How to convert a URL image to BLOB in Mysql? - mysql

Question

My problem is to convert a URL like http://example.org/image.png which is in a varchar column, to another column as blob, to store the image in this very same table, using only mysql.
My main goal is to store this image in my table, because this URL may expire and the image may not be available anymore.
So, not only convert the content of the column A VARCHAR but get the image, convert it to BLOB ans store it in the BLOB column...
is it possible? HOW??

Answer 1

On my understanding you can do this:
const fs = require("fs");
// Reads file in form buffer =>
var image_url='http://example.org/image.png';
const buffer = fs.readFileSync("path-to-image.jpg");
At this stage write your buffer (string) to your database. Then sometime later you can load your string and pass it to this function and store the image locally.
var buffer = 'fetch your string from your database';
fs.writeFileSync("new-path.jpg", buffer);
If you can point the code to a "local" url it should be able to do the same thing. (your last comment/question)
Full discolosure I have never worked with Node. But I cannot see a reason why you would really want to store this in your DB, and not just download it locally?