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* Coherent.js Structured Data
*
* Generate JSON-LD structured data for SEO
*
* @module seo/structured-data
*/
/**
* Structured Data Builder
* Creates JSON-LD structured data
*/
export class StructuredDataBuilder {
constructor() {
this.schemas = [];
}
/**
* Add schema
*/
add(schema) {
this.schemas.push(schema);
return this;
}
/**
* Create Organization schema
*/
organization(data) {
return this.add({
'@context': 'https://schema.org',
'@type': 'Organization',
name: data.name,
url: data.url,
logo: data.logo,
description: data.description,
contactPoint: data.contactPoint,
sameAs: data.socialLinks
});
}
/**
* Create WebSite schema
*/
website(data) {
return this.add({
'@context': 'https://schema.org',
'@type': 'WebSite',
name: data.name,
url: data.url,
description: data.description,
potentialAction: data.searchAction ? {
'@type': 'SearchAction',
target: data.searchAction.target,
'query-input': data.searchAction.queryInput || 'required name=search_term_string'
} : undefined
});
}
/**
* Create Article schema
*/
article(data) {
return this.add({
'@context': 'https://schema.org',
'@type': 'Article',
headline: data.headline,
description: data.description,
image: data.image,
author: data.author ? {
'@type': 'Person',
name: data.author.name,
url: data.author.url
} : undefined,
publisher: data.publisher ? {
'@type': 'Organization',
name: data.publisher.name,
logo: data.publisher.logo ? {
'@type': 'ImageObject',
url: data.publisher.logo
} : undefined
} : undefined,
datePublished: data.datePublished,
dateModified: data.dateModified
});
}
/**
* Create Product schema
*/
product(data) {
return this.add({
'@context': 'https://schema.org',
'@type': 'Product',
name: data.name,
description: data.description,
image: data.image,
brand: data.brand ? {
'@type': 'Brand',
name: data.brand
} : undefined,
offers: data.offers ? {
'@type': 'Offer',
price: data.offers.price,
priceCurrency: data.offers.currency || 'USD',
availability: data.offers.availability || 'https://schema.org/InStock',
url: data.offers.url
} : undefined,
aggregateRating: data.rating ? {
'@type': 'AggregateRating',
ratingValue: data.rating.value,
reviewCount: data.rating.count
} : undefined
});
}
/**
* Create BreadcrumbList schema
*/
breadcrumb(items) {
return this.add({
'@context': 'https://schema.org',
'@type': 'BreadcrumbList',
itemListElement: items.map((item, index) => ({
'@type': 'ListItem',
position: index + 1,
name: item.name,
item: item.url
}))
});
}
/**
* Create FAQ schema
*/
faq(questions) {
return this.add({
'@context': 'https://schema.org',
'@type': 'FAQPage',
mainEntity: questions.map(q => ({
'@type': 'Question',
name: q.question,
acceptedAnswer: {
'@type': 'Answer',
text: q.answer
}
}))
});
}
/**
* Create Person schema
*/
person(data) {
return this.add({
'@context': 'https://schema.org',
'@type': 'Person',
name: data.name,
url: data.url,
image: data.image,
jobTitle: data.jobTitle,
worksFor: data.organization ? {
'@type': 'Organization',
name: data.organization
} : undefined,
sameAs: data.socialLinks
});
}
/**
* Build JSON-LD script tag
*/
build() {
if (this.schemas.length === 0) {
return null;
}
const data = this.schemas.length === 1 ? this.schemas[0] : this.schemas;
return {
script: {
type: 'application/ld+json',
text: JSON.stringify(data, null, 2)
}
};
}
/**
* Build as JSON string
*/
toJSON() {
const data = this.schemas.length === 1 ? this.schemas[0] : this.schemas;
return JSON.stringify(data, null, 2);
}
/**
* Clear all schemas
*/
clear() {
this.schemas = [];
return this;
}
}
/**
* Create a structured data builder
*/
export function createStructuredData() {
return new StructuredDataBuilder();
}
/**
* Quick structured data generation
*/
export function generateStructuredData(type, data) {
const builder = new StructuredDataBuilder();
switch (type) {
case 'organization':
builder.organization(data);
break;
case 'website':
builder.website(data);
break;
case 'article':
builder.article(data);
break;
case 'product':
builder.product(data);
break;
case 'breadcrumb':
builder.breadcrumb(data);
break;
case 'faq':
builder.faq(data);
break;
case 'person':
builder.person(data);
break;
default:
builder.add(data);
}
return builder.build();
}
export default {
StructuredDataBuilder,
createStructuredData,
generateStructuredData
};
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