move frontend to upper dir.

src/services/api-implementation.js

@@ -0,0 +1,21 @@
+import DjangoApi from './django-api';
+import Api from './api';
+
+class ApiImplementation {
+  constructor() {
+    const implementation = process.env.API_IMPLEMENTATION;
+    let apiImplementation;
+    if (implementation === 'django') {
+      apiImplementation = new DjangoApi();
+    } else {
+      throw new Error("API implementation don't configured");
+    }
+    this.api = new Api(apiImplementation);
+  }
+
+  getApi() {
+    return this.api;
+  }
+}
+
+export default ApiImplementation;