Web APIs let you request information using an HTTP GET request and return the requested information in some structured format, such as JSON. Use an API that gives us a list of holidays in a country. We'll need to supply a two-letter country code (see the "Alpha 2" column in the table at https://www.nationsonline.org/oneworld/country code list.htm) and a four-digit year. The API URL will use: https://date.nager.at/Api/vi/Get/COUNTRYCODE/YEAR, where you replace COUNTRYCODE with the two-letter country code of the country you are interested in, and YEAR with the four-digit year you are interested in. The API sends you back a JSON response which consists of a list of dictionaries, one dictionary per holiday. Below is an example of a response from the API (only the first two dictionaries of the response are shown):