Alternative of signalr with callback

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Mobile

SignalR

Xamarin

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we are going to make an application should sends data from mobile application (xamarin-forms) to get data from console application (that will be installed on local "client" machine) using webapi hosted on (middle server), i was thinking in SignalR to make the mobile application and console application as tow users with their IDs, but SignalR doesn't callback with data or objects in the same session between mobile app and console application, is there any solution to do this ?

What I have tried:

use webapi hosted on (middle server), and use SignalR to make the mobile application and console application as tow users connected to webapi with their IDs