index.js

/**
 * Functions for query data from NHentai API
 * @param {int} id Gallery ID
 */
const getRawData = async id => {
  try {
    // Using reverse proxy server to avoid CORS issue
    const out = await axios.get(`https://nh-express-git-master.rayriffy.now.sh/api/gallery/${id}`)
    return {
      status: 'success',
      data: {
        id: id,
        raw: out.data,
      },
    }
  } catch (err) {
    console.log(`cannot process ${id} with code ${err.code}`)
    return {
      status: 'failure',
      data: {
        id: id,
      },
    }
  }
}

const queue = new TaskQueue(Promise, MAX_SIMULTANEOUS_DOWNLOADS)
const res = {}
res.tags = result.data.allTagJson
res.data = await Promise.all(
  result.data.allDataJson.edges.map(queue.wrap(async edge => await getRawData(edge.node.nh_id))),
)

return res