how can I get content from downloaded file #6536

ElifKaya created one year ago

Hi,

I want to use 'api/file-management/file-descriptor/download/{id}/token' endpoint. I can see content of this file in network response field. But, I can not get content from ajax request result. Can you give an example about this? I need to show content of file. Thank you

Check the docs before asking a question: https://docs.abp.io/en/commercial/latest/ Check the samples to see the basic tasks: https://docs.abp.io/en/commercial/latest/samples/index The exact solution to your question may have been answered before, and please first use the search on the homepage. Provide us with the following info:

ABP Framework version: v7.3.1
UI Type: Angular / MVC
Database System: EF Core (SQL Server.)
Tiered (for MVC) or Auth Server Separated (for Angular): yes/
Exception message and full stack trace:
Steps to reproduce the issue:

jfistelmann created one year ago

Hey,

do there resources help you?

https://community.abp.io/posts/file-uploaddownload-with-blob-storage-system-in-asp.net-core-abp-framework-d01cbe12

https://community.abp.io/posts/how-to-upload-and-download-files-in-the-abp-framework-using-angular-que8cdr8

kind regards Jack

IanW created one year ago

I recommend you instead do this in a normal API controller instead of an App service as you want to return a file rather than some wrapped ajax/json response - which is what the dynamic API part of ABP will do with the AppServices.

Here is an example returning and ICS file.

[HttpGet]
[AllowAnonymous]
public FileResult ICS(Guid id)
{
    var appointment = _attendanceRepo.GetAllIncluding(c => c.CalendarEvent, d => d.CalendarEvent.OwnerCalendar.Owner).First(d => d.Id == id);

    string output = $"BEGIN:VCALENDAR" + rt +
        $"VERSION:2.0" + rt +
        $"BEGIN:VEVENT" + rt +
        $"UID: calendr-" + appointment.Id + rt +
        $"DTSTART:" + string.Format("{0:yyyyMMddTHHmmssZ}", appointment.CalendarEvent.Start) + rt +
        $"DTEND:" + string.Format("{0:yyyyMMddTHHmmssZ}", appointment.CalendarEvent.End) + rt +
        $"SUMMARY:" + appointment.CalendarEvent.EventName + " with " + appointment.CalendarEvent.OwnerCalendar.Owner.FullName + rt +
        $"LOCATION:" + appointment.CalendarEvent.Location + rt +
        $"END:VEVENT" + rt +
        $"END:VCALENDAR" + rt
        ;


    HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK);
    var stream = new MemoryStream(Encoding.UTF8.GetBytes(output ?? ""));
    result.Content = new StreamContent(stream);
    return File(stream, "text/ics", fileDownloadName: appointment.CalendarEvent.EventName + ".ics");

}

ElifKaya created one year ago

Here is an example returning and ICS file.

[HttpGet] 
[AllowAnonymous] 
public FileResult ICS(Guid id) 
{ 
    var appointment = _attendanceRepo.GetAllIncluding(c => c.CalendarEvent, d => d.CalendarEvent.OwnerCalendar.Owner).First(d => d.Id == id); 
 
    string output = $"BEGIN:VCALENDAR" + rt + 
        $"VERSION:2.0" + rt + 
        $"BEGIN:VEVENT" + rt + 
        $"UID: calendr-" + appointment.Id + rt + 
        $"DTSTART:" + string.Format("{0:yyyyMMddTHHmmssZ}", appointment.CalendarEvent.Start) + rt + 
        $"DTEND:" + string.Format("{0:yyyyMMddTHHmmssZ}", appointment.CalendarEvent.End) + rt + 
        $"SUMMARY:" + appointment.CalendarEvent.EventName + " with " + appointment.CalendarEvent.OwnerCalendar.Owner.FullName + rt + 
        $"LOCATION:" + appointment.CalendarEvent.Location + rt + 
        $"END:VEVENT" + rt + 
        $"END:VCALENDAR" + rt 
        ; 
 
 
    HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK); 
    var stream = new MemoryStream(Encoding.UTF8.GetBytes(output ?? "")); 
    result.Content = new StreamContent(stream); 
    return File(stream, "text/ics", fileDownloadName: appointment.CalendarEvent.EventName + ".ics"); 
 
}

Hi, Thank you for your comment. But, we used ajax request successfully in Angular. So, I think that we should achieve this in MVC.