How to Independently task execution in c#

Here's an outline of how you can approach this:

Asynchronous Programming: Modify both methods to use async and await. This allows you to perform asynchronous operations without blocking the main thread.
Task-based Parallelism: Use the Task class to run the two methods concurrently. You can use Task.Run to execute each method in its own separate task.
Cancellation Token: Implement a cancellation mechanism to stop the execution of a task if needed.

Here's an example code snippet to illustrate the concept:

using System;
using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;

public class Program
{
    // HttpClient instance for API calls
    private static readonly HttpClient httpClient = new HttpClient();

    public static async Task Main()
    {
        // Create a cancellation token source
        var cancellationTokenSource = new CancellationTokenSource();

        // Run the methods asynchronously in separate tasks
        Task firstTask = CallApiMethodAsync(cancellationTokenSource.Token);
        Task secondTask = DoSomeOperationsAsync(cancellationTokenSource.Token);

        // Wait for both tasks to complete
        await Task.WhenAll(firstTask, secondTask);
    }

    private static async Task CallApiMethodAsync(CancellationToken cancellationToken)
    {
        try
        {
            // Perform API call here using httpClient.GetAsync or similar method
            // Example:
            // HttpResponseMessage response = await httpClient.GetAsync("https://api.example.com/data", cancellationToken);
            
            // Process the API response here
            // Example:
            // string responseData = await response.Content.ReadAsStringAsync();

            // Handle API response data accordingly
            // ...

            // If needed, handle cancellation by checking cancellationToken.IsCancellationRequested
        }
        catch (OperationCanceledException)
        {
            // Handle the case when the task is cancelled
        }
    }

    private static async Task DoSomeOperationsAsync(CancellationToken cancellationToken)
    {
        try
        {
            // Perform some operations here
            // Example:
            // await Task.Delay(TimeSpan.FromSeconds(30), cancellationToken); // Simulate a time-consuming operation

            // If needed, handle cancellation by checking cancellationToken.IsCancellationRequested
        }
        catch (OperationCanceledException)
        {
            // Handle the case when the task is cancelled
        }
    }
}