Converting a file into a string using Angular and TypeScript (byte by byte)

I am looking to upload a file and send it as type $byte to the endpoint using the POST method

My approach involves converting the file to base64, and then from there to byte. I couldn't find a direct way to convert it to byte, so my reasoning may be off here.

If you'd like to see the code in action, check out the StackBlitz link below: https://stackblitz.com/edit/angular-ivy-fya9mr?file=src%2Fapp%2Fapp.component.html,src%2Fapp%2Fapp.component.ts

Thank you!

Answer №1

No need for conversion.

When using the file input element's files property, the values returned are of type File, which is essentially a binary Blob. You can directly send it to the server as multipart form data like this:

saveImage(image: File): Observable<any> {
    const url = 'https://www.example.com/your-endpoint';

    const formData = new FormData();
    formData.append('image', image);

    return this.http.post<any>(url, formData);
}

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