user-util.js

'use strict'

const jwt = require('jsonwebtoken')
const { rword } = require('rword')
const { createUser, deleteUser } = require('./cognito-util')

const stage = process.env.SLIC_STAGE || 'local'

let userPromise

async function createActualUser() {
  if (stage === 'local') {
    const userId = rword.generate(3).join('-')
    const email = `${userId}@example.com`
    // SLIC backend with serverless-offline will derive the
    // user context by JWT-decoding the Authorization header
    return {
      idToken: jwt.sign({ 'cognito:username': userId, email }, 'dummy-key'),
      email,
      userId
    }
  } else {
    return createUser()
  }
}

function getUser() {
  if (!userPromise) {
    userPromise = createActualUser()
  }
  return userPromise
}

async function removeUser() {
  const user = await getUser()
  if (stage !== 'local') {
    await deleteUser(user)
    userPromise = null
  }
}

module.exports = {
  getUser,
  removeUser
}