![]() ![]() There were many limitations or details which I needed to be aware of before making my decision on choosing the right PDF generation library for azure and. This happened to me again when my old open source pdf library was working nice on windows pc and windows server, and all of sudden i assumed that in azure also it would work without any problem. Which means time wasted, production deadlines crossed, and additional component cost to client. You may decide to rewrite code with another library, or suggest an option to buy a paid component for pdf generation. And then you do not control or manage the hosting for clients. Then you realize that the open source component which you used is not compatible or has other dependencies which needs to be made available on the server. I know you have been on such an adventure when all code works perfectly in your Windows PC and it doesn’t work in Staging or Live server. But a problem comes into picture for a typical developer’s life on the day of release i.e deployment. net core using paid and free both types of components. There are many ways to generate pdf using. Nowadays Azure based cloud hosting is the only alternative left for all Microsoft technology lovers to build their scalable applications in the cloud with least effort. I'm sure there are many benefits in creating dynamic PDF documents for any ecommerce website out there.Earlier when there was no cloud era, we were hosting all sites on mostly dedicated or virtual private servers. This can be used for many examples, such as creating a website order receipt, creating terms for insurance purchased or sending out a quote. This now allows us to create dynamic PDF documents for our ASP.NET Core web application. Return File(pdfBytes, "application/pdf") Using (var streamWriter = new (pdfBytes, 0, pdfBytes.Length) Var pdf = htmlToPdf.ConvertHtmlString(stringWriter.ToString()) Var htmlToPdf = new HtmlToPdf(1000, 1414) Var viewDictionary = new ViewDataDictionary(new EmptyModelMetadataProvider(), new ModelStateDictionary()) Īwait (viewContext) Throw new ArgumentNullException($"'Views/Pdf/_Invoice.cshtml' does not match any available view") Var viewResult = _compositeViewEngine.FindView(ControllerContext, "_Invoice", false) Using (var stringWriter = new StringWriter()) Just like with rendering a website, we can render the PDF into the HTTP response, or we can save the PDF to file storage. Then, we can call the ConvertHtmlString method and pass in the HTML as the parameter. From there, we can convert our StreamWriter instance into a string, and that will give us the HTML of our invoice.Īfter that, we create a new instance of HtmlToPdf. We then write this ViewContext instance into our StreamWriter instance. ![]() This is what happens normally when rendering a view in MVC. To do that, we call the FindView method from the ICompositeViewEngine instance.Īssuming it exists, we need to create a new ViewContext instance. Next, we will check that the view actually exists. This instance will allow us to write the PDF file from the view. _compositeViewEngine = compositeViewEngine įrom there, we can start writing the method to turn our invoice into a PDF document.įirst, we create a new instance of StreamWriter. Public PdfController(ICompositeViewEngine compositeViewEngine) Protected readonly ICompositeViewEngine _compositeViewEngine ![]()
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