I've the following code that returns an image in C# Web API. So far so good but I can't map it to an image.
[HttpPost]
[Route("GetImage")]
[ValidateAntiForgeryToken]
public FileResult GetImage(string name)
{
if (string.IsNullOrEmpty(name)) {
return File("imgs/nodisponible.jpg", "image/jpg");
}
var imagen = REST.GetImage(name);
return new FileContentResult(imagen, "image/jpeg");
}
So on the javascript side I made:
getimage(word: any): Observable<any> {
return this.http.post<ArrayBuffer>(this.baseUrl 'library/getimage', word, {
headers: this.headers,
withCredentials: true,
});
}
and then to show the image:
const iname = JSON.stringify(this.consultadetalle?.cover_url);
this.dataService.getimage(iname).subscribe((responses) => {
$('#imagencover').attr('src', "data:image/png;base64," responses);
});
but the console says:
Http failure during parsing for https://localhost:44476/library/getimage"
How can I solve this?
Update: As I said, I'm using Web API, I don't have the view in C#, only javascript with angular. In C# I've only the controllers.
CodePudding user response:
You may need to convert the file to bytes first. I successfully used this, in a project similar to yours, to convert the image file to a byte array.
public static byte[] ConverToBytes(HttpPostedFileBase file)
{
var length = file.InputStream.Length; //Length: 103050706
byte[] fileData = null;
using (var binaryReader = new BinaryReader(file.InputStream))
{
fileData = binaryReader.Renter code hereeadBytes(file.ContentLength);
}
return fileData;
}
after which I loaded that information into a Viewbag and converted that to Base64
var ImageBytes = ConverToBytes(ImageFromApi);
var displayImage= "data:" imagePulled.FileType ";base64," Convert.ToBase64String(ImageBytes);
ViewBag.FileBytes = displayImage;
then displayed it in a view using this.
<object data="@ViewBag.FileBytes" id="imageDisplayFrame" style="width:100%; min-height:600px; border:1px solid lightgrey; object-fit:contain;" #zoom="200" frameBorder="1" type="@ViewBag.FileType" />