I've this WebAPI method, that takes a custom object MyType
as input and generate a PDF based on that. The PDF-file is returned as a HttpResponseMessage
. Note that I specify the filename on response.Content.Headers.ContentDisposition.FileName
:
ASP.NET WebAPI
[Route("")]
public HttpResponseMessage Get([FromUri]MyType input)
{
var pdfContent = PdfGenerator.Generate(input);
var response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content = pdfContent;
response.Content.Headers.ContentDisposition = new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment");
response.Content.Headers.ContentDisposition.FileName = "MyCustomFileName.pdf"
return response;
}
In AngularJS I fetch the file using FileSaver.js like this:
$http.get("api/pdf/", {
params: {
"type": myObject
},
responseType: 'arraybuffer'
}).then(function (results) {
var data = results.data;
var file = new Blob([data], { type: 'application/pdf' });
saveAs(file, 'filename.pdf');
}, function (results) {
console.log(results);
});
It works as excepted, but I'm defining the filename both on WebAPI and in the JavaScript. Is there a way, that I can retrieve the FileName defined in WebAPI in the results
variable in JavaScript?
The promise returned by methods of $http
are passed as argument an object with the following properties (ref):
- data – {string|Object} – The response body transformed with the transform functions.
- status – {number} – HTTP status code of the response.
- headers – {function([headerName])} – Header getter function.
- config – {Object} – The configuration object that was used to generate the request.
- statusText – {string} – HTTP status text of the response.
So results.headers('Content-Disposition')
will gives you the value of the Content-Disposition
header. You will have to do some trivial parsing to get to the actual filename.
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