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--- developers:apiv2 [2026/09/07 13:35] – chad
+++ developers:apiv2 [2026/09/07 13:43] (current) – chad
@@ Line 1: / Line 1: @@
-====== T4 WebSocket API (V2) ======
+====== Plus500 Futures Technologies WebSocket API (V2) ======
 A single, streaming WebSocket connection for real-time market data, account/position updates and order routing. Messages are encoded with [[https://protobuf.dev/|Google Protocol Buffers]].
 **Proto Files:** the ''.proto'' files define every message and field. This wiki explains the connection model and the common flows. For message field details, see the proto files and the [[developers:apiv2:reference|Message Catalog]].
-===== Message Model =====
-All messages travel inside a transport envelope, one Protobuf message per WebSocket **binary** frame:
-  * ''ClientMessage''  — everything you send to the server.
-  * ''ServerMessage''  — everything the server sends to you.
-Each envelope is a ''oneof'': exactly one payload is set. Read the ''payload'' case to know what you received.
-<code>
-message ClientMessage {
-  oneof payload {
-    Heartbeat            heartbeat          = 1;
-    auth.LoginRequest    login_request      = 2;
-    market.MarketSubscribe    market_subscribe   = 100;
-    account.AccountSubscribe  account_subscribe  = 200;
-    orderrouting.OrderSubmit  order_submit       = 300;
-    // ...
-  }
-}
-message ServerMessage {
-  oneof payload {
-    Heartbeat            heartbeat          = 1;
-    auth.LoginResponse   login_response     = 2;
-    market.MarketSnapshot     market_snapshot    = 108;
-    account.AccountSnapshot   account_snapshot   = 205;
-    orderrouting.OrderUpdate  order_update       = 300;
-    // ...
-  }
-}
-</code>
-The full envelope is in ''proto/t4/v2/service.proto''. See the [[developers:apiv2:reference|Message Catalog]] for the complete list.
 ===== Key Capabilities =====