NodeJS source (view on github)

const subscriptions = require('../../../../../index.js')

module.exports = {
  get: async (req) => {
    if (!req.query || !req.query.accountid) {
      throw new Error('invalid-accountid')
    }
    const account = await global.api.user.Account.get(req)
    if (!account) {
      throw new Error('invalid-account')
    }
    const where = {
      accountid: req.query.accountid,
      appid: req.appid || global.appid
    }
    let customerids
    if (req.query.all) {
      customerids = await subscriptions.Storage.Customer.findAll({
        where,
        attributes: ['customerid'],
        order: [
          ['createdAt', 'DESC']
        ]
      })
    } else {
      const offset = req.query.offset ? parseInt(req.query.offset, 10) : 0
      const limit = req.query.limit ? parseInt(req.query.limit, 10) : global.pageSize
      customerids = await subscriptions.Storage.Customer.findAll({
        where,
        attributes: ['customerid'],
        offset,
        limit,
        order: [
          ['createdAt', 'DESC']
        ]
      })
    }
    if (!customerids || !customerids.length) {
      return null
    }
    const items = []
    for (const customerInfo of customerids) {
      req.query.customerid = customerInfo.dataValues.customerid
      const customer = await global.api.user.subscriptions.Customer.get(req)
      items.push(customer)
    }
    return items
  }
}

Test source (view on github)

/* eslint-env mocha */
const assert = require('assert')
const TestHelper = require('../../../../../test-helper.js')
const DashboardTestHelper = require('@layeredapps/dashboard/test-helper.js')

describe('/api/user/subscriptions/customers', function () {
  before(TestHelper.disableMetrics)
  after(TestHelper.enableMetrics)
  let cachedResponses, cachedCustomers
  async function bundledData (retryNumber) {
    if (retryNumber > 0) {
      cachedResponses = {}
    }
    if (cachedResponses && cachedResponses.finished) {
      return
    }
    cachedResponses = {}
    cachedCustomers = []
    await TestHelper.setupBefore()
    await DashboardTestHelper.setupBeforeEach()
    await TestHelper.setupBeforeEach()
    const administrator = await TestHelper.createOwner()
    await TestHelper.createProduct(administrator, {
      active: 'true'
    })
    const user = await TestHelper.createUser()
    for (let i = 0, len = global.pageSize + 2; i < len; i++) {
      await TestHelper.createCustomer(user, {
        email: user.profile.contactEmail
      })
      cachedCustomers.unshift(user.customer.customerid)
    }
    const req1 = TestHelper.createRequest(`/api/user/subscriptions/customers?accountid=${user.account.accountid}&offset=1`)
    req1.account = user.account
    req1.session = user.session
    cachedResponses.offset = await req1.get()
    const req2 = TestHelper.createRequest(`/api/user/subscriptions/customers?accountid=${user.account.accountid}&limit=1`)
    req2.account = user.account
    req2.session = user.session
    cachedResponses.limit = await req2.get()
    const req3 = TestHelper.createRequest(`/api/user/subscriptions/customers?accountid=${user.account.accountid}&all=true`)
    req3.account = user.account
    req3.session = user.session
    cachedResponses.all = await req3.get()
    const req4 = TestHelper.createRequest(`/api/user/subscriptions/customers?accountid=${user.account.accountid}`)
    req4.account = user.account
    req4.session = user.session
    req4.filename = __filename
    req4.saveResponse = true
    cachedResponses.returns = await req4.get()
    global.pageSize = 3
    cachedResponses.pageSize = await req4.get()
    global.pageSize = 2
    cachedResponses.finished = true
  }
  describe('exceptions', () => {
    describe('invalid-accountid', () => {
      it('missing querystring accountid', async () => {
        const user = await TestHelper.createUser()
        const req = TestHelper.createRequest('/api/user/subscriptions/customers')
        req.account = user.account
        req.session = user.session
        let errorMessage
        try {
          await req.get()
        } catch (error) {
          errorMessage = error.message
        }
        assert.strictEqual(errorMessage, 'invalid-accountid')
      })

      it('invalid querystring accountid', async () => {
        const user = await TestHelper.createUser()
        const req = TestHelper.createRequest('/api/user/subscriptions/customers?accountid=invalid')
        req.account = user.account
        req.session = user.session
        let errorMessage
        try {
          await req.get()
        } catch (error) {
          errorMessage = error.message
        }
        assert.strictEqual(errorMessage, 'invalid-accountid')
      })
    })

    describe('invalid-account', () => {
      it('ineligible accessing account', async function () {
        await bundledData(this.test.currentRetry())
        const user = await TestHelper.createUser()
        const user2 = await TestHelper.createUser()
        const req = TestHelper.createRequest(`/api/user/subscriptions/customers?accountid=${user.account.accountid}`)
        req.account = user2.account
        req.session = user2.session
        let errorMessage
        try {
          await req.get()
        } catch (error) {
          errorMessage = error.message
        }
        assert.strictEqual(errorMessage, 'invalid-account')
      })
    })
  })

  describe('receives', () => {
    it('optional querystring offset (integer)', async function () {
      await bundledData(this.test.currentRetry())
      const offset = 1
      const customersNow = cachedResponses.offset
      for (let i = 0, len = global.pageSize; i < len; i++) {
        assert.strictEqual(customersNow[i].customerid, cachedCustomers[offset + i])
      }
    })

    it('optional querystring limit (integer)', async function () {
      await bundledData(this.test.currentRetry())
      const limit = 1
      const customersNow = cachedResponses.limit
      assert.strictEqual(customersNow.length, limit)
    })

    it('optional querystring all (boolean)', async () => {
      const customersNow = await cachedResponses.all
      assert.strictEqual(customersNow.length, cachedCustomers.length)
    })
  })

  describe('returns', () => {
    it('array', async () => {
      const customers = cachedResponses.returns
      assert.strictEqual(customers.length, global.pageSize)
    })
  })

  describe('configuration', () => {
    it('environment PAGE_SIZE', async () => {
      const customers = cachedResponses.pageSize
      assert.strictEqual(customers.length, global.pageSize + 1)
    })
  })
})