Express API: Dates and Times 📆

For this project, you will build a small API that returns data about dates. Familiarity working with dates, Date objects in JavaScript, and with date formatting libraries like Day.js is essential for a developer.

Getting Started

You'll need to create a new Express app from scratch for this project, beginning with installing express as a dependency. You'll also need to install dayjs as a dependency.

You'll need to read the Day.js documentation to learn how to use the library to make these endpoints work.

Requirements: Endpoints

Your API should have the following endpoints:

• GET /api/dates/today: Returns the current date in the format Tuesday Jan 16, 2024.
• GET /api/dates/tomorrow: Returns the date of the next day in the format Wednesday Jan 17, 2024.
• GET /api/dates/yesterday: Returns the date of the previous day in the format Monday Jan 15, 2024.
• GET /api/day-of-week/:year/:month/:day: Returns the day of the week for the date provided in the URL as a parameter, e.g. /api/day-of-week/2024/1/16.
• GET /api/current-time: Returns the current time in the format 19:20:30. This endpoint should accept a query parameter called format that can be used to change the format of the time. For example, /api/current-time?format=12 should return the time in the format 7:20:30 PM. The default format should be 24.
• GET /api/timestamp: Returns the current timestamp in milliseconds. This endpoint should accept a query parameter called format that can be used to change the format of the timestamp. For example, /api/timestamp?format=seconds should return the timestamp in seconds. The default format should be milliseconds.

Each endpoint should return JSON data in the following format:

{
  "date": "Tuesday Jan 16, 2024"
}

Successful responses should be sent with a 200 status code.

404s

If a user attempts to access an endpoint that does not exist, your API should return a JSON response in the following format:

{
  "error": "Not found"
}

The response should also have a status code of 404.

🌶️ Spicy Options

• Return the current date in the format 2024-01-16 for the today, tomorrow, and yesterday endpoints when a query pa.
• Add an endpoint that returns the current date in the format 2024-01-16T19:20:30.000Z. This is the format used by the JavaScript Date object and is called ISO 8601.
• Add the ability to accept a query parameter called timezone to the current-time endpoint. Return the current date and time in the timezone provided. For example, /api/current-time?timezone=America/New_York should return the current time in New York. You can use the Day.js timezone plugin to help with this.
• Look through the Day.js library. What other features does it have? Add a new endpoint that uses one of these features.

References that may help

• Day.js documentation If you open the console on this page, you can run the methods in the documentation to see what they return.
• Express documentation
• MDN JS Date object
• REST Client extension for VS Codium This makes it super easy to test your endpoints right in VS Codium.