How do I monitor the progress of my scraping tasks in IronWebScraper?

IronWebScraper is a C# library designed to make web scraping in .NET straightforward and efficient. Unfortunately, it does not natively support Python, JavaScript, or other languages as it is a .NET-specific tool.

However, monitoring the progress of scraping tasks in IronWebScraper can be handled by utilizing its built-in events and logging capabilities. Here are some ways you can monitor your scraping tasks:

Using Events

IronWebScraper has several events that you can subscribe to for monitoring progress:

  • OnStart – Fired when the scraper starts.
  • OnStatus – Fired when there is a status update.
  • OnProgress – Fired to inform about the progress of the scrape.
  • OnComplete – Fired when the scraping process is complete.

To subscribe to these events, you would typically write event handlers in your C# code. Here is an example of how you can monitor progress using the OnProgress event:

using IronWebScraper;

public class MyScraper : WebScraper
{
    public override void Init()
    {
        this.LoggingLevel = WebScraper.LogLevel.All;
        this.Request("http://example.com", Parse);
    }

    public override void Parse(Response response)
    {
        // Your parsing logic here
    }

    public static void Main()
    {
        var scraper = new MyScraper();
        scraper.OnProgress += Scraper_OnProgress;
        scraper.OnComplete += Scraper_OnComplete;
        scraper.Start();
    }

    private static void Scraper_OnProgress(object sender, ProgressEventArgs e)
    {
        Console.WriteLine($"Thread: {e.ThreadId}, Url: {e.Request.Url}, Progress: {e.ProgressPercentage}%");
    }

    private static void Scraper_OnComplete(object sender, EventArgs e)
    {
        Console.WriteLine("Scraping complete!");
    }
}

In the above example, Scraper_OnProgress is the event handler for the OnProgress event. It logs the current progress to the console.

Using Logging

IronWebScraper also supports detailed logging, which can be extremely helpful for monitoring progress, especially for long-running or complex scraping tasks. You can set the logging level to LogLevel.All to get the most detailed output, or you can choose other levels depending on your needs.

Logs can be written to the console, a file, or even a custom logging provider. Here's an example of how to enable logging:

public class MyScraper : WebScraper
{
    public override void Init()
    {
        this.LoggingLevel = WebScraper.LogLevel.All;
        this.LogToFile("log.txt", LogLevel.All);
        this.Request("http://example.com", Parse);
    }

    // Rest of the scraper implementation...
}

In this example, LogToFile is used to write logs to a file named log.txt.

Console Commands

IronWebScraper does not involve console commands for progress monitoring since it is a library that runs within your .NET application.

Summary

To monitor the progress of scraping tasks in IronWebScraper, you should use the events provided by the library, such as OnProgress, and consider setting up detailed logging to keep track of the scraper's actions. The examples provided are written in C# since IronWebScraper is a .NET library and does not have built-in compatibility with Python, JavaScript, or other languages.

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