![]() For production deployment, the security aspects should be taken into account. Razor pages, controllers and background worker delegate all actual work via interfaces, defined in BackgroundJobDemo.Common project. The concrete implementations of job management and processing are defined in the separate projects ( BackgroundJobDemo.Local, BackgroundJobDemo.Aws etc) and can be easily switched in Startup.ConfigureServices method.įor demo purposes, “Upload” page uses buffered model binding, but for large files uploading unbuffered streaming is recommended. Background worker based on ASP.NET Core hosting service (see WorkerService class).Controller (JobStatusController) providing processing status (api/status/).Progress page (razor page Progress with few JavaScript functions checking and displaying the status).Web AppĮxample web app ( BackgroundJobDemo project) includes: The web app contains a web page, where user can upload presentation, press “Export to PDF” button, then the presentation will be uploaded and converted to PDF format by a background worker. To demonstrate this approach, let’s consider the example ASP.NET Core 3.1 web application. The background worker to process the scheduled jobs.So, the typical background processing solution includes the following parts: In this case, user can see the actual status (and even leave or reload the page), the server resources can be efficiently scaled and flexibly tuned. connectivity issue), the processing just fails and we have to rerun the processing from the beginning once again.Ī better approach is to schedule the job asynchronously firstly, complete it in the background secondly and return the result of the processing lastly. When something goes wrong in the middle of a long-running task (e.g. ![]() The CPU-bound long-running tasks blocks the threads and reduce server throughput. ASP.NET Core is designed to process many requests asynchronously. We cannot ensure that processing is completed in a fixed period of time, so it means that user will see “operation timeout” sooner or later. The page freezes and user has to wait for the result. Simple file processing inside the request handler (when the client is waiting while the server is doing the job) has the following disadvantages: exporting presentation to PDF) is a typical server-side task. Distributed Implementation Based on Amazon Web Servicesįile processing (e.g.Aspose.Total Product Family Aspose.Words Product Solution Aspose.PDF Product Solution Aspose.Cells Product Solution Aspose.Email Product Solution Aspose.Slides Product Solution Aspose.Imaging Product Solution Aspose.BarCode Product Solution Aspose.Diagram Product Solution Aspose.Tasks Product Solution Aspose.OCR Product Solution Aspose.Note Product Solution Aspose.CAD Product Solution Aspose.3D Product Solution Aspose.HTML Product Solution Aspose.GIS Product Solution Aspose.ZIP Product Solution Aspose.Page Product Solution Aspose.PSD Product Solution Aspose.OMR Product Solution Aspose.PUB Product Solution Aspose.SVG Product Solution Aspose.Finance Product Solution Aspose.Drawing Product Solution Aspose.Font Product Solution Aspose.TeX Product Solution
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