index.js

import { createClient } from 'contentful'

const client = createClient({
  space: config.space,
  accessToken: config.accessToken,
  host: config.host
})

export default function (config) {
  return {
    async getIssues () {
      const data = await client.getEntries({
        content_type: config.contentTypes.issues
      })
      return data.items
    },
    async getPodcasts () {
      const data = await client.getEntries({
        content_type: config.contentTypes.podcasts
      })
      return data.items
    },
    async getIssueByNumber (issueNumber) {
      const data = await client.getEntries({
        content_type: config.contentTypes.issues,
        'fields.issueNumber': issueNumber
      })
      return data.items[0]
    },
    async getAuthors () {
      const data = await client.getEntries({
        content_type: config.contentTypes.authors
      })
      return data.items
    },
    async getTags () {
      const data = await client.getEntries({
        content_type: config.contentTypes.tags
      })
      return data.items
    },
    async getStoriesByContent (query = '', tags = []) {
      let params = {
        content_type: config.contentTypes.stories,
        'query': query
      }
      if (tags.length) {
        params = {
          ...params,
          'fields.tags[exists]': true,
          'fields.tags.sys.id': tags.map(tag => tag.id).join(',')
        }
      }

      const data = await client.getEntries(params)

      return data.items
    }
  }
}