Spring Boot for Beginners
Swagger UI Example

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What is Swagger?
Swagger is an open source set of rules, specifications, and tools for developing RESTful APIs.
● It provides a framework for developers to create interactive API documentation.
● The documentation generated by Swagger is both machine-readable and human-readable.
● Swagger helps in describing and documenting the different endpoints, parameters, responses, and other
details of an API.
● Developers can use Swagger to build APIs that are easier to understand and use by other developers.
● It simplifies the process of documenting and sharing API information, making it accessible to both humans
and machines.
● The Swagger framework enables developers to design and develop APIs that conform to industry standards
and best practices.
● By using Swagger, developers can ensure consistent and accurate documentation of their APIs, making it
easier for others to integrate with and consume their services.

Integration
We are going to add the following dependency
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
<version>2.0.0-M4</version>
</dependency>
Add the following configuration to rh SpringBootApplication
@SpringBootApplication(scanBasePackages = {"com.code.with.bisky.*","org.springdoc"})
Accessing swagger-UI
http://localhost:8991/swagger-ui.html

Document Rest Controller API’s
We can document our API’s with the following annotations
● @Operation
● @ApiResponses
● @ApiResponse
@Operation(summary = "Creates a new user")
@ApiResponses(value = {
@ApiResponse(responseCode = "201", description = "Created user"),
@ApiResponse(responseCode = "400", description = "Bad request"),
@ApiResponse(responseCode = "500", description = "Server Error")
})

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