Uuid generator java annotation spring how to#
Uuid generator java annotation spring code#

There are many more properties available to these annotations than what is shown above.

description - The description of the parameter.

content - Allows you to specify what media types can be returned along with an example of the response body by using In the example above, it causes Swagger to display JSON representation of the Person - Include more information about a request parameter.

Uuid generator java annotation spring code#

responseCode - The response code that is returned.

description - The name or description of the endpoint.

By filling in a number of its properties, users will better understand your API.

responses - An array of that details what the endpoint can return, allowing you to show what happens on successful requests as well as unsuccessful or erroneous - Provides more information on what an endpoint returns.

You don’t have to specify an array here if there is a single tag writing tags = 'People' also works.

tags - What tags to group the endpoint under.

description - The description of the endpoint.

summary - The summary (or title) of an endpoint.

Now onto the GET endpoint, below I have expanded on the two annotations with the most - Adds details about what the endpoint does, including some properties to achieve this.

You can also define a description of the tag to describe the overall functionality of a group of endpoints. If no tag information is provided by a class and its methods, then a tag named after the class is used.

- Groups endpoints together, by their name.

Let’s start with the annotation on the class itself: In fact, the content in the annotations is far greater than the functional code of the snippet, highlighting the work it takes to properly document your APIs against the OpenAPI specification. The first thing to notice is that there is way more code now. Now, let’s look at what documentation is generated for a standard We will use Swagger to observe the output documentation (this will continue for all following ( '/people' ) public class PersonController Going to /swagger-ui/index.html will instead display Swagger’s pet store example, which probably isn’t what you wanted to see. The generated documentation can then be accessed by a Swagger UI which is started by default when using springdoc-openapi and is accessible by going to /swagger-ui.html, which will redirect you to a slightly different URL straight after ( /swagger-ui/index.html?configUrl=/v3/api-docs/swagger-config). As with most Spring Boot related libraries, it runs without requiring you to do anything and scans your (and for HTTP endpoints, generating OpenAPI related documentation based on the scan results. Taking your first steps with springdoc-openapiĪfter including the library in your project, how do you start generating documentation? This dependency should be used alongside Spring Boot.įor more information on supported functionality and their dependencies, refer to the official springdoc-openapi documentation. org.springdoc springdoc-openapi-ui 1.5.10 To include springdoc-openapi in your project, use the following dependency:

To top everything off, springdoc-openapi can start a Swagger UI based on the documentation it generates, making it even easier for users to understand and interact with your APIs. The library provides support for standard (don’t know what to really call this) Spring web code (e.g. It inspects an application’s code at runtime, looking at HTTP endpoints, their annotations and returned objects and uses this information to generate documentation. Springdoc-openapi is a library that automatically generates documentation for OpenAPI compliant REST APIs built with Spring. You can read more on the OpenAPI specification itself here. We will be using standard Spring to achieve this.

Uuid generator java annotation spring how to#

This post will show how to produce an OpenAPI compliant and documented REST API using Spring and springdoc-openapi. Tools, such as Swagger, can then be used to display documentation without developers maintaining documentation separate from an API’s code.Īll these described points translate into happier users while mitigating some of the burdens you’ll face while supporting your APIs. In other words, following the specification makes it easier for consumers to understand what it does and how to use it. The OpenAPI specification defines how to write HTTP APIs that can be consumed by any programming language and provide insight into the APIs’ functionality without access to source code or documentation.