I'm trying to use the Websocket api with C# .net examples, but the host in the example is Localhost. Do you provide a websocket server for market data requests? If so, what is the URL?
The WebSocket API can connect to Refinitiv Real-Time Distribution System (on-premise in your environment) and Refinitiv Real-Time - Optimized (Cloud).
If you already have Refinitiv Real-Time Distribution System (aka TREP, ADS server) in your environment, please contact your Market Data team to help you.
If you want to connect to Refinitiv Real-Time - Optimized on the Cloud (or you want to have Refinitiv Real-Time Distribution System in your environment), I suggest you contact your Refinitiv representative or Account manager.
Once you have Refinitiv Real-Time Distribution System information or Refinitiv Real-Time - Optimized access, the following tutorials will give you more detail about the connection:
Refer to the RDP .Net examples within GitHub: https://github.com/Refinitiv/websocket-api/tree/master/Applications/Examples/RDP/CSharp. These examples will help you understand where the endpoint URL is acquired and how to connect.