This generates a whole bunch of files that you can think of to work with an entity. To run the command, type:

ng generate entity product

The following files are generated:

• product.actions.ts
• product.model.ts
• product.reducer.ts
• product.reducer.spec.ts

It's worth mentioning that the product.reducer.ts file not only generates the full reducer function but also creates and initializes the EntityAdapter. That's a lot of boilerplate that you don't have to write. You also get all the actions and all selectors—a truly powerful command.