VS code API: How to get thread id on which debugger is paused in multithread program

I am currently building a VS code extension to visualize C# variables and datatables. And I have successfully achieved this in single threaded application by calling these in sequence:

1. Thread request
2. StackTrace request
3. Scope request
4. Variable request via DAP(Debug Adapter Protocol).

• But I am currently facing issues in multi threaded C# application, As it returns multiple threads and I can't figure which thread id I should pass in stack trace request. Here is my code to get threads and other request.
• Can I get active thread id on which breakpoint is paused? or do I have to check for all threads? and How?

This is what i have done for single threaded C# application in javascript.

// Get Active Debug Session
const session = vscode.debug.activeDebugSession;

// Get Thread
const threadResponse = await session.customRequest('threads');
const threadId = threadResponse.threads[0].id;

// Get StackFrame
const stackResponse = await session.customRequest('stackTrace', { threadId: threadId, startFrame: 0 });
const frameId = stackResponse.stackFrames[0].id;

// Get Scope
const scopeResponse = await session.customRequest('scopes', { frameId: frameId });
const variableReference = scopeResponse.scopes[0].variablesReference;

// Get Variable
const variableResponse = await session.customRequest('variables', { variablesReference: variableReference });
const variables = variableResponse.variables;

You can check this out: https://code.visualstudio.com/updates/v1_90#_debug-stack-focus-api.

The new activeStackItem interface can directly return the currently focused thread or stack frame:

const activeStackItem = vscode.debug.activeStackItem;
let frameId = undefined
if (activeStackItem instanceof vscode.DebugStackFrame) {
    frameId = activeStackItem.frameId;
}