Merge pull request #6 from jdhruv1503/patch-1

Added day7 dev problem

problem-of-the-day/day07/dev.md

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+## Dev Problem of the Day (03/06/2024)
+
+### Introduction to RESTful API Design
+
+Today, you should learn about RESTful APIs, which are a set of rules that allow programs to communicate with each other. RESTful APIs are widely used in web development! It's named after **Re**presentational **S**tate **T**ransfer (REST); an architectural style that defines a set of constraints to be used for creating web services.
+
+## Resources
+
+1. [AWS - What is RESTful API?](https://aws.amazon.com/what-is/restful-api/)
+2. [Red Hat - What is a REST API?](https://www.redhat.com/en/topics/api/what-is-a-rest-api)
+3. [Rest API Tutorial](https://www.restapitutorial.com/) - This tutorial will help you understand the basics of RESTful APIs, including how to design and consume them.
+
+## Tips
+
+1. First, learn about HTTP methods such as `GET`, `POST`, `PUT`, and `DELETE`.
+2. Understand the concept of *statelessness* in a REST API.
+3. Absorb the general structure and rules governing a RESTful architecure, keeping *statelessness* in mind!
+4. Then, practice building a simple RESTful API using a framework like Express.js or Flask, and a simple database (a local SQL server or Mongo Atlas Free Tier will work!)