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Rob Ede 2022-09-11 19:12:27 +01:00
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docs/extractors.md
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@ -34,7 +34,7 @@ The [`Query<T>`][querystruct] type provides extraction functionality for the req
<CodeBlock example="extractors" file="query.rs" section="query" />
## Json
## JSON
[`Json<T>`][jsonstruct] allows deserialization of a request body into a struct. To extract typed information from a request's body, the type `T` must implement `serde::Deserialize`.
@ -56,13 +56,13 @@ A URL-encoded form body can be extracted to a struct, much like `Json<T>`. This
## Other
Actix Web also provides several other extractors:
Actix Web also provides many other extractors, here's a few important ones:
- [_Data_][datastruct] - If you need access to an application state.
- _HttpRequest_ - _HttpRequest_ itself is an extractor which returns self, in case you need access to the request.
- _String_ - You can convert a request's payload to a _String_. [_Example_][stringexample] is available in doc strings.
- _actix_web::web::Bytes_ - You can convert a request's payload into _Bytes_. [_Example_][bytesexample] is available in doc strings.
- _Payload_ - Low-level payload extractor primarily for building other extractors. [_Example_][payloadexample]
- [`Data`][datastruct] - For accessing pieces of application state.
- [`HttpRequest`][httprequest] - `HttpRequest` is itself an extractor, in case you need access to other parts of the request.
- `String` - You can convert a request's payload to a `String`. [_An example_][stringexample] is available in the rustdoc.
- [`Bytes`][bytes] - You can convert a request's payload into _Bytes_. [_An example_][bytesexample] is available in the rustdoc.
- [`Payload`][payload] - Low-level payload extractor primarily for building other extractors. [_An example_][payloadexample] is available in the rustdoc.
# Application State Extractor
@ -86,8 +86,11 @@ Be careful when using blocking synchronization primitives like `Mutex` or `RwLoc
[jsonconfig]: https://docs.rs/actix-web/4/actix_web/web/struct.JsonConfig.html
[formconfig]: https://docs.rs/actix-web/4/actix_web/web/struct.FormConfig.html
[datastruct]: https://docs.rs/actix-web/4/actix_web/web/struct.Data.html
[httprequest]: https://docs.rs/actix-web/4/actix_web/struct.HttpRequest.html
[stringexample]: https://docs.rs/actix-web/4/actix_web/trait.FromRequest.html#impl-FromRequest-for-String
[bytes]: https://docs.rs/actix-web/4/actix_web/web/struct.Bytes.html
[bytesexample]: https://docs.rs/actix-web/4/actix_web/trait.FromRequest.html#impl-FromRequest-5
[payload]: https://docs.rs/actix-web/4/actix_web/web/struct.Payload.html
[payloadexample]: https://docs.rs/actix-web/4/actix_web/web/struct.Payload.html
[docsrs_match_info]: https://docs.rs/actix-web/latest/actix_web/struct.HttpRequest.html#method.match_info
[actix]: https://actix.github.io/actix/actix/