add get iso-locales route

packages/strapi-plugin-i18n/config/routes.json

@@ -1,3 +1,12 @@
 {
-  "routes": []
+  "routes": [
+    {
+      "method": "GET",
+      "path": "/iso-locales",
+      "handler": "iso-locales.listIsoLocales",
+      "config": {
+        "policies": []
+      }
+    }
+  ]
 }

packages/strapi-plugin-i18n/constants/index.js

@@ -0,0 +1,7 @@
+'use strict';
+
+const isoLocales = require('./iso-locales');
+
+module.exports = {
+  isoLocales,
+};

packages/strapi-plugin-i18n/controllers/i18n.js

@@ -1,3 +0,0 @@
-'use strict';
-
-module.exports = {};

packages/strapi-plugin-i18n/controllers/iso-locales.js

@@ -0,0 +1,13 @@
+'use strict';
+
+const { getService } = require('../utils');
+
+const listIsoLocales = ctx => {
+  const isoLocalesService = getService('iso-locales');
+
+  ctx.body = isoLocalesService.getIsoLocales();
+};
+
+module.exports = {
+  listIsoLocales,
+};

packages/strapi-plugin-i18n/services/iso-locales.js

@@ -0,0 +1,9 @@
+'use strict';
+
+const { isoLocales } = require('../constants');
+
+const getIsoLocales = () => isoLocales;
+
+module.exports = {
+  getIsoLocales,
+};

packages/strapi-plugin-i18n/utils/index.js

@@ -0,0 +1,12 @@
+'use strict';
+
+const { prop } = require('lodash/fp');
+
+// retrieve a local service
+const getService = name => {
+  return prop(`i18n.services.${name}`, strapi.plugins);
+};
+
+module.exports = {
+  getService,
+};