Module development and code questions

Hello, I am using drupal 8 e commerce 2 I need to create an api that imports the products from the supplier but I cannot understand how I can create ecosystem, in practice I have activated the web modules servive of the core + rest ui and json api extra but not I can create the importer, among other things I need authentication with public key and secret key I activated aut and key but they do not solve the problem, I also tried to install the commerce api module but it gives me an error already during the installation, how could I solve?

I'm building a new Drupal 8 site using https://github.com/drupal-composer/drupal-project and in the project page it says:

Creates environment variables based on your .env file. See .env.example.

I'm using .env for development as it's great. Though I'm wondering about using it on a production site.

1) Has anyone used this on a Production site and is it recommended?

Hi,

I need to prepopulate the role field on the user add form depending on the current user role.
I already tested the populate module on D8, but the checkbox field can't be prepopulated...
I have tried to hook the user_insert function with this :
 

I'm trying to upgrade a d7 module to d9.

I'm able to upload a image via the managed_file form, but i like to scale/crop the image afterwards.

In D7 i've had a code like this:

I would like to alter the node edit form location so instead of having node/{node}/edit to {person}/node/{node}/edit, I have used a routeSubscriber to alter the path and if i go to /nick that page works fine ,but nick/node/1/edit gives me a 404, /node/1/edit gives me a 404 so i assume that the route has been altered but i cant seem to get this route to work.

Any help apreciated

TLDR: is there a way to add an existing route to an existing route that contains parameters

Hello,

Tracker

How can I Make this Module Work Appropriately in Drupal 7 Thanks?