Hello @pradeep.badoni

The appID (ApplciationID), together with the Position helps the upstream infrastructure to identify the client connection. It is the ID of the consumer application that is connected to.

You can change it from the range '257' to '65535' based on your preference. Range '1' to '256' is reserved by Refinitiv. You can find more detail about the WebSocket specification in Refinitiv WebSocket API – API Specifications document.

@pradeep.badoni

There are some description of the OAuth2 parameters required by the API on the following tutorial

https://developers.refinitiv.com/en/api-catalog/refinitiv-data-platform/refinitiv-data-platform-apis/tutorials#authorization-all-about-tokens

For #1 about the scope, the app can request the top-level scope trapi to get us a token containing all the scopes we are entitled to.

For #2 about the hotstandby, it's the example app feature, not the API. It uses to specifies the hot-standby mechanism to create two connections and subscribe identical items for service resiliency. If required, you can use your own implementation to implement the feature as well.

You can find the hotstandby implementation in example source codes.

For #3 about the region, it's the name of the AWS region, and basically, the example will retrieve it from the RDP discovery service.

https://api.refinitiv.com/streaming/pricing/v1/

You can find the available list on the API docs page.

https://apidocs.refinitiv.com/

As far as I understand, the Provider server's default service is ELEKTRON_DD, and 256 is the default app id. I don't think currently general user can change it.

Hello @pradeep.badoni

Additionally, you can find more detail regarding the RDP Auth and Service discovery services in Refinitiv Real-Time - Optimized Install and Config Guide document (download page).

The RDP APIs Getting Started Guide document is also helpful.