A web api for download file in Zipped

still error showing

Use client.GetByteArrayAsync(fileUrl)

using (HttpClient client = new HttpClient())
{
    foreach (DataRow row in DtImage.Rows)
    {
        string fileUrl = row["FileUrl"].ToString();
        string fileName = Path.GetFileName(fileUrl);

        byte[] fileBytes = client.GetByteArrayAsync(fileUrl);
        zip.AddEntry(fileName, fileBytes);
    }
}

Error showing

foreach (DataRow row in DtImage.Rows)
{
    filePath = row["FileName"].ToString();
    string localPath = new Uri(filePath).LocalPath;
    zip.AddFile(filePath, "Files");
}

Change the above code with below code and try again:

using (HttpClient client = new HttpClient())
{
    foreach (DataRow row in DtImage.Rows)
    {
        string fileUrl = row["FileUrl"].ToString();
        string fileName = Path.GetFileName(fileUrl);

        byte[] fileBytes = client.GetByteArrayAsync(fileUrl);
        zip.AddEntry(fileName, fileBytes);
    }
}

Please i dont't want in mvc

I want Normal aso.net web api

Pls go through my code

 [Authorize]
        [HttpPost]
        public HttpResponseMessage DownloadImage(JObject jsonParam)
        {
            HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK);
            try
            {
                UserIdentity UI = new UserIdentity((ClaimsIdentity)User.Identity);
                var RoleId = Convert.ToInt32(UI.RoleId);
                var UserID = Convert.ToInt32(UI.UserID);
                PmsInsertUpdateData _KD = new PmsInsertUpdateData();
                // var CD_Dtls = _KD.GetPmsUploadedImage(jsonParam);
                DataTable DtImage = _KD.DownloadImage(jsonParam);
                string filePath = string.Empty;

                using (ZipFile zip = new ZipFile())
                {
                    zip.AlternateEncodingUsage = ZipOption.AsNecessary;
                    zip.AddDirectoryByName("Files");
                    foreach (DataRow row in DtImage.Rows)
                    {
                        filePath = row["FileName"].ToString();
                        string localPath = new Uri(filePath).LocalPath;
                        zip.AddFile(filePath, "Files");
                    }

                    //Set the Name of Zip File.
                    string zipName = String.Format("Zip_{0}.zip", DateTime.Now.ToString("yyyy-MMM-dd-HHmmss"));
                    using (MemoryStream memoryStream = new MemoryStream())
                    {
                        //Save the Zip File to MemoryStream.
                        zip.Save(memoryStream);
                        //Set the Response Content.
                        response.Content = new ByteArrayContent(memoryStream.ToArray());
                        //Set the Response Content Length.
                        response.Content.Headers.ContentLength = memoryStream.ToArray().LongLength;

                        //Set the Content Disposition Header Value and FileName.
                        response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
                        response.Content.Headers.ContentDisposition.FileName = zipName;

                        //Set the File Content Type.
                        response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/zip");

                        return response;

                    }
                }
            }
            catch (Exception ex)
            {
                response = Request.CreateResponse(JsonConvert.DeserializeObject("{\"StatusCode\":\"500\",\"ErrorMessage\":\"" + ex.Message + "\"}"));
                return response;
            }
            // = Request.CreateResponse(HttpStatusCode.OK, response);
        }

Error :showing

{

    "StatusCode": "500",

    "ErrorMessage": "URI formats are not supported."

}

Actually I want to retreive file from live url

l like :-http://148.72.207.115:4458/BBGS_Unit3_BD_GEN_2021-2022_sample_001.png

 

Pls Go through my code .i don't want in mvc ,i want normal web api

Check this

[Authorize]
[HttpPost]
public IActionResult DownloadImage(JObject jsonParam)
{
    try
    {
        UserIdentity UI = new UserIdentity((ClaimsIdentity)User.Identity);
        var RoleId = Convert.ToInt32(UI.RoleId);
        var UserID = Convert.ToInt32(UI.UserID);
        PmsInsertUpdateData _KD = new PmsInsertUpdateData();
        DataTable DtImage = _KD.DownloadImage(jsonParam);
        string filePath = string.Empty;

        using (ZipFile zip = new ZipFile())
        {
            zip.AlternateEncodingUsage = ZipOption.AsNecessary;
            zip.AddDirectoryByName("Files");

            foreach (DataRow row in DtImage.Rows)
            {
                filePath = row["FileName"].ToString();
                string localPath = new Uri(filePath).LocalPath;
                zip.AddFile(filePath, "Files");
            }

