MossOnTheTree

If anyone is still having this problem, the answer is to use the POST method on your httpClient obj (whatever you're using) and set a header value. ("_method": "DELETE") It needs to be POST because you're adding a request body, which isn't supposed to work with the DELETE verb. So a request will look like this: Method: POST POST body: { "dealId": "<deal id>", "direction": "SELL", "size": "1", "orderType": "MARKET", } All the rest could be null Headers: X-IG-API-KEY: <your api key> X-SECURITY-TOKEN: <your token from logging in> CST: <your cst token from logging in> Content-Type: application/json Version: 1 _method: DELETE Hope this helps