Allow Customers to Creating Custom Products

[aule3810]

I am needing to create an app that allows customers to create their own products based on a dozen or so sliders that changes the cost and allows the customer to name the product. I know how to create a product through the REST API, but I am unfamiliar with how to create a native app that would do this client side. My current thought is to have a button that triggers a webhook to my app that creates the product with GraphQL and then adds it to the customers cart. However, I am unclear how to get a webhook to trigger from a button press client side. I am fairly new to Shopify custom apps, but would love some direction on where to start with this project!