rama::http::service::web::extract

Struct Json

pub struct Json<T>(pub T);

Expand description

Wrapper used to create Json Http Responses, as well as to extract Json from Http Request bodies.

§Examples

§Creating a Json Response

use serde_json::json;
use rama_http::service::web::response::{IntoResponse, Json};

async fn handler() -> impl IntoResponse {
    Json(json!({
        "name": "john",
        "age": 30,
        "is_student": false
    }))
}

§Extracting Json from a Request

use serde_json::json;
use rama_http::service::web::response::Json;

#[derive(Debug, serde::Deserialize)]
struct Input {
    name: String,
    age: u8,
    alive: Option<bool>,
}


async fn handler(Json(input): Json<Input>) {
    if !input.alive.unwrap_or_default() {
        bury(&input.name);
    }
}

Tuple Fields§

§0: T

Trait Implementations§

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impl<T> Clone for Json<T>
where T: Clone,

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fn clone(&self) -> Json<T>

Returns a duplicate of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<T> Debug for Json<T>
where T: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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impl<T> Deref for Json<T>

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type Target = T

The resulting type after dereferencing.

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fn deref(&self) -> &<Json<T> as Deref>::Target

Dereferences the value.

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impl<T> DerefMut for Json<T>

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fn deref_mut(&mut self) -> &mut <Json<T> as Deref>::Target

Mutably dereferences the value.

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impl<T> From<T> for Json<T>

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fn from(inner: T) -> Json<T>

Converts to this type from the input type.

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impl<T> FromRequest for Json<T>
where T: DeserializeOwned + Send + Sync + 'static,

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type Rejection = JsonRejection

If the extractor fails it’ll use this “rejection” type. A rejection is a kind of error that can be converted into a response.

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async fn from_request( req: Request, ) -> Result<Json<T>, <Json<T> as FromRequest>::Rejection>

Perform the extraction.

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impl<T> IntoResponse for Json<T>
where T: Serialize,

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fn into_response(self) -> Response

Create a response.

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impl<T> OptionalFromRequest for Json<T>
where T: DeserializeOwned + Send + Sync + 'static,

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type Rejection = JsonRejection

If the extractor fails, it will use this “rejection” type. Read more

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async fn from_request( req: Request, ) -> Result<Option<Json<T>>, <Json<T> as OptionalFromRequest>::Rejection>

Perform the extraction.

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impl<T> TryFrom<Json<T>> for Body
where T: Serialize,

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type Error = OpaqueError

The type returned in the event of a conversion error.

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fn try_from(json: Json<T>) -> Result<Body, <Body as TryFrom<Json<T>>>::Error>

Performs the conversion.

Auto Trait Implementations§

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impl<T> UnwindSafe for Json<T>
where T: UnwindSafe,

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impl<T, A, P> Access<T> for P
where A: Access<T> + ?Sized, P: Deref<Target = A>,

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type Guard = <A as Access<T>>::Guard

A guard object containing the value and keeping it alive. Read more

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fn load(&self) -> >::Guard

The loading method. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T, A> DynAccess<T> for A
where A: Access<T>, <A as Access<T>>::Guard: 'static,

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fn load(&self) -> DynGuard<T>

The equivalent of [Access::load].

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impl<T> From<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.

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impl<T> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self> ⓘ

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

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fn with_current_context(self) -> WithContext<Self> ⓘ

Attaches the current Context to this type, returning a WithContext wrapper. Read more

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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