Yes, you can achieve this in TypeScript by using generic components and extracting the shared logic. While TypeScript doesn't directly support generic components, you can simulate them using interfaces, inputs, and dependency injection. Here’s how you can create a reusable app-select-item component:

1. Define a Generic Interface to outline the structure of your models and the API function.
2. Create the Generic Component SelectItemComponent to handle common functionality.
3. Use the Generic Component SelectItemComponent for both Customer and Contract models.