# `CCXT.WS.Subscription.ReqtypeSub`
[🔗](https://github.com/ZenHive/ccxt_client/blob/main/lib/ccxt/ws/subscription/reqtype_sub.ex#L1)

BingX-style subscribe frame.

    %{"reqType" => "sub", "dataType" => "BTC-USDT@ticker", "id" => "id1"}

BingX requires **one subscribe frame per channel** — `subscribe/2`
returns a `[map()]` with one entry per channel.

Config keys:
- `:op_field` — default `"reqType"`
- `:args_field` — default `"dataType"`
- `:id_prefix` — string prefix for the correlation id (default `"id"`).
  BingX accepts string ids; keep the prefix so the frame round-trips.

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*Consult [api-reference.md](api-reference.md) for complete listing*