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utoipa - Autogenerate OpenAPI documentation
Want to have your API documented with OpenAPI? But you dont want to see the trouble with manual yaml or json tweaking? Would like it to be so easy that it would almost be like utopic? Don't worry utoipa is just there to fill this gap. It aims to do if not all then the most of heavy lifting for you enabling you to focus writing the actual API logic instead of documentation. It aims to be minimal, simple and fast. It uses simple proc macros which you can use to annotate your code to have items documented.
Utoipa crate provides autogenerated OpenAPI documentation for Rust REST APIs. It treats code first appoach as a first class citizen and simplifies API documentation by providing simple macros for generating the documentation from your code.
It also contains Rust types of OpenAPI spec allowing you to write the OpenAPI spec only using Rust if autogeneration is not your flavor or does not fit your purpose.
Long term goal of the library is to be the place to go when OpenAPI documentation is needed in Rust codebase.
What's up with the word play?
The name comes from words utopic
and api
where uto
is the first three letters of utopic
and the ipa
is api reversed.
Features
- default Default enabled features are json.
- json Enables serde_json what allow to use json values in OpenAPI specification values. Thus is enabled by default.
- swagger_ui Enables the embedded Swagger UI to view openapi api documentation.
- actix-web Enables actix-web integration with pre-configured SwaggerUI service factory allowing users to use the Swagger UI without a hazzle.
- actix_extras Enhances actix-web intgration with being able to parse some documentation from actix web macro attributes and types.
- debug Add extra traits such as debug traits to openapi definitions and elsewhere.
Install
Add minimal dependency declaration to Cargo.toml.
[dependencies]
utoipa = "0.1.0.beta.1"
To enable more features such as use of swagger together with actix-web framework you could define the dependency as follows.
[dependencies]
utoipa = { version = "0.1.0.beta.1", features = ["swagger_ui", "actix-web", "actix_extras"] }
Current project status
This project is currently in active development and not ready for PRODUCTION use!
The basic features are nearly implemented and the it can handle the OpenApi generation in most typical situations. It is yet to be released to crates later on when the api and the functionalities gets mature enough. Before initial release there are going to be still couple of beta releases and one or few rc releases.
See https://github.com/juhaku/utoipa/projects for more details about the progress of the project implementation.
Examples
Create a struct or it could be an enum also. Add Component
derive macro to it so it can be registered
as a component in OpenApi schema.
use Component;
Create an handler that would handle your business logic and add path
proc attribute macro over it.
Tie the Component
and the api above to the OpenApi schema with following OpenApi
derive proc macro.
use OpenApi;
use crate Pet;
;
println!;
This would produce api doc something similar to:
If you have swagger_ui and the actix-web features enabled you can display the openapi documentation as easily as follows:
.bind?
.run
.await
new
See more details in swagger_ui
module of utoipa docs.
You can also browse to examples for
more comprehensinve examples.
License
Licensed under either of Apache 2.0 or MIT license at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, shall be dual licensed, without any additional terms or conditions.