download files with httpclient

the title of the blog post is self explanatory, but what i want to highlight here is the significance of Path.Combine, most of the time i see code where we concatenate the folder name and the filename for ex:

var path =”C:\\testfolder\\filename.txt”;

this works as expected but imagine moving the code to a linux environment ?? this small line of code will break the app completely.

Path.Combine like Environment.Newline, sets up the path based on your respective OS, for linux it would /mnt/ss/filename.txt, for windows it would be c:\ss\filename.txt

 await DownloadFile(, Path.Combine( Environment.CurrentDirectory, "filename.txt"));
  private static async Task DownloadFile(string uri, string outputPath)
            if (!Uri.TryCreate(uri, UriKind.Absolute, out _))
                throw new InvalidOperationException("URI is invalid.");

            var stream = await _httpClient.GetStreamAsync(uri);
            await using var fileStream = new FileStream(outputPath, FileMode.Create);
            await stream.CopyToAsync(fileStream);


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