webhook.js

'use strict'

// read configured E-Com Plus app data
const getConfig = require(process.cwd() + '/lib/store-api/get-config')

const SKIP_TRIGGER_NAME = 'SkipTrigger'
const ECHO_SUCCESS = 'SUCCESS'
const ECHO_SKIP = 'SKIP'
const ECHO_API_ERROR = 'STORE_API_ERR'

module.exports = appSdk => {
  return (req, res) => {
    const { storeId } = req
    /*
    Treat E-Com Plus trigger body here
    // https://developers.e-com.plus/docs/api/#/store/triggers/
    const trigger = req.body
    */

    // get app configured options
    getConfig({ appSdk, storeId })

      .then(configObj => {
        /* Do the stuff */

        // example only
        if (configObj.ignore_trigger_x) {
          // ignore current trigger
          let err = new Error()
          err.name = SKIP_TRIGGER_NAME
          throw err
        }
        // all done
        res.send(ECHO_SUCCESS)
      })

      .catch(err => {
        if (err.name === SKIP_TRIGGER_NAME) {
          // trigger ignored by app configuration
          res.send(ECHO_SKIP)
        } else {
          // logger.error(err)
          // request to Store API with error response
          // return error status code
          res.status(500)
          let { message } = err
          res.send({
            error: ECHO_API_ERROR,
            message
          })
        }
      })
  }
}