I think its not a good pratice to generate files that we don't need. And also these files are not getting cleared. All i want to know is that is there a way to get rid of files that are getting created on AppData floder.

Below is my code config and code shot, jsreport theam can you suggest how to clean up the appdata folder?

Packages details used.

<PropertyGroup>
<TargetFramework>netcoreapp2.0</TargetFramework>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="jsreport.Binary" Version="1.10.0" />
<PackageReference Include="jsreport.Local" Version="1.1.2" />
</ItemGroup>

AppData is getting populated with junk data. See the screen shot below.

Actual file folder location after running below code

public static async Task<Tuple<byte[], string, string>> GeneratePDF_Local(string tmplContent, string headerTmpl, string footerTmpl, string content, string fileName, string headerHeight, string footerHeight)
{
try
{
var rs = new LocalReporting()
.KillRunningJsReportProcesses()
.UseBinary(JsReportBinary.GetBinary()).AsUtility().Create();
var report = await rs.RenderAsync(new RenderRequest()
{
Template = new Template()
{
Recipe = Recipe.PhantomPdf,
Engine = Engine.Handlebars,
Content = tmplContent,
Phantom = new Phantom
{
Header = headerTmpl,
Footer = footerTmpl,
Orientation = PhantomOrientation.Portrait,
Format = PhantomFormat.A4,
BlockJavaScript = false,
HeaderHeight = headerHeight,
FooterHeight = footerHeight
}
},
Data = content
});
using (var ms = new MemoryStream())
{
await report.Content.CopyToAsync(ms);
var base64OutputFile = ms.ToArray();

                using (FileStream file = new FileStream("E:\\" + fileName + ".pdf", FileMode.Create, FileAccess.Write))
                {
                    //byte[] bytes = new byte[file.Length];
                    await file.WriteAsync(base64OutputFile, 0, base64OutputFile.Length);
                }

                await rs.KillAsync();
                return new Tuple<byte[], string, string>(base64OutputFile, fileName, FileFormats.ApplicationPdf);
            }
        }
        catch { throw; }
    }

Folder on which actual file getting saved see below sceeen

The process of creating files on AppData folder and deleting them after 3 mins or after next jsreport run, can't be bypassed?

We evaluated multiple ways how to work without temp files.
However the pest performing strategy to send html to the pdf renderer, in this case phantomjs, is using temporary files.