rama_http::service::web::extract

Struct Json

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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_types::{IntoResponse, response::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_types::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 copy 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<Self, Self::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<Body>

Create a response.
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impl<T> TryInto<Body> for Json<T>
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_into(self) -> Result<Body, <Json<T> as TryInto<Body>>::Error>

Performs the conversion.

Auto Trait Implementations§

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

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

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

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

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

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

Blanket Implementations§

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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<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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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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> 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<U> 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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impl<State, R> IntoEndpointService<State, ()> for R
where State: Clone + Send + Sync + 'static, R: IntoResponse + Clone + Send + Sync + 'static,

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fn into_endpoint_service( self, ) -> impl Service<State, Request<Body>, Response = Response<Body>, Error = Infallible>

convert the type into a rama_core::Service.
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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<S, P, B, E>(self, other: P) -> And<T, P>
where T: Policy<S, B, E>, P: Policy<S, B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<S, P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<S, B, E>, P: Policy<S, B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more