How do I get an image URL then write it to disk?

Question

1.00/5 (1 vote)

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I have been trying to get the image from a url then writing the image to disk with no success.
Can anyone help with this?

Example URL is:
https://static.tvmaze.com/uploads/images/medium_portrait/244/610854.jpg

Current code is:

try
			{
				using var client = new HttpClient();
				var getStream = client.GetStreamAsync(webURL);
				using var fileStream = new FileStream(imagePath,FileMode.Create,FileAccess.Write);
				return true;
			}

It always writes out an empty jpg image.
However, when I execute the URL directly it shows e the image.

What I have tried:

I have tried using a retrieval as I do for Json data. But that does not work.

Posted 8-Jan-24 14:14pm

Leonard Salamacha 2023

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Dave Kreskowiak 8-Jan-24 23:57pm

Hint: You're not reading the bytes from the stream you got back, nor are you writing anything to the fileStream you created, so yeah, the file is going to be empty.

2 solutions

Solution 1

Here's how I do it:

WebClient wc = new WebClient();
outPath = Path.Combine(KnownFolders.Downloads.Path, $"{imageFileName}.{imageFileExtension}");
wc.DownloadFile(imageUrl, outPath);

Posted 8-Jan-24 19:32pm

OriginalGriff

Comments

Leonard Salamacha 2023 9-Jan-24 2:41am

I thought that we are now supposed to use webClient anymore. But to use HttpClient. Thankyou for your input. However, I am looking for a solution using HttpClient.

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Pete O'Hanlon · Accepted Answer · 2024-01-08T21:58:00

Just spitballing, but something like this should be possible.

C#

private HttpClient httpClient;
public async Task DownloadImageAndSaveAsync(string sourceFile, string outputFolder, string outputFileName)
{
  try
  {
    using Stream fileStream = await httpClient.GetStreamAsync(fileUrl);
    Directory.CreateDirectory(outputFolder);
    string path = Path.Combine(outputFolder, outputFileName);
    using FileStream outputFileStream = new FileStream(path, FileMode.CreateNew);
    await fileStream.CopyToAsync(outputFileStream);
  }
  catch (Exception ex)
  {
    // If you can do some exception handling, do it here...
  }
}