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schema-dts
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JSON-LD TypeScript types for Schema.org vocabulary.
schema-dts provides TypeScript definitions for Schema.org vocabulary in JSON-LD format. The typings are exposed as complete sets of discriminated type unions, allowing for easy completions and stricter validation.
Note: This is not an officially supported Google product.
To use the typings for your project, simply add the schema-dts
NPM package to
your project:
npm install schema-dts
Then you can use it by importing "schema-dts"
.
import {Person} from 'schema-dts';
const inventor: Person = {
'@type': 'Person',
name: 'Grace Hopper',
disambiguatingDescription: 'American computer scientist',
birthDate: '1906-12-09',
deathDate: '1992-01-01',
awards: [
'Presidential Medal of Freedom',
'National Medal of Technology and Innovation',
'IEEE Emanuel R. Piore Award',
],
};
JSON-LD requires a "@context"
property to be set on the top-level JSON object,
to describe the URIs represeting the types and properties being referenced.
schema-dts provides the WithContext<T>
type to facilitate this.
import {Organization, Thing, WithContext} from 'schema-dts';
export function JsonLd<T extends Thing>(json: WithContext<T>): string {
return `<script type="application/ld+json">
${JSON.stringify(json)}
</script>`;
}
export const MY_ORG = JsonLd<Organization>({
'@context': 'https://schema.org',
'@type': 'Corporation',
name: 'Google LLC',
});
JSON-LD supports '@graph'
objects that have richer interconnected links
between the nodes. You can do that easily in schema-dts
by using the Graph
type.
Notice that any node can have an @id
when defining it. And you can reference
the same node from different places by simply using an ID stub, for example
{ '@id': 'https://my.site/about/#page }
below is an ID stub.
The example below shows potential JSON-LD for an About page. It includes
definitions of Alyssa P. Hacker (the author & subject of the page), the specific
page in this URL, and the website it belongs to. Some objects are still defined
as inline nested objects (e.g. Occupation), since they are only referenced by
their parent. Other objects are defined at the top-level with an @id
, because
multiple nodes refer to them.
import {Graph} from 'schema-dts';
const graph: Graph = {
'@context': 'https://schema.org',
'@graph': [
{
'@type': 'Person',
'@id': 'https://my.site/#alyssa',
name: 'Alyssa P. Hacker',
hasOccupation: {
'@type': 'Occupation',
name: 'LISP Hacker',
qualifications: 'Knows LISP',
},
mainEntityOfPage: {'@id': 'https://my.site/about/#page'},
subjectOf: {'@id': 'https://my.site/about/#page'},
},
{
'@type': 'AboutPage',
'@id': 'https://my.site/#site',
url: 'https://my.site',
name: "Alyssa P. Hacker's Website",
inLanguage: 'en-US',
description: 'The personal website of LISP legend Alyssa P. Hacker',
mainEntity: {'@id': 'https://my.site/#alyssa'},
},
{
'@type': 'WebPage',
'@id': 'https://my.site/about/#page',
url: 'https://my.site/about/',
name: "About | Alyssa P. Hacker's Website",
inLanguage: 'en-US',
isPartOf: {
'@id': 'https://my.site/#site',
},
about: {'@id': 'https://my.site/#alyssa'},
mainEntity: {'@id': 'https://my.site/#alyssa'},
},
],
};
FAQs
A TypeScript package with latest Schema.org Schema Typings
The npm package schema-dts receives a total of 305,797 weekly downloads. As such, schema-dts popularity was classified as popular.
We found that schema-dts demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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