Upload image url

As far as I know there is no update in bulk / updateMany yet according to this

I am still researching for createMany

The admin panel login for strapi is

// Login admin (POST http://localhost:1337/admin/login)
fetch("http://localhost:1337/admin/login", {
      "method": "POST",
      "headers": {
            "Content-Type": "application/json; charset=utf-8"
      },
      "body": "{\"email\":\"admin@example.com\",\"password\":\"pass\"}"
})
.then((res) => res.text())
.then(console.log.bind(console))
.catch(console.error.bind(console));

I assume you know the regular login method

169.254.37.16:1337/auth/local

Maybe later on I will try to re-visit the link you posted and think of idea how to use the plugin to upload many images. @4levels