How do I build a pdf file/blob from byte[] via a AJAX / REST call RRS feed

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  • User-1949942929 posted
    Question: I have WebMethod as illustrated below that should return a byte[]. The byte[] then needs to be retrieved by AJAX call and display the pdf file.
    [WebMethod] public static byte[] GeneratePDF() {     var pdfPath = Path.Combine(System.Web.Hosting.HostingEnvironment.MapPath("~/PDFTemplates/W9.pdf"));     PdfReader pdfReader = new PdfReader(pdfPath);     MemoryStream stream = new MemoryStream();     PdfStamper stamper = new PdfStamper(pdfReader, stream);     pdfReader.Close();     stamper.Close();     stream.Flush();     stream.Close();          byte[] bytes = System.IO.File.ReadAllBytes(pdfPath);          return bytes;             }
    Note: for AJAX call, I have following AngularJS code
    function GeneratePDF() { $http.post('/Default.aspx/GeneratePDF', '', { responseType: 'arraybuffer' }).then(function (response) { var blob = new Blob([new Uint8Array(response.data)], { type: 'application/pdf' }); $scope.url = (window.URL || window.webkitURL).createObjectURL(blob); window.open($scope.url); }); }
    And html anchor below for downloading pdf file
    Tuesday, March 1, 2016 8:51 PM


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