A simple web application made by Express framework to test the APIs of OpenWeatherMap and Yelp.

Develop a simple server that in turn invokes third-party APIs by manipulating the data.

The following cases were tested

• Missing or incorrect tokens
• Misspelled cities
• Wrong third-party APIs path
• Incorrect primary endpoint input

• There isn't defined number of input cities to put, but the code has been tested up to 5 cities (sydney, london, boston, paris, osaka).
• The number of businesses to display has been limited to 5. This setting can be changed from the settings.js file.
• A simple input validator has been added: Joi.
• You can have more informations about the endpoint by browser at the follow address /api-docs. You can also test them on the endpoint by entering the cities as input and clicking on Execute

• nodeJS v14.5.0

Install all dependencies with the follow command:

npm install

To be sure it work properly use this command as well

node --experimental-specifier-resolution=node index

Start the application with:

npm start

In the root of project create a file named .env with the following keys:

YELP_AUTHORIZATION=
OPEN_WEATHER_MAP_APP_KEY=

The values of these keys will be the authorization tokens of the third party services.

After started and setted the app the following endpoint (GET method) will be exposed

/getInformations

this endpoint needs to have input cities as querystring like this

http://localhost:3000/getInformations?cities=sydney

the answer will be similar to:

[
    {
        "city": "sydney",
        "businesses": [{
            "name": "Social Brew Cafe",
            "categories": [ "Cafes", "Breakfast & Brunch", "Coffee & Tea" ],
            "location": "224 Harris St"
        }],
        "weather": {
            "description": ["clear sky"],
            "tempMin": 288.76,
            "tempMax": 292.93,
            "humidity": 51
        }
    }
]

you can also get informations of more cities separating it by commas like

http://localhost:3000/getInformations?cities=sydney,london,boston

Marco Pestrin ([email protected])