TYPESCRIPT

upload files with angular

fileChange(element) {
  this.uploadedFiles = element.target.files;
}

upload() {
  let formData = new FormData();
  for (var i = 0; i < this.uploadedFiles.length; i++) {
    formData.append("uploads[]", this.uploadedFiles[i], this.uploadedFiles[i].name);
  }
  this.http.post('/api/upload', formData)
    .subscribe((response) => {
    console.log('response received is ', response);
  })
}

upload file angular

<input type="file" class="file-upload" (change)="functionName($event)">

file upload in angular 10 post

onFileSelected(event) {
    if(event.target.files.length > 0) 
     {
       this.myForm.patchValue({
          fileName: event.target.files[0],
       })
     }
  }

submit(){
    const formData = new FormData();
    formData.append('file', this.myForm.get('fileName').value);
   
    this.http.post('http://localhost:3000/upload', formData)
      .subscribe(res => {
        console.log(res);
        alert('Uploaded Successfully.');
      })
  }

file upload in angular 10

onFileChange(event) {
    const reader = new FileReader();

    if (event.target.files && event.target.files.length) {
      const [file] = event.target.files;
      reader.readAsDataURL(file);
      reader.onload = () => {
        this.data.parentForm.patchValue({
          tso: reader.result
        });

        // need to run CD since file load runs outside of zone
        this.cd.markForCheck();
      };
    }
  }

angular file upload

upload() {
    let formData = new FormData();
    for (var i = 0; i < this.uploadedFiles.length; i++) {
        formData.append("uploads[]", this.uploadedFiles[i], this.uploadedFiles[i].name);
    }
    this.http.post('/api/upload', formData)
    .subscribe((response) => {
         console.log('response received is ', response);
    })
}