Using the ng2-file-upload plugin to upload a file using a file object
0
I am using the ng2-file-upload in an Angular 4.x project - I am trying to pass a base64 string that can be used to pass this file directly into the FileUploader class - I cannot be sure if this is even possible looking at the documentation currently?
https://github.com/valor-software/ng2-file-upload
public onPhotoEditBase64(base64, position): void {
let file = this.dataURLtoFile(base64, 'cchq-export');
console.log('fileObj', file); // outputs File object in console
// unsure how to pass the `file` variable into the ng2-fileupload in the existing array to replace the existing image based on the `position` parameter
}
/**
* convert image base64 uri to file object
* @param string dataurl
* @param string filename
* @returns {File}
*/
public dataURLtoFile(dataurl, filename) {
var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
while(n--){
u8arr[n] = bstr.charCodeAt(n);
}
// fix for Internet Explorer
if (window.navigator && window.navigator.msSaveOrOpenBlob) { // IE workaround
let blob = <any>{};
blob = new Blob([u8arr], { type:mime });
blob.lastModifiedDate = new Date();
blob.name = filename;
return blob;
} else {
return new File([u8arr], filename, {type:mime});
}
}
javascript angular promise base64 filereader
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
add a comment |
0
I am using the ng2-file-upload in an Angular 4.x project - I am trying to pass a base64 string that can be used to pass this file directly into the FileUploader class - I cannot be sure if this is even possible looking at the documentation currently?
https://github.com/valor-software/ng2-file-upload
public onPhotoEditBase64(base64, position): void {
let file = this.dataURLtoFile(base64, 'cchq-export');
console.log('fileObj', file); // outputs File object in console
// unsure how to pass the `file` variable into the ng2-fileupload in the existing array to replace the existing image based on the `position` parameter
}
/**
* convert image base64 uri to file object
* @param string dataurl
* @param string filename
* @returns {File}
*/
public dataURLtoFile(dataurl, filename) {
var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
while(n--){
u8arr[n] = bstr.charCodeAt(n);
}
// fix for Internet Explorer
if (window.navigator && window.navigator.msSaveOrOpenBlob) { // IE workaround
let blob = <any>{};
blob = new Blob([u8arr], { type:mime });
blob.lastModifiedDate = new Date();
blob.name = filename;
return blob;
} else {
return new File([u8arr], filename, {type:mime});
}
}
javascript angular promise base64 filereader
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
add a comment |
0
0
0
I am using the ng2-file-upload in an Angular 4.x project - I am trying to pass a base64 string that can be used to pass this file directly into the FileUploader class - I cannot be sure if this is even possible looking at the documentation currently?
https://github.com/valor-software/ng2-file-upload
public onPhotoEditBase64(base64, position): void {
let file = this.dataURLtoFile(base64, 'cchq-export');
console.log('fileObj', file); // outputs File object in console
// unsure how to pass the `file` variable into the ng2-fileupload in the existing array to replace the existing image based on the `position` parameter
}
/**
* convert image base64 uri to file object
* @param string dataurl
* @param string filename
* @returns {File}
*/
public dataURLtoFile(dataurl, filename) {
var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
while(n--){
u8arr[n] = bstr.charCodeAt(n);
}
// fix for Internet Explorer
if (window.navigator && window.navigator.msSaveOrOpenBlob) { // IE workaround
let blob = <any>{};
blob = new Blob([u8arr], { type:mime });
blob.lastModifiedDate = new Date();
blob.name = filename;
return blob;
} else {
return new File([u8arr], filename, {type:mime});
}
}
javascript angular promise base64 filereader
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
I am using the ng2-file-upload in an Angular 4.x project - I am trying to pass a base64 string that can be used to pass this file directly into the FileUploader class - I cannot be sure if this is even possible looking at the documentation currently?
https://github.com/valor-software/ng2-file-upload
public onPhotoEditBase64(base64, position): void {
let file = this.dataURLtoFile(base64, 'cchq-export');
console.log('fileObj', file); // outputs File object in console
// unsure how to pass the `file` variable into the ng2-fileupload in the existing array to replace the existing image based on the `position` parameter
}
/**
* convert image base64 uri to file object
* @param string dataurl
* @param string filename
* @returns {File}
*/
public dataURLtoFile(dataurl, filename) {
var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
while(n--){
u8arr[n] = bstr.charCodeAt(n);
}
// fix for Internet Explorer
if (window.navigator && window.navigator.msSaveOrOpenBlob) { // IE workaround
let blob = <any>{};
blob = new Blob([u8arr], { type:mime });
blob.lastModifiedDate = new Date();
blob.name = filename;
return blob;
} else {
return new File([u8arr], filename, {type:mime});
}
}
javascript angular promise base64 filereader
javascript angular promise base64 filereader
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
asked Nov 19 '18 at 13:59
ZabsZabs
5,51138127219
5,51138127219
add a comment |
add a comment |
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