xitca_web::handler::json

Struct Json

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pub struct Json<T, const LIMIT: usize = DEFAULT_LIMIT>(pub T);
Expand description

Extract type for Json object. const generic param LIMIT is for max size of the object in bytes. Object larger than limit would be treated as error.

Default limit is DEFAULT_LIMIT in bytes.

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§0: T

Trait Implementations§

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impl<T: Clone, const LIMIT: usize> Clone for Json<T, LIMIT>

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

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, const LIMIT: usize> Debug for Json<T, LIMIT>
where T: Debug,

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

Formats the value using the given formatter. Read more
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impl<T, const LIMIT: usize> Deref for Json<T, LIMIT>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<T, const LIMIT: usize> DerefMut for Json<T, LIMIT>

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl<'a, 'r, C, B, T, const LIMIT: usize> FromRequest<'a, WebContext<'r, C, B>> for Json<T, LIMIT>
where B: BodyStream + Default, T: for<'de> Deserialize<'de>,

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type Type<'b> = Json<T, LIMIT>

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type Error = Error

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async fn from_request( ctx: &'a WebContext<'r, C, B>, ) -> Result<Self, Self::Error>

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impl<T> PathGen for Json<T>

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fn path_gen(&mut self, prefix: &str) -> String

path generator. Read more
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impl<'r, C, B, T> Responder<WebContext<'r, C, B>> for Json<T>
where T: Serialize,

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type Response = Response<ResponseBody>

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type Error = Error

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async fn respond( self, ctx: WebContext<'r, C, B>, ) -> Result<Self::Response, Self::Error>

generate response from given request.
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fn map(self, res: Self::Response) -> Result<Self::Response, Self::Error>

map response type and mutate it’s state. default to pass through without any modification.
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impl<T> RouteGen for Json<T>

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type Route<R> = RouterMapErr<R>

service builder type for generating the final route service.
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fn route_gen<R>(route: R) -> Self::Route<R>

route service generator. Read more
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impl<'r, C, B, T> Service<WebContext<'r, C, B>> for Json<T>
where T: Serialize + Clone,

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type Response = Response<ResponseBody>

The Ok part of output future.
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type Error = Error

The Err part of output future.
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async fn call( &self, ctx: WebContext<'r, C, B>, ) -> Result<Self::Response, Self::Error>

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

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type Response = Json<T>

The Ok part of output future.
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type Error = Infallible

The Err part of output future.
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async fn call(&self, _: ()) -> Result<Self::Response, Self::Error>

Auto Trait Implementations§

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impl<T, const LIMIT: usize> Freeze for Json<T, LIMIT>
where T: Freeze,

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impl<T, const LIMIT: usize> RefUnwindSafe for Json<T, LIMIT>
where T: RefUnwindSafe,

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impl<T, const LIMIT: usize> Send for Json<T, LIMIT>
where T: Send,

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impl<T, const LIMIT: usize> Sync for Json<T, LIMIT>
where T: Sync,

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impl<T, const LIMIT: usize> Unpin for Json<T, LIMIT>
where T: Unpin,

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impl<T, const LIMIT: usize> UnwindSafe for Json<T, LIMIT>
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> BorrowState<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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<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<R> Rng for R
where R: RngCore + ?Sized,

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fn random<T>(&mut self) -> T
where StandardUniform: Distribution<T>,

Return a random value via the StandardUniform distribution. Read more
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fn random_iter<T>(self) -> Iter<StandardUniform, Self, T>
where Self: Sized, StandardUniform: Distribution<T>,

Return an iterator over random variates Read more
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fn random_range<T, R>(&mut self, range: R) -> T
where T: SampleUniform, R: SampleRange<T>,

Generate a random value in the given range. Read more
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fn random_bool(&mut self, p: f64) -> bool

Return a bool with a probability p of being true. Read more
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fn random_ratio(&mut self, numerator: u32, denominator: u32) -> bool

Return a bool with a probability of numerator/denominator of being true. Read more
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fn sample<T, D>(&mut self, distr: D) -> T
where D: Distribution<T>,

Sample a new value, using the given distribution. Read more
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fn sample_iter<T, D>(self, distr: D) -> Iter<D, Self, T>
where D: Distribution<T>, Self: Sized,

Create an iterator that generates values using the given distribution. Read more
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fn fill<T>(&mut self, dest: &mut T)
where T: Fill + ?Sized,

