Struct ServiceAccountImpersonationCredentialProvider 

pub struct ServiceAccountImpersonationCredentialProvider { /* private fields */ }

A Google-specific provider that loads a source credential and applies a fixed service-account impersonation flow.

This wrapper is useful when the impersonated result must participate in a reqsign_core::Signer or another provider-oriented composition. It does not cache the source or result; the consuming signer owns output caching.

Implementations

impl ServiceAccountImpersonationCredentialProvider

pub fn new( source: impl ProvideCredential<Credential = Credential>, grant: ServiceAccountImpersonationGrant, ) -> Self

Create a provider from a source provider and bound impersonation grant.

pub fn with_lifetime(self, lifetime: Duration) -> Self

Request a fixed lifetime for each impersonated credential.

pub fn with_grant(self, grant: ServiceAccountImpersonationGrant) -> Self

Replace the bound target, scopes, and delegates.

Trait Implementations

impl Clone for ServiceAccountImpersonationCredentialProvider

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ServiceAccountImpersonationCredentialProvider

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

Formats the value using the given formatter.

impl ProvideCredential for ServiceAccountImpersonationCredentialProvider

type Credential = Credential

Credential returned by this loader.

async fn provide_credential( &self, ctx: &Context, ) -> Result<Option<Self::Credential>>

Load signing credential from current env.