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Granter

opendal::reqsign_core

Struct Granter 

pub struct Granter<K>
where
    K: SigningCredential,
{ /* private fields */ }
Available on crate feature reqsign only.
Expand description

Loads a source credential and grants a bounded service credential.

Granter caches only the source credential. Every call to Granter::grant invokes the configured service granter and validates the returned credential after all granting I/O has completed. Granted outputs are never cached or written back into the source cache.

Implementations§

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impl<K> Granter<K>
where K: SigningCredential,

pub fn new( ctx: Context, provider: impl ProvideCredential<Credential = K>, granter: impl GrantCredential<Credential = K>, ) -> Granter<K>

Create a granter from a context, source provider, and bound granting operation.

pub fn with_context(self, ctx: Context) -> Granter<K>

Replace the context and create an isolated empty source credential cache.

pub fn with_credential_provider( self, provider: impl ProvideCredential<Credential = K>, ) -> Granter<K>

Replace the source provider and create an isolated empty source credential cache.

pub fn with_credential_granter( self, granter: impl GrantCredential<Credential = K>, ) -> Granter<K>

Replace the granting operation while retaining the shared source credential cache.

The replacement operation must accept the same service credential family and must still validate the same concrete source credential variant before doing I/O. The service operation owns any service-specific intermediate cache; Granter does not transfer such state from the old operation.

pub async fn grant(&self, expires_in: Option<Duration>) -> Result<K, Error>

Grant a bounded service credential.

Cached source credentials must be fresh according to SigningCredential::is_valid and usable through the service granter’s required deadline. A refreshed source credential only needs to satisfy the exact deadline. Provider and granting errors are returned without retry or fallback. The granted result must own material independent from the cached source credential.

Trait Implementations§

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impl<K> Clone for Granter<K>
where K: Clone + SigningCredential,

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fn clone(&self) -> Granter<K>

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<K> Debug for Granter<K>
where K: SigningCredential,

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<K> !RefUnwindSafe for Granter<K>

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impl<K> !UnwindSafe for Granter<K>

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impl<K> Freeze for Granter<K>
where Arc<dyn ProvideCredentialDyn<Credential = K>>: Freeze, Arc<dyn GrantCredentialDyn<Credential = K>>: Freeze, Arc<Mutex<Option<K>>>: Freeze,

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impl<K> Send for Granter<K>
where Arc<dyn ProvideCredentialDyn<Credential = K>>: Send, Arc<dyn GrantCredentialDyn<Credential = K>>: Send, Arc<Mutex<Option<K>>>: Send,

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impl<K> Sync for Granter<K>
where Arc<dyn ProvideCredentialDyn<Credential = K>>: Sync, Arc<dyn GrantCredentialDyn<Credential = K>>: Sync, Arc<Mutex<Option<K>>>: Sync,

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impl<K> Unpin for Granter<K>
where Arc<dyn ProvideCredentialDyn<Credential = K>>: Unpin, Arc<dyn GrantCredentialDyn<Credential = K>>: Unpin, Arc<Mutex<Option<K>>>: Unpin,

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impl<K> UnsafeUnpin for Granter<K>
where Arc<dyn ProvideCredentialDyn<Credential = K>>: UnsafeUnpin, Arc<dyn GrantCredentialDyn<Credential = K>>: UnsafeUnpin, Arc<Mutex<Option<K>>>: UnsafeUnpin,

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Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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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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Causes self to use its LowerHex implementation when Debug-formatted.
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