Example Implementation

To provide an example implementation, I created a Loopback API that exposes a route, /reservations/availability. This route is available for POST requests only, and requires two params: startDate and endDate. It returns a JSON collection of campsite objects that have availability for that date range.

To run the api, simply follow these steps:

1. Clone or download a copy of campspot-api

2. Edit ./server/datasources.json and enter your credentials for a MySQL database and a database that you'd like to use for testing

3. Run npm install to install the dependencies (including this one, availability-service)

4. Run node . to start the server in a terminal session. This will create a database migration with the data from the provided JSON document (located in the file ./server/boot/test-case.js)

5. Navigate to http://localhost:3000/explorer/#!/Reservation/Reservation_availability and enter the dates '2016-06-07' and '2016-06-10' in the provided text input fields, then submit.

6. Inspect the response body. You should see the following JSON object:

   {
     "startDate": "2016-06-07",
     "endDate": "2016-06-10",
     "available_sites": [
       { "name": "Daniel Boone Bungalow", "id": 5 },
       { "name": "Teddy Rosevelt Tent Site", "id": 6 },
       { "name": "Bear Grylls Cozy Cave", "id": 8 },
       { "name": "Wyatt Earp Corral", "id": 9 }
     ]
   }
   

Conclusion

Thank you again for the opportunity. Please feel free to contact me if you have any additional questions or comments.