61 lines
2.0 KiB
JavaScript
61 lines
2.0 KiB
JavaScript
const axios = require('axios')
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const Logger = require('../Logger')
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class GoogleBooks {
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constructor() { }
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extractIsbn(industryIdentifiers) {
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if (!industryIdentifiers || !industryIdentifiers.length) return null
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var isbnObj = industryIdentifiers.find(i => i.type === 'ISBN_13') || industryIdentifiers.find(i => i.type === 'ISBN_10')
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if (isbnObj && isbnObj.identifier) return isbnObj.identifier
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return null
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}
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cleanResult(item) {
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var { id, volumeInfo } = item
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if (!volumeInfo) return null
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const { title, subtitle, authors, publisher, publisherDate, description, industryIdentifiers, categories, imageLinks } = volumeInfo
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let cover = null
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// Selects the largest cover assuming the largest is the last key in the object
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if (imageLinks && Object.keys(imageLinks).length) {
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cover = imageLinks[Object.keys(imageLinks).pop()]
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cover = cover?.replace(/^http:/, 'https:') || null
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}
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return {
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id,
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title,
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subtitle: subtitle || null,
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author: authors ? authors.join(', ') : null,
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publisher,
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publishedYear: publisherDate ? publisherDate.split('-')[0] : null,
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description,
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cover,
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genres: categories && Array.isArray(categories) ? [...categories] : null,
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isbn: this.extractIsbn(industryIdentifiers)
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}
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}
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async search(title, author) {
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title = encodeURIComponent(title)
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var queryString = `q=intitle:${title}`
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if (author) {
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author = encodeURIComponent(author)
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queryString += `+inauthor:${author}`
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}
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var url = `https://www.googleapis.com/books/v1/volumes?${queryString}`
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Logger.debug(`[GoogleBooks] Search url: ${url}`)
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var items = await axios.get(url).then((res) => {
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if (!res || !res.data || !res.data.items) return []
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return res.data.items
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}).catch(error => {
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Logger.error('[GoogleBooks] Volume search error', error)
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return []
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})
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return items.map(item => this.cleanResult(item))
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}
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}
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module.exports = GoogleBooks |