Asp.Net core long running/background task

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Check also .NET Core 2.0 IHostedService. Here is the documentation. From .NET Core 2.1 we will have BackgroundService abstract class.
It can be used like this:

public class UpdateBackgroundService: BackgroundService
{
    private readonly DbContext _context;

    public UpdateTranslatesBackgroundService(DbContext context)
    {
        this._context= context;
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        await ...
    }
}

In your startup you just have to register class:

public static IServiceProvider Build(IServiceCollection services)
{
    //.....
    services.AddSingleton<IHostedService, UpdateBackgroundService>();
    services.AddTransient<IHostedService, UpdateBackgroundService>();  //For run at startup and die.
    //.....
}

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