downloading an image using dropbox API

Hi squidlauncher64,

You didn't account that 'blob' method doesn't return actual blob, but Promise object wrapping this blob! That's where all your troubles come from. Also when you try to stringify some object, you're getting object declaration (no actual data) and that's why appear so short result - "[object Object]" - i.e. one more mess. 🙂

You have to handle correct type in correct way. A simplistic example follows:

var reader = new FileReader();
await fetch(...all staff here...).then((r)=>r.blob()).then((b)=>reader.readAsDataURL(b));
var b64encoded = reader.result;
var rawBase64 = b64encoded.slice(b64encoded.search(',')+1);

Depending on what you need either full encoded result (b64encoded) can be used or only the actual/raw base64 encoded string part (rawBase64). 😉

Hope this helps.