System Price Format

T4 publishes prices in two formats: Decimal (default) and Real. The setting controls only decimal placement on all prices, including chart data and API responses.

All price fields in API and REST responses

Streaming market data and historical/chart data

var loginRequest = new T4Proto.V1.Auth.LoginRequest {
Firm = demoConfig.Firm,
Username = demoConfig.UserName,
Password = demoConfig.Password,
AppName = demoConfig.AppName,
AppLicense = demoConfig.AppLicense,
PriceFormat = T4Proto.V1.Common.PriceFormat.Real
};

Option 1 — Use bearer token from Streaming API\ If you authenticate via Streaming and reuse that bearer token, the price format is already set. No additional REST setup is required.

Option 2 — /login endpoint\ Specify priceFormat in the request body:

{
"firm": "CTSDev",
"userName": "user",
"password": "*****",
"appName": "TradeBook",
"appLicense": "F18CC97E-42D1-478A-8CE9-0A850B5C47A7",
"priceFormat": "Real"
}

• Price format must be chosen at login and cannot be changed until you re-authenticate.
• Both API and REST support the same options (Real / Decimal).