feat: avoid to use geolocation api

package.json

@@ -40,12 +40,14 @@
     "compression": "~1.7.4",
     "cors": "~2.8.5",
     "cosmiconfig": "~7.0.0",
+    "country-vat": "~1.0.0",
     "emittery": "~0.8.1",
     "express": "~4.17.1",
     "got": "~11.8.2",
     "helmet": "~4.4.1",
     "import-modules": "~2.1.0",
     "is-buffer": "~2.0.5",
+    "is-european": "~1.0.3",
     "jsendp": "~2.1.0",
     "lodash": "~4.17.21",
     "mailgen": "~2.0.14",
@@ -59,6 +61,7 @@
     "p-retry": "~4.4.0",
     "p-waterfall": "~2.1.1",
     "pretty-ms": "~7.0.1",
+    "req-country": "~1.0.0",
     "request-ip": "~2.1.3",
     "stripe": "^8.137.0",
     "time-span": "~4.0.0",

src/get-metadata.js

@@ -1,43 +1,8 @@
 'use strict'
 
-const { get, pickBy } = require('lodash')
-const got = require('got')
+const reqCountry = require('req-country')
 
-module.exports = async ipAddress => {
-  if (!ipAddress) return
-
-  try {
-    const { body } = await got(
-      `https://api.ipgeolocationapi.com/geolocate/${ipAddress}`,
-      {
-        responseType: 'json'
-      }
-    )
-
-    return pickBy({
-      ipAddress,
-      continent: get(body, 'continent'),
-      region: get(body, 'region'),
-      subregion: get(body, 'subregion'),
-      worldRegion: get(body, 'world_region'),
-      unLocode: get(body, 'un_locode'),
-      alpha2: get(body, 'alpha2'),
-      alpha3: get(body, 'alpha3'),
-      countryCode: get(body, 'country_code'),
-      internationalPrefix: get(body, 'international_prefix'),
-      ioc: get(body, 'ioc'),
-      gec: get(body, 'gec'),
-      country: get(body, 'name'),
-      vatRate: get(body, 'vat_rates.standard'),
-      currencyCode: get(body, 'currency_code'),
-      latitude: get(body, 'geo.latitude'),
-      longitude: get(body, 'geo.longitude'),
-      euMember: get(body, 'eu_member'),
-      eeaMember: get(body, 'eea_member')
-    })
-  } catch (err) {
-    return {
-      ipAddress
-    }
-  }
+module.exports = async ({ ipAddress, headers }) => {
+  const country = reqCountry({ ipAddress, headers })
+  return { ipAddress, country }
 }

src/get-tax-rate.js

@@ -1,34 +1,29 @@
 'use strict'
 
-const { get, noop } = require('lodash')
-const got = require('got')
+const { eeaMember, getCountry } = require('is-european')
+const countryVat = require('country-vat')
+const { noop } = require('lodash')
 
 const MAX_TAX_RATES_LIMIT = 100
-const CACHE = new Map()
 
-const getCountryTaxRate = async countryCode =>
-  got(`https://api.ipgeolocationapi.com/countries/${countryCode}`, {
-    cache: CACHE,
-    responseType: 'json',
-    resolveBodyOnly: true
+const getCountryTaxRate = country => countryVat(country) * 100
+
+const createTaxRateFactory = stripe => ({ name, alpha2, percentage }) =>
+  stripe.taxRates.create({
+    display_name: 'VAT',
+    description: `VAT ${name}`,
+    jurisdiction: alpha2,
+    percentage,
+    inclusive: true
   })
 
 const vatmoss = ({ config, stripe, getCountryTaxRate }) => {
-  const createTaxRate = countryTaxRate =>
-    stripe.taxRates.create({
-      display_name: 'VAT',
-      description: `VAT ${countryTaxRate.name}`,
-      jurisdiction: countryTaxRate.alpha2,
-      percentage: get(countryTaxRate, 'vat_rates.standard'),
-      inclusive: true
-    })
-
-  const { company } = config
+  const createTaxRate = createTaxRateFactory(stripe)
 
-  return async (customerMeta = {}) => {
-    if (!customerMeta.eeaMember) return
+  return async ({ country } = {}) => {
+    if (!eeaMember(country)) return
 
-    const companyTaxRate = await getCountryTaxRate(company.country)
+    const companyCountry = getCountry(config.company.country)
 
     const { data: taxRates } = await stripe.taxRates.list({
       limit: MAX_TAX_RATES_LIMIT
@@ -38,18 +33,23 @@ const vatmoss = ({ config, stripe, getCountryTaxRate }) => {
       taxRate =>
         taxRate.inclusive &&
         taxRate.display_name === 'VAT' &&
-        taxRate.jurisdiction === companyTaxRate.alpha2
+        taxRate.jurisdiction === companyCountry.alpha2
     )
 
-    return taxRate || createTaxRate(companyTaxRate)
+    return (
+      taxRate ||
+      createTaxRate({
+        ...companyCountry,
+        percentage: getCountryTaxRate(config.company.country)
+      })
+    )
   }
 }
 
 const strategies = { vatmoss }
 
 module.exports = ({ config, stripe }) => {
   const { tax_type: taxType } = config.company
-
   if (taxType === undefined) return noop
 
   const createStrategy = strategies[taxType]