Fill any type implementing Fill with random data Read more
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fn gen<T>(&mut self) -> T
where StandardUniform: Distribution<T>,

👎Deprecated since 0.9.0: Renamed to random to avoid conflict with the new gen keyword in Rust 2024.
Alias for Rng::random.
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fn gen_range<T, R>(&mut self, range: R) -> T
where T: SampleUniform, R: SampleRange<T>,

👎Deprecated since 0.9.0: Renamed to random_range
Alias for Rng::random_range.
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fn gen_bool(&mut self, p: f64) -> bool

👎Deprecated since 0.9.0: Renamed to random_bool
Alias for Rng::random_bool.
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fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool

👎Deprecated since 0.9.0: Renamed to random_ratio
Alias for Rng::random_ratio.
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impl<T> RngCore for T
where T: DerefMut, <T as Deref>::Target: RngCore,

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fn next_u32(&mut self) -> u32

Return the next random u32. Read more
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fn next_u64(&mut self) -> u64

Return the next random u64. Read more
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fn fill_bytes(&mut self, dst: &mut [u8])

Fill dest with random data. Read more
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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<S, Arg> ServiceExt<Arg> for S
where S: Service<Arg>,

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fn enclosed<T>(self, build: T) -> Pipeline<Self, T, BuildEnclosed>
where T: Service<Result<Self::Response, Self::Error>>, Self: Sized,

Enclose Self with given T as Service<<Self as Service<_>>::Response>>. In other word T would take Self’s Service::Response type as it’s generic argument of Service<_> impl.
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fn enclosed_fn<T, Req, O>( self, func: T, ) -> Pipeline<Self, AsyncFn<T>, BuildEnclosed>
where T: AsyncFn(&Self::Response, Req) -> O + Clone, Self: Sized,

Function version of Self::enclosed method.
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fn map<F, Res, ResMap>(self, mapper: F) -> Pipeline<Self, Map<F>, BuildEnclosed>
where F: Fn(Res) -> ResMap + Clone, Self: Sized,

Mutate <<Self::Response as Service<Req>>::Future as Future>::Output type with given closure.
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fn map_err<F, Err, ErrMap>( self, err: F, ) -> Pipeline<Self, MapErr<F>, BuildEnclosed>
where F: Fn(Err) -> ErrMap + Clone, Self: Sized,

Mutate <Self::Response as Service<Req>>::Error type with given closure.
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fn and_then<F>(self, factory: F) -> Pipeline<Self, F, BuildAndThen>
where F: Service<Arg>, Self: Sized,

Chain another service factory who’s service takes Self’s Service::Response output as Service::Request.
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impl<S, Req> ServiceObject<Req> for S
where S: Service<Req>,

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type Response = <S as Service<Req>>::Response

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type Error = <S as Service<Req>>::Error

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fn call<'s>( &'s self, req: Req, ) -> Pin<Box<dyn Future<Output = Result<<S as ServiceObject<Req>>::Response, <S as ServiceObject<Req>>::Error>> + 's>>
where Req: 's,

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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<R> TryRngCore for R
where R: RngCore + ?Sized,

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type Error = Infallible

The type returned in the event of a RNG error.
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fn try_next_u32(&mut self) -> Result<u32, <R as TryRngCore>::Error>

Return the next random u32.
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fn try_next_u64(&mut self) -> Result<u64, <R as TryRngCore>::Error>

Return the next random u64.
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fn try_fill_bytes( &mut self, dst: &mut [u8], ) -> Result<(), <R as TryRngCore>::Error>

Fill dest entirely with random data.
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fn unwrap_err(self) -> UnwrapErr<Self>
where Self: Sized,

Wrap RNG with the UnwrapErr wrapper.
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fn unwrap_mut(&mut self) -> UnwrapMut<'_, Self>

Wrap RNG with the UnwrapMut wrapper.
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fn read_adapter(&mut self) -> RngReadAdapter<'_, Self>
where Self: Sized,

Convert an RngCore to a RngReadAdapter.
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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
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impl<T> CryptoRng for T
where T: DerefMut, <T as Deref>::Target: CryptoRng,

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impl<T> Formattable for T
where T: Deref, <T as Deref>::Target: Formattable,

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impl<T> Parsable for T
where T: Deref, <T as Deref>::Target: Parsable,

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impl<R> TryCryptoRng for R
where R: CryptoRng + ?Sized,