Init

server/providers/OpenLibrary.js

@@ -0,0 +1,72 @@
+var axios = require('axios')
+
+class OpenLibrary {
+  constructor() {
+    this.baseUrl = 'https://openlibrary.org'
+  }
+
+  get(uri) {
+    return axios.get(`${this.baseUrl}/${uri}`).then((res) => {
+      return res.data
+    }).catch((error) => {
+      console.error('Failed', error)
+      return false
+    })
+  }
+
+  async isbnLookup(isbn) {
+    var lookupData = await this.get(`/isbn/${isbn}`)
+    if (!lookupData) {
+      return {
+        errorCode: 404
+      }
+    }
+    return lookupData
+  }
+
+  async getWorksData(worksKey) {
+    var worksData = await this.get(`${worksKey}.json`)
+    if (!worksData.covers) worksData.covers = []
+    var coverImages = worksData.covers.filter(c => c > 0).map(c => `https://covers.openlibrary.org/b/id/${c}-L.jpg`)
+    var description = null
+    if (worksData.description) {
+      if (typeof worksData.description === 'string') {
+        description = worksData.description
+      } else {
+        description = worksData.description.value || null
+      }
+    }
+    return {
+      id: worksKey.split('/').pop(),
+      key: worksKey,
+      covers: coverImages,
+      first_publish_date: worksData.first_publish_date,
+      description: description
+    }
+  }
+
+  async cleanSearchDoc(doc) {
+    var worksData = await this.getWorksData(doc.key)
+    return {
+      title: doc.title,
+      author: doc.author_name ? doc.author_name.join(', ') : null,
+      first_publish_year: doc.first_publish_year,
+      edition: doc.cover_edition_key,
+      cover: doc.cover_edition_key ? `https://covers.openlibrary.org/b/OLID/${doc.cover_edition_key}-L.jpg` : null,
+      ...worksData
+    }
+  }
+
+  async search(query) {
+    var queryString = Object.keys(query).map(key => key + '=' + query[key]).join('&')
+    var lookupData = await this.get(`/search.json?${queryString}`)
+    if (!lookupData) {
+      return {
+        errorCode: 404
+      }
+    }
+    var searchDocs = await Promise.all(lookupData.docs.map(d => this.cleanSearchDoc(d)))
+    return searchDocs
+  }
+}
+module.exports = OpenLibrary