I want to extract the bytecode from an file I select (pdf) to save it in my database. But I am always getting the error that my byte is undefined. Could someone look at my code and tell me what is wrong with it?
I tried to use the FileReader but my byte returns undefined, the formdata works fine it shows on the console every information I need for the file.
EDIT:
uploadFile2(files: FileList | null): void {
const file = files.item(0)
const reader = new FileReader()
reader.readAsDataURL(file)
reader.onload = () => {
this.documentsArray.push({documentType: this.form.controls.dokumentType.value, file: reader.result})
console.log(this.documentsArray)
}
}
Hi I edited my code and now I am getting a base64 I think, but one question, it starts like this: data:application/pdf;base64,JVBERi0xLjQKJfbk/N8KM......."
is the start with data:application/pdf correct or do I have to change something to save it in the database
I'd suggest you to store the file as a base64 String in your database. This would look as following. With the line number 2 you're fetching the file from your input event.
const reader = new FileReader();
reader.readAsDataURL(event.target.files[0]);
reader.onload = (event) => {
if (reader.result) {
//save pdf base64 into database
}