In this lesson, you’ll adapt the code you wrote in the previous capstone to implement an HTTP server to provide the current date and time for a given country (e.g., “Italy” or “Japan”). In particular, you’ll expose and an HTTP API to return a representation of the current date and time, or a human-readable error message.
Let’s define an API that reflects the business requirements. Your server should be able to handle GET requests to the URI /datetime/<country> and return a string representing the current date and time in the correct time zone for the given country. For example, GET /datetime/italy should respond with a status code 200 – Ok and a string with the current date and time in Rome using a human-readable format, such as RFC 1123 (e.g., “Fri, 30 Apr 2021 11:44:35 +0200”). If the given country is not valid or not supported, your application should error with an explicative message. For example, GET /datetime/invalid should return a response with status code 404 - Not Found and the body "Unknown timezone for country invalid". Figure 18.1 provides a summary of the expected behavior of this API.