Trying to run methods after api starts up

Question

So I've written an api on ASP.Net-Core and I want to run some csvReader methods as soon as the server starts. Currently it just starts up and doesn't run my DataMigrationController.

class Program
{
    public const string _path =
        "C://path";

    static void Main(string[] args)
    {
        
        CreateWebHostBuilder(args)
            .UseUrls("https://localhost:44301/")
            .Build()
            .Run();

        DataMigrationController DMC = new DataMigrationController();
        DMC.readCSV(_path);
        Console.WriteLine("Done");
    }

    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
        WebHost.CreateDefaultBuilder(args)
            .UseStartup();
}

user_1790644 · Answer

From the docs, it appears as if the Run() method is blocking; you would want to use Start() instead.

user_3793141 · Answer

You can do this with hangfire.

You can set a job that will be performed only once after starting the app. See Fire-and-forget jobs in hangfire documentation.

Just be careful not to add too many job clone to the queue. You can easily avoid this by using the WorkerCount option. For more info look: https://docs.hangfire.io/en/latest/background-processing/configuring-degree-of-parallelism.html

Trying to run methods after api starts up

2 Answers