Allows to define getters that depends of another properties

[soullivaneuh]

I have a modeling like this:

hosting: {
  id: primaryKey(idNumberIncr()),
  name: faker.internet.domainName,
  slug: faker.lorem.slug,
  server: oneOf('server'),
},

On the production API, the slug property has a generated value that depends to the name property.

However, I have no way to reproduce that with the fake data factory, as I don't have the information on the getter, so I have to generate a random one.

Ideally, the simplest implementation way would be this:

hosting: {
  id: primaryKey(idNumberIncr()),
  name: faker.internet.domainName,
  slug: (item) => item.name.whatEverStringTransformation(),
  server: oneOf('server'),
},

Or maybe a way to define a custom function to process the given data on each .create and .update call.

What do you think?

[kettanaito]

There is no way to do that in v1.

In v2, you can derive a value from another value by using a new derivative() API:

import { id, factory, derivative } from '@mswjs/data'

factory({
  user: {
    id: id(String),
    age: Number,
    isAdult: derivative(({ age }) => age >= 18),
  }
})