ING-Api-Challenge

HOW TO RUN

assumptions

• you have sbt and docker installed on your machine

Steps

• In the project directory run the following command in the terminal sbt docker:publishLocal - this will build a docker image that will host our API at port :8080

• Once we have the image create, navigate to the docker folder in the terminal. There we have the docker-compose.yml file that we will use to launch our Redis together with our app

The command needed to run it is docker compose up

• Once our app is up and running we'll then test our endpoints on localhost:8080

Example query GET: localhost:8080/me/books/list?author=king

An example result:

{
    "authorSearchTerm": "king",
    "authorWithBooks": [
        {
            "author": "Stephen King and Owen King",
            "books": [
                {
                    "name": "SLEEPING BEAUTIES",
                    "publisher": "Gallery",
                    "publish_date": "2017-10-22"
                }
            ]
        }

...
                        ]
}

• We can query by year of publishing localhost:8080/me/books/list?author=king&year=2014

The above query would return all authors named king who published books in the year 2014

For every author result, they would be accompanied by a books array if they published multiple books within the years searched.

An example result:

{
    "authorSearchTerm": "king",
    "authorWithBooks": [
        {
            "author": "Ross King",
            "books": [
                {
                    "name": "The Judgment of Paris: The Revolutionary Decade That Gave the World Impressionism",
                    "publisher": null,
                    "publish_date": null
                },
                {
                    "name": "Leonardo and the Last Supper",
                    "publisher": null,
                    "publish_date": null
                },
                {
                    "name": "Ex-Libris",
                    "publisher": null,
                    "publish_date": null
                },
                {
                    "name": "Brunelleschi's Dome: How a Renaissance Genius Reinvented Architecture",
                    "publisher": null,
                    "publish_date": null
                },
                {
                    "name": "Domino",
                    "publisher": null,
                    "publish_date": null
                },
                {
                    "name": "Brunelleschi's Dome: How a Renaissance Genius Reinvented Architecture",
                    "publisher": null,
                    "publish_date": null
                },
                {
                    "name": "Domino",
                    "publisher": null,
                    "publish_date": null
                }
            ]
        }
        ...
    ]
}

• Results are cached using Redis and accessed using Redis4Cats which gives us a nice functional interface and polymorphism over the asynchronous effects, allows for smooth composition as we fetch data online, transform it into a result for the API and then cache it