How to Specify Required Properties on a RequestBody Object in OpenAPI Projects скачать в хорошем качестве

How to Specify Required Properties on a RequestBody Object in OpenAPI Projects

Learn how to define required properties for different operations in OpenAPI by using specialized schemas for create and update requests. --- This video is based on the question https://stackoverflow.com/q/63821392/ asked by the user 'user1031947' ( https://stackoverflow.com/u/1031947/ ) and on the answer https://stackoverflow.com/a/68718200/ provided by the user 'villapx' ( https://stackoverflow.com/u/5689220/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How to specify required properties on a requestBody object in an openApi project? Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- How to Specify Required Properties on a RequestBody Object in OpenAPI Projects When working with OpenAPI, properly defining required properties for various operations is critical for ensuring that your API behaves as expected. In this guide, we’ll tackle a common question: How can you configure required properties on a request body object differently for creating and updating a resource? The Problem Imagine you have an OpenAPI project with a base schema called Thing. This schema may contain multiple properties, but the requirements for creating a new Thing can differ significantly from those for updating an existing one. For instance, when creating a Thing, you might require prop1, prop2, and prop3, but when updating, only prop1 may be mandatory. If you define required properties at the base schema level, it affects all endpoints uniformly, making it challenging to implement specific requirements based on the operation being performed. Solution Overview To resolve this issue, we can use specialized schemas for creating and updating a Thing. By creating derived schemas that extend the base Thing schema, we can enforce different requirements for each action. Step-by-Step Implementation Here’s how you can define different requirements: Define the Base Schema (Thing) The base schema defines common properties that all operations will use. Here, we’ll use the OpenAPI required keyword judiciously to specify general requirements. [[See Video to Reveal this Text or Code Snippet]] Create the Update Schema (ThingUpdate) This schema will inherit from the base Thing and specify that at least two properties must be present. The additionalProperties: false ensures no unexpected fields are included during updates. [[See Video to Reveal this Text or Code Snippet]] Create the Create Schema (ThingCreate) Similar to the update schema, ThingCreate specifies that all properties except id are required, ensuring that when a new Thing is created, the necessary data is always provided. [[See Video to Reveal this Text or Code Snippet]] Updating Your Endpoints Now that you have your schemas defined, you need to modify your API endpoints to reference the new schemas accordingly: POST /things: Should now use ThingCreate in the request body. PUT /things/{id}: Should use ThingUpdate for the request body. Final Considerations There's a bit of redundancy with the id property since it isn't needed when creating a Thing. You may choose to refine your design to remove id entirely from the base object. Adjust minProperties in ThingUpdate to ensure only one of the required properties—prop1, prop2, or prop3—is needed for updates. If future requirements arise for retrieving all Things, consider creating a separate ThingGet schema that incorporates the id property. Conclusion By leveraging inherited schemas, you can finely control the required properties for different operations in your OpenAPI definitions. This approach not only enhances API usability but also streamlines the documentation process. If you're developing an API, make sure to apply this structure for a clear and intuitive experience for the users. Now, you should have a solid understanding of how to specify required properties uniquely for creating and updating resources in your OpenAPI project. Happy coding!