ctrip-apollo-ex/src/url.js

The most delightful and handy Node.js client for ctrip apollo configuration service

const {stringify} = require('querystring')

const isPlainObject = o => Object.keys(o).length === 0

const createQuery = options => {
  const query = Object.keys(options).reduce((ret, key) => {
    const v = options[key]
    if (v !== undefined && v !== null) {
      ret[key] = v
    }

    return ret
  }, {})

  if (isPlainObject(query)) {
    return ''
  }

  return `?${stringify(query)}`
}

// Ref
// https://github.com/ctripcorp/apollo/wiki/%E5%85%B6%E5%AE%83%E8%AF%AD%E8%A8%80%E5%AE%A2%E6%88%B7%E7%AB%AF%E6%8E%A5%E5%85%A5%E6%8C%87%E5%8D%97

// API url without cache
const queryConfig = ({
  // host
  host: h,
  // appId
  appId: a,
  // cluster
  cluster: c,
  // namespace
  namespace: n,
  // releaseKey: optional
  releaseKey,
  // ip: optional
  ip,
  // dataCenter: optional
  dataCenter,
  // messages: optional
  // messages: m

}) => `${h}/configs/${a}/${c}/${n}${
  createQuery({
    releaseKey,
    ip,
    dataCenter,
    // messages: m
  })
}`

// API url with cache
const queryConfigAsJson = ({
  host: h,
  appId: a,
  cluster: c,
  namespace: n,
  // ip: optional
  ip,
  // dataCenter: optional
  dataCenter
}) => `${h}/configfiles/json/${a}/${c}/${n}${
  createQuery({
    ip,
    dataCenter
  })
}`

const queryUpdate = ({
  host,
  appId,
  cluster,
  notifications: n
}) => `${host}/notifications/v2${
  createQuery({
    appId,
    cluster,
    notifications: JSON.stringify(n)
  })
}`

module.exports = {
  queryConfigAsJson,
  queryConfig,
  queryUpdate
}