Day 15 of mastering Spring Boot: Generating API documentation with Swagger 3 and OpenAPI 3 standards.
Swagger 3 with OpenAPI 3 is like the Picasso of API documentation. It's the secret sauce for sharing APIs with the front end crew and clients. No more manual headaches, just add these two dependencies and boom! Swagger scans every nook and cranny and creates the perfect API document. It's so slick, it's like magic! 💫📜 #swagger #api #magic
# Mastering Spring Boot | Day 15 - Create API Documentation using Swagger 3 with OpenAPI 3 Standards
## 📝 Overview
In this session, we will focus on creating API documentation using Swagger 3 with OpenAPI 3 standards. API documentation is crucial when developing APIs, as it allows seamless sharing with frontend developers, third-party API clients, and more. With Swagger, the process becomes much simpler by requiring just two dependencies to be added.
### Implementation Steps
To implement API documentation using Swagger, we will:
- Add the 'Spring Docs OpenAPI Standard WebMVC UI' dependency
- Add the 'Spring Docs OpenAPI UI' dependency
- Define the base path and path for the docs file in the main application property file
- Run the Spring Boot application
- Access the created API documentation through the API path and Swagger UI
## 🛠 Implementation
We begin by adding the necessary dependencies and defining the base path and docs file path in the main application property file. Then, upon running the Spring Boot application, Swagger scans the entire classpath and creates an API document.
```markdown
Dependencies:
- Spring Docs OpenAPI Standard WebMVC UI
- Spring Docs OpenAPI UI
Base Path: /api
Docs Path: /docs
```
## 📊 API Documentation
Upon running the application, the API documentation is accessible through the specified path. It contains comprehensive information about the API, including endpoints and their functionalities.
## 📱 Swagger UI
The Swagger UI allows us to interact with the created API document. It provides a user-friendly interface for testing and executing API requests.
### Process Flow
1. Access the API documentation through the base path
2. Access the Swagger UI using the provided endpoint
3. Interact with the API to perform operations such as creating, updating, and deleting blog posts
## ✅ Blog Operations
The API documentation allows us to perform various blog operations, including creating, updating, and deleting blog posts. It provides a seamless way to execute the desired functionalities.
| Operation | Description |
|-----------------|--------------------------|
| Create Blog | Add a new blog post |
| Update Blog | Modify an existing blog |
| Get Blog | Retrieve a blog post |
| Delete Blog | Remove a blog post |
## 🚀 Test and Verify
Upon interacting with the API documentation and Swagger UI, we can test the different blog operations to ensure their successful execution.
### Sample Blog Creation
1. Click on 'Try Out' for the 'Create Blog' operation
2. Add a title and description for the blog post
3. Set the publish status and user ID
4. Click 'Execute' to create the blog
### Updates and Deletion
The API documentation also allows for updating and deleting existing blog posts, providing a comprehensive set of functionalities for blog management.
## Conclusion
Mastering Spring Boot with effective API documentation using Swagger 3 and OpenAPI 3 standards simplifies the process of sharing and testing APIs. It streamlines the development workflow and ensures seamless communication between backend and frontend systems.
## 🌟 Key Takeaways
- API documentation using Swagger 3 with OpenAPI 3 standards
- Interaction with the Swagger UI for testing and executing API requests
- Comprehensive blog operations, including creation, update, and deletion
## 📌 FAQ
- How to access the Swagger UI for API interaction?
- The Swagger UI can be accessed using the specified endpoint in the API documentation.
## 💡 Additional Notes
By implementing API documentation with Swagger 3 and OpenAPI 3 standards, the development process becomes more efficient and streamlined.
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