refactor: apply linter to the code

get_user_vehicles.js

@@ -0,0 +1,71 @@
+const aws = require('aws-sdk');
+
+// eslint-disable-next-line import/no-absolute-path
+const bearerToUserId = require('/opt/nodejs/bearer_to_user_id.js');
+
+
+const dynamoDB = new aws.DynamoDB.DocumentClient();
+const UserTableName = process.env.dynamodb_user_table_name;
+const VehiclesTableName = process.env.dynamodb_vehicle_table_name;
+
+function mapVehicleKeys(vehicleIds) {
+  return vehicleIds.map((vehicleId) => ({
+    vehicle_id: vehicleId
+  }));
+}
+
+async function getUser(userId) {
+  const params = {
+    TableName: UserTableName,
+    Key: {
+      user_id: userId
+    },
+    ProjectionExpression: 'user_id, first_name, last_name, phone, user_identifications, vehicles'
+  };
+  const data = await dynamoDB.get(params).promise();
+  return data.Item;
+}
+
+async function getVehicleByVehicleIds(vehiclesIds) {
+  const params = {
+    RequestItems: {
+      [VehiclesTableName]: {
+        Keys: mapVehicleKeys(vehiclesIds),
+        AttributesToGet: [
+          'color',
+          'identification',
+          'type'
+        ],
+        ConsistentRead: false
+      }
+    },
+    ReturnConsumedCapacity: 'NONE'
+  };
+  const data = await dynamoDB.batchGet(params).promise();
+  return data.Responses[VehiclesTableName];
+}
+
+exports.handler = async (event) => { // eslint-disable-line no-unused-vars
+  const userId = await bearerToUserId.bearerToUserId(event.headers.Authorization.substring(7));
+  const user = await getUser(userId);
+  const vehiclesIds = user.vehicles.map((vehicle) => vehicle.vehicle_id);
+  let responseBody = [];
+  if (vehiclesIds.length !== 0) {
+    const vehiclesInformation = await getVehicleByVehicleIds(vehiclesIds);
+    const vehicles = user.vehicles.map((vehicle, idx) => ({
+      nickname: vehicle.nickname,
+      seats: vehicle.seats,
+      type: vehicle.type,
+      vehicle_id: vehicle.vehicle_id,
+      vehicle_information: vehiclesInformation[idx]
+    }));
+    responseBody = { vehicles };
+  }
+
+  const response = {
+    statusCode: 200,
+    headers: { 'Access-Control-Allow-Origin': '*' },
+    body: JSON.stringify(responseBody)
+  };
+  return response;
+};