Utils to access couchDB using nano

couch-db-utils-nano

import Promise from 'bluebird'
import nano from 'nano'
import {log} from './utils'

const dbService = 1//nano(process.env.DB_SERVICE_URL)

export const getDbService = () => {
  Promise.promisifyAll(dbService.db)
  return Promise.promisifyAll(dbService)
}

export const getDb = (dbName) => {
  return Promise.promisifyAll(dbService.db.use(dbName))
}

export const save = (db, doc) => {
  return db.insert(doc).then((res) => {
    return res
  }).catch((err) => {
     log('Error while saving the doc', err)
  })
}

export const bulkSave = (db, docs) => {
  // TODO 
  return db.bulk(docs, [params]).then((res) =>{
    return res
  }).catch((err) => {
     log('Error while saving the docs', err)
  })
}

export const getView = (db, designName, viewName, params = null) => {
  return db.view(designName, viewName, (params || { include_docs: true }))
    .then((resultSet) => {
      return resultSet.map((row) => {
        return row
      }).filter((row) => {
        return row !== null
      })
    })
}

const using = (dbName) => {
  return {
    save: (doc) => {
       return getDb(dbName).then((db) =>{
           return save(db, doc)
       })
    }
  }
}

const CouchDbService = getDbService()
export default CouchDbService