Trait PlatformProvider 

pub trait PlatformProvