angularjsHow do I upload a file using AngularJS?
Uploading a file using AngularJS can be done using a combination of the $http
and FormData
services.
Below is an example of how to upload a file using AngularJS:
// Create a new FormData object
var fd = new FormData();
// Take the selected file from the input and append it to the FormData object
fd.append("file", fileInputElement.files[0]);
// Make an AJAX (http request) call to the server
$http.post("/upload", fd, {
withCredentials: true,
headers: {'Content-Type': undefined },
transformRequest: angular.identity
})
.success(function(data) {
// Handle success
})
.error(function(data) {
// Handle error
});
This code will take the file from the fileInputElement
and send it to the server using an AJAX call. The FormData
object is used to store the file and the $http
service is used to make the request. The withCredentials
and transformRequest
options are used to ensure that the file is sent correctly.
Code explanation
-
var fd = new FormData();
: This line creates a newFormData
object which will be used to store the file. -
fd.append("file", fileInputElement.files[0]);
: This line takes the file from thefileInputElement
and appends it to theFormData
object. -
$http.post("/upload", fd, {...})
: This line makes an AJAX call to the server, sending theFormData
object. -
withCredentials: true
: This option is used to ensure that the file is sent correctly. -
headers: {'Content-Type': undefined }
: This option is used to ensure that the file is sent correctly. -
transformRequest: angular.identity
: This option is used to ensure that the file is sent correctly.
Helpful links
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