Error when placing bet: DSC-0018 / -32602

[rickdosgreens]

I've been using the example at and the API documentation to try and place an order, but get error code "-32602".

I'm pretty sure I put in all the required parameters in my request:

Error : SportsAPING/v1.0/placeOrders
Params: {'marketId': '1.210561438', 'instructions': [{'selection_id': '30246', 'side': 'Back', 'order_type': 'LIMIT', 'limit_order': {'size': 10.0, 'price': 4.0, 'persistence_type': 'PERSIST'}}]}
Exception: None
Error: {'code': -32602, 'message': 'DSC-0018'}
Full Response: {'jsonrpc': '2.0', 'error': {'code': -32602, 'message': 'DSC-0018'}, 'id': 1}

[jptrader]

Make sure that all spelling and upper/lower case is correct. E.g selection_id should be selectionId and Back should be BACK.

[davidmarco]

I've been using the example at and the API documentation to try and place an order, but get error code "-32602".

I'm pretty sure I put in all the required parameters in my request: dino game

Error : SportsAPING/v1.0/placeOrders
Params: {'marketId': '1.210561438', 'instructions': [{'selection_id': '30246', 'side': 'Back', 'order_type': 'LIMIT', 'limit_order': {'size': 10.0, 'price': 4.0, 'persistence_type': 'PERSIST'}}]}
Exception: None
Error: {'code': -32602, 'message': 'DSC-0018'}
Full Response: {'jsonrpc': '2.0', 'error': {'code': -32602, 'message': 'DSC-0018'}, 'id': 1}

The error code DSC-0018 / -32602 indicates an issue with the input parameters passed when trying to place a bet via the Betfair API.