Can you explain the concept of RESTful APIs and how they differ from SOAP-based APIs?

During my final year at college, I worked on a project where we developed a simple web application for managing student records. We decided to use RESTful APIs to enable communication between the front-end and back-end. I learned how to structure our API endpoints to perform CRUD operations (Create, Read, Update, Delete) effectively using HTTP methods like GET, POST, PUT, and DELETE. By using REST, we could easily fetch student data in JSON format, which made it straightforward for our front-end team to display information. This experience not only solidified my understanding of RESTful APIs but also taught me the importance of designing user-friendly interfaces.

During my internship, I collaborated on a volunteer project where we aimed to streamline food distribution for local shelters. We utilized a RESTful API to connect our database of food items with the shelters' inventory systems. This allowed shelters to update their needs in real-time. My role involved helping to create API endpoints that could handle requests like listing available food items, adding new donations, and updating inventory. This hands-on experience taught me how RESTful APIs could be leveraged to enhance communication between different systems, making processes more efficient and responsive.

In my first job as a junior developer, I was tasked with integrating a third-party service that used SOAP APIs for transaction processing. While I had previously worked with RESTful services, this was my first exposure to SOAP. I learned that SOAP APIs are more rigid in terms of structure and require a formal contract (WSDL). My task involved creating and sending XML requests and handling responses. This experience helped me appreciate the differences between REST and SOAP, particularly in how SOAP's emphasis on security and formal contracts suited the financial transactions we were processing.