File Upload with Angular2 to REST API

Question

Actually, I\'m working on a Spring REST API with an interface coded in Angular 2.

My problem is I can\'t upload a file with Angular 2.

My Webresources in jav

Answer 1

This has worked for me:

onChange(event: any) {
    let fileList: FileList = event.target.files;
if(fileList.length > 0) {
    let file: File = fileList[0];
    let formData:FormData = new FormData();
    formData.append('degree_attachment', file, file.name);
    let headers = new Headers();
    headers.append('Accept', 'application/json');
    let options = new RequestOptions({ headers: headers });
    this.http.post('http://url', formData,options)
        .map(res => res.json())
        .catch(error => Observable.throw(error))
        .subscribe(
            data => console.log('success'),
            error => console.log(error)
        )
}}