Package Exports

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Readme

x-types

TypeScript model types, guards, and jest schemas to use across the X project.

How to install

npm install @empathyco/x-types --save

How to use

The package export several model types that can be used to safely create objects that match the expectations of X packages.

import { RelatedTag } from '@empathyco/x-types'

const relatedTag: RelatedTag = {
  query: 'lego',
  tag: 'city',
  selected: false,
  previous: 'lego',
}

Additionally it also exposes some type guards to check between different types.

import { Filter, isHierarchicalFilter } from '@empathyco/x-types'

const filter: Filter = {
  modelName: 'HierarchicalFilter',
  id: 'color:red',
  facetId: 'color',
  label: 'red',
  selected: false,
  children: [],
}
// You can't access filter.children before the `if` because you have a `Filter`, not a `HierarchicalFilter`.

if (isHierarchicalFilter(filter)) {
  // But after using the `isHierarchicalFilter` guard, you can acces it.
  console.log('Children:', filter.children)
}

Finally, there are some jest schemas helpers that you could use to validate your objects.

import { Filter, isHierarchicalFilter } from '@empathyco/x-types'
import { HierarchicalFilterSchema } from '@empathyco/x-types/schemas'

it('is a hierarchical filter', () => {
  const filter: Filter = {
    modelName: 'HierarchicalFilter',
    id: 'color:red',
    facetId: 'color',
    label: 'red',
    selected: false,
    children: [],
  }

  expect(filter).toEqual(HierarchicalFilterSchema)
})

How to update the version

You can check if a new version has been published running npm outdated:

npm outdated @empathyco/x-types

And update it using npm update:

npm update --save @empathyco/x-types