C# WebApi PDF download all working with Angular JS Authentication
Web Api Controller
[HttpGet]
[Authorize]
[Route("OpenFile/{QRFileId}")]
public HttpResponseMessage OpenFile(int QRFileId)
{
QRFileRepository _repo = new QRFileRepository();
var QRFile = _repo.GetQRFileById(QRFileId);
if (QRFile == null)
return new HttpResponseMessage(HttpStatusCode.BadRequest);
string path = ConfigurationManager.AppSettings["QRFolder"] + + QRFile.QRId + @"\" + QRFile.FileName;
if (!File.Exists(path))
return new HttpResponseMessage(HttpStatusCode.BadRequest);
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
//response.Content = new StreamContent(new FileStream(localFilePath, FileMode.Open, FileAccess.Read));
Byte[] bytes = File.ReadAllBytes(path);
//String file = Convert.ToBase64String(bytes);
response.Content = new ByteArrayContent(bytes);
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
response.Content.Headers.ContentDisposition.FileName = QRFile.FileName;
return response;
}
Angular JS Service
this.getPDF = function (apiUrl) {
var headers = {};
headers.Authorization = 'Bearer ' + sessionStorage.tokenKey;
var deferred = $q.defer();
$http.get(
hostApiUrl + apiUrl,
{
responseType: 'arraybuffer',
headers: headers
})
.success(function (result, status, headers) {
deferred.resolve(result);;
})
.error(function (data, status) {
console.log("Request failed with status: " + status);
});
return deferred.promise;
}
this.getPDF2 = function (apiUrl) {
var promise = $http({
method: 'GET',
url: hostApiUrl + apiUrl,
headers: { 'Authorization': 'Bearer ' + sessionStorage.tokenKey },
responseType: 'arraybuffer'
});
promise.success(function (data) {
return data;
}).error(function (data, status) {
console.log("Request failed with status: " + status);
});
return promise;
}
Either one will do
Angular JS Controller calling the service
vm.open3 = function () {
var downloadedData = crudService.getPDF('ClientQRDetails/openfile/29');
downloadedData.then(function (result) {
var file = new Blob([result], { type: 'application/pdf;base64' });
var fileURL = window.URL.createObjectURL(file);
var seconds = new Date().getTime() / 1000;
var fileName = "cert" + parseInt(seconds) + ".pdf";
var a = document.createElement("a");
document.body.appendChild(a);
a.style = "display: none";
a.href = fileURL;
a.download = fileName;
a.click();
});
};
And last the HTML page
<a class="btn btn-primary" ng-click="vm.open3()">FILE Http with crud service (3 getPDF)</a>
This will be refactored just sharing the code now hope it helps someone as it took me a while to get this working.