Creating a file stream for a HTTP file

Question

I need to create a file stream directly at a server location using an URL. Something like

fs = new FileStream("http://SiteName.in/abc/xyz/pqr.pdf", FileMode.Create);

but its giving me this exception:

URI formats are not supported

I tried it with many other options but not providing satisfactory result.

I think they want to upload a file to a server, given the FileMode.Create — Dasanko, Feb 27 '15 at 10:30
possible duplicate of [URL Formats are not supported](http://stackoverflow.com/questions/17918433/url-formats-are-not-supported) — stefankmitph, Feb 27 '15 at 10:31
i need to create and write directly at specified location. when we work with fs = new FileStream("c:\\pqr.pdf", FileMode.Create) it works but doesn't work by providing URL m serching correct way to do so.. — Vrishali, Feb 27 '15 at 10:36

score 3 · Answer 1 · answered Feb 27 '15 at 10:30

3

You can't create a file stream of a HTTP request. That is not how the class and the web works.

Use WebClient.OpenWrite or the direct WebClient.UploadString instead:

WebClient wc = new WebClient();
using (Stream s = wc.OpenWrite("url"))
{
    ...
}

Of course, your server should support the POST request though. You can also use the more manual HttpWebRequest class.

answered Feb 27 '15 at 10:30

Patrick Hofman

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You can use request|response streams. – H H Feb 27 '15 at 10:31
@HenkHolterman: Indeed. Or `OpenWrite`, which might be better than `UploadString` if you need a `Stream` for performance reasons. – Patrick Hofman Feb 27 '15 at 10:32

score 1 · Answer 2 · answered Feb 15 '20 at 20:01

You can simply download your file into Stream

public static Stream DownloadFile(string TargetFile)
{
    WebClient MyWebClient = new WebClient();
    byte[] BytesFile = MyWebClient.DownloadData(TargetFile);

    MemoryStream iStream = new MemoryStream(BytesFile);

    return iStream;
}

Creating a file stream for a HTTP file

2 Answers2