self.base_url == MAINNET_API_URL
         signature = sign_multi_sig_action(
             self.wallet,
             multi_sig_action,

hyperliquid/info.py

@@ -608,11 +608,35 @@ def delegator_history(self, user: str) -> Any:
         """
         return self.post("/info", {"type": "delegatorHistory", "user": user})
 
-    def query_order_by_oid(self, user: str, oid: int) -> Any:
-        return self.post("/info", {"type": "orderStatus", "user": user, "oid": oid})
+    def query_order_by_oid(self, user: str, oid: int, dex: str = "") -> Any:
+        """Query order status by order ID.
 
-    def query_order_by_cloid(self, user: str, cloid: Cloid) -> Any:
-        return self.post("/info", {"type": "orderStatus", "user": user, "oid": cloid.to_raw()})
+        POST /info
+
+        Args:
+            user (str): Onchain address in 42-character hexadecimal format.
+            oid (int): Order ID.
+            dex (str): Optional DEX identifier (defaults to "" for the original DEX).
+
+        Returns:
+            Order status.
+        """
+        return self.post("/info", {"type": "orderStatus", "user": user, "oid": oid, "dex": dex})
+
+    def query_order_by_cloid(self, user: str, cloid: Cloid, dex: str = "") -> Any:
+        """Query order status by client order ID.
+
+        POST /info
+
+        Args:
+            user (str): Onchain address in 42-character hexadecimal format.
+            cloid (Cloid): Client order ID.
+            dex (str): Optional DEX identifier (defaults to "" for the original DEX).
+
+        Returns:
+            Order status.
+        """
+        return self.post("/info", {"type": "orderStatus", "user": user, "oid": cloid.to_raw(), "dex": dex})
 
     def query_referral_state(self, user: str) -> Any:
         return self.post("/info", {"type": "referral", "user": user})

hyperliquid/utils/signing.py

@@ -246,7 +246,8 @@ def sign_l1_action(wallet, action, active_pool, nonce, expires_after, is_mainnet
 def sign_user_signed_action(wallet, action, payload_types, primary_type, is_mainnet):
     # signatureChainId is the chain used by the wallet to sign and can be any chain.
     # hyperliquidChain determines the environment and prevents replaying an action on a different chain.
-    action["signatureChainId"] = "0x66eee"
+    if "signatureChainId" not in action:
+        action["signatureChainId"] = "0xa4b1" if is_mainnet else "0x66eee"
     action["hyperliquidChain"] = "Mainnet" if is_mainnet else "Testnet"
     data = user_signed_payload(primary_type, payload_types, action)
     return sign_inner(wallet, data)
@@ -312,9 +313,7 @@ def sign_multi_sig_l1_action_payload(
 
 
 def sign_multi_sig_action(wallet, action, is_mainnet, vault_address, nonce, expires_after):
-    action_without_tag = action.copy()
-    del action_without_tag["type"]
-    multi_sig_action_hash = action_hash(action_without_tag, vault_address, nonce, expires_after)
+    multi_sig_action_hash = action_hash(action, vault_address, nonce, expires_after)
     envelope = {
         "multiSigActionHash": multi_sig_action_hash,
         "nonce": nonce,