            // Set the Name of the ZIP File.
            string zipName = String.Format("Zip_{0}.zip", DateTime.Now.ToString("yyyy-MMM-dd-HHmmss"));

            using (MemoryStream memoryStream = new MemoryStream())
            {
                zip.Save(memoryStream);
                return File(memoryStream.ToArray(), "application/zip", zipName);
            }
        }
    }
    catch (Exception ex)
    {
        return BadRequest(ex.Message);
    }
}

I don;t need in mvc

It is working for local path but i want to fetch file from Url

My Url Is like :-http://148.72.207.115:4458/BBGS_Unit3_BD_GEN_2021-2022_sample_001.png

My Code is like

  [Authorize]
        [HttpGet]
        public HttpResponseMessage DownloadImage(Int Id)
        {
            HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK);
            try
            {
                UserIdentity UI = new UserIdentity((ClaimsIdentity)User.Identity);
                var RoleId = Convert.ToInt32(UI.RoleId);
                var UserID = Convert.ToInt32(UI.UserID);
                PmsInsertUpdateData _KD = new PmsInsertUpdateData();
                // var CD_Dtls = _KD.GetPmsUploadedImage(Id);
                DataTable DtImage = _KD.DownloadImage(jsonParam);
                string filePath = string.Empty;

                using (ZipFile zip = new ZipFile())
                {
                    zip.AlternateEncodingUsage = ZipOption.AsNecessary;
                    zip.AddDirectoryByName("Files");
                    foreach (DataRow row in DtImage.Rows)
                    {
                        filePath = row["FileName"].ToString();
                        string localPath = new Uri(filePath).LocalPath;
                        zip.AddFile(filePath, "Files");
                    }

                    //Set the Name of Zip File.
                    string zipName = String.Format("Zip_{0}.zip", DateTime.Now.ToString("yyyy-MMM-dd-HHmmss"));
                    using (MemoryStream memoryStream = new MemoryStream())
                    {
                        //Save the Zip File to MemoryStream.
                        zip.Save(memoryStream);
                        //Set the Response Content.
                        response.Content = new ByteArrayContent(memoryStream.ToArray());
                        //Set the Response Content Length.
                        response.Content.Headers.ContentLength = memoryStream.ToArray().LongLength;

                        //Set the Content Disposition Header Value and FileName.
                        response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
                        response.Content.Headers.ContentDisposition.FileName = zipName;

                        //Set the File Content Type.
                        response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/zip");

                        return response;

                    }
                }
            }
            catch (Exception ex)
            {
                response = Request.CreateResponse(JsonConvert.DeserializeObject("{\"StatusCode\":\"500\",\"ErrorMessage\":\"" + ex.Message + "\"}"));
                return response;
            }
            // = Request.CreateResponse(HttpStatusCode.OK, response);
        }

Try this

[HttpGet("{filename}")]
public async Task DownloadFile(string filename)
{
    // Replace "path/to/files" with the actual path to your files
    string filePath = Path.Combine("path/to/files", filename);

    if (!System.IO.File.Exists(filePath))
    {
        return NotFound();
    }

    // Generate a unique file name for the zip file
    string zipFileName = $"{Path.GetFileNameWithoutExtension(filename)}_{DateTime.Now:yyyyMMddHHmmss}.zip";
    string zipFilePath = Path.Combine(Path.GetTempPath(), zipFileName);

    // Create a new zip archive
    using (var zipArchive = ZipFile.Open(zipFilePath, ZipArchiveMode.Create))
    {
        // Add the file to the zip archive
        zipArchive.CreateEntryFromFile(filePath, Path.GetFileName(filePath));
    }

    // Read the zip file into a byte array
    byte[] zipBytes = await System.IO.File.ReadAllBytesAsync(zipFilePath);

    // Clean up the temporary zip file
    System.IO.File.Delete(zipFilePath);

    // Set the Content-Disposition header to prompt the user to download the file
    var contentDisposition = new System.Net.Mime.ContentDisposition
    {
        FileName = zipFileName,
        Inline = false // Set this to true if you want the browser to attempt to display the file inline
    };
    Response.Headers.Add("Content-Disposition", contentDisposition.ToString());

    // Return the zip file as a byte array
    return File(zipBytes, "application/zip");
}

it is working https://www.aspsnippets.com/Articles/Download-Compressed-Zip-File-from-Web-API-in-ASPNet-MVC.aspx

but when i want to download from url it is not working pls guide

how can i download multiple file from url in Zip File

My Url Is like :-http://148.72.207.115:4458/BBGS_Unit3_BD_GEN_2021-2022_sample_001.png

Hi Sandeep,

Do refer below links

https://www.aspsnippets.com/Articles/Download-Compressed-Zip-File-from-Web-API-in-ASPNet-MVC.aspx

https://stackoverflow.com/questions/41383338/how-to-download-a-zipfile-from-a-dotnet-core-webapi