Place basket and multi-leg orders safely

Basket and multi-leg workflows involve several related orders. The Guide focuses on preparation, validation, execution sequence and post-order verification.

Step-by-step workflow

1. 1

   Define the complete set of legs

   List every leg with its instrument, side, quantity, order type and role in the overall trade.

2. 2

   Validate instrument, side, quantity and order details

   Validate each symbol and confirm that all quantities and sides match the intended strategy before submitting any order.

3. 3

   Choose basket or multi-leg execution

   Use the supported basket or multi-leg workflow that matches the required execution behaviour. Review any differences in validation and response handling.

4. 4

   Submit the request

   Submit the complete request once and retain the response for every leg.

5. 5

   Check each leg result

   Review each leg independently. A successful request does not guarantee that every leg has the same final status.

6. 6

   Handle partial or failed execution

   Define the action for partial fills or failed legs before execution. Recheck live order and position state before placing corrective orders.

7. 7

   Verify the result

   Check the relevant API response and account or market-data state to confirm that the workflow completed successfully. If the result is partial or unsuccessful, review the returned status and message before deciding whether to retry or take another action.

Common issues

HTTP/1.1 401 Unauthorized
{"s":"error","code":-8,"message":"Could not authenticate the user"}

HTTP/1.1 400 Bad Request
{"s":"error","code":-50,"message":"Please provide valid order parameters"}

HTTP/1.1 429 Too Many Requests
Retry-After: 1
{"s":"error","message":"Rate limit exceeded"}

Error: socket hang up
ECONNRESET

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Related API reference

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