I have a set of URLs stored in a MongoDB collection, and you want to replace the base URL of these URLs while preserving the rest of the path and query string. The URLs you want to replace are:

https://url1/uploads/…
https://url2/uploads/…
https://url2/uploads/…
You want these URLs to be converted to:

https://urlForAmazonaws/…
the urlForAmazonaws URL where the images or resources are now hosted.

 input: "$image",
    as: "item",
    in: {
      $replaceOne: {
        input: "$$item.path",
        find: "^https://(url1|url2|url3)/uploads/",
        replacement: "https://urlForAmazonaws/"
      }
    }

I handled the URL replacement like this and expected the final result to be https://urlForAmazonaws/. However, I was surprised that this did not happen. The final result ended up being one of the three original URLs, as nothing changed.