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BlockingClient

Struct BlockingClient 

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pub struct BlockingClient { /* private fields */ }
Expand description

A synchronous client with a hard per-call deadline. See the module docs.

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impl BlockingClient

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pub fn new( client: RegistryClient, resolver: WebResolver, ) -> Result<Self, AcdpError>

Wrap client (the registry every call goes to) and resolver (DID resolution for verification), with DEFAULT_WORKER_THREADS runtime workers.

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pub fn with_worker_threads( client: RegistryClient, resolver: WebResolver, worker_threads: usize, ) -> Result<Self, AcdpError>

As Self::new, with worker_threads runtime workers (at least one). More workers let more concurrent calls verify signatures in parallel; network waits do not need them.

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pub fn with_cross_registry(self, resolver: CrossRegistryResolver) -> Self

Enable Self::resolve with resolver. The result shares this client’s runtime; clones made before the call keep their previous configuration.

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pub fn client(&self) -> &RegistryClient

The wrapped registry client.

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pub fn resolver(&self) -> &WebResolver

The wrapped DID resolver.

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pub fn run<T, F, Fut>(&self, deadline: Instant, f: F) -> Result<T, AcdpError>
where T: Send + 'static, F: FnOnce(BlockingClient) -> Fut, Fut: Future<Output = Result<T, AcdpError>> + Send + 'static,

Run any future against the wrapped clients under deadline. The escape hatch for async APIs without a dedicated method: f receives a handle to this client and returns the future to run.

let caps = c.run(Instant::now() + Duration::from_secs(1), |c| async move {
    c.client().capabilities().await
})?;
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pub fn retrieve( &self, ctx_id: &CtxId, deadline: Instant, ) -> Result<FullContext, AcdpError>

RegistryClient::retrieve: the context as served, unverified.

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pub fn fetch_verified( &self, ctx_id: &CtxId, policy: &VerificationPolicy, deadline: Instant, ) -> Result<VerifiedContext, AcdpError>

VerifiedContext::fetch_with_policy: retrieve and verify.

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pub fn fetch_current_verified( &self, lineage_id: &LineageId, policy: &VerificationPolicy, deadline: Instant, ) -> Result<VerifiedContext, AcdpError>

VerifiedContext::fetch_current_with_policy: retrieve and verify a lineage’s current head.

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pub fn resolve( &self, ctx_id: &CtxId, deadline: Instant, ) -> Result<VerifiedContext, AcdpError>

CrossRegistryResolver::resolve: resolve and verify a context at whichever registry ctx_id names. Requires Self::with_cross_registry; otherwise fails with AcdpError::SchemaViolation without issuing a request.

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pub fn changes( &self, since: &Since, filter: &WatchFilter, limit: Option<u32>, deadline: Instant, ) -> Result<ChangesResponse, AcdpError>

RegistryClient::changes: one page of the changes feed. Entries are hints until Self::verify_change passes.

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pub fn verify_change( &self, change: &Change, held: Option<HeldContext<'_>>, policy: &VerificationPolicy, deadline: Instant, ) -> Result<ChangeVerdict, AcdpError>

verify_change (RFC-ACDP-0018 §7). held is copied, so the borrow ends when this returns. Ok(Rejected) is a final verdict; Err (including AcdpError::DeadlineExceeded) means the entry was not decided and should be retried.

Trait Implementations§

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impl Clone for BlockingClient

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for BlockingClient

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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> 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, 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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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> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<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<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<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<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
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type Error = !

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

Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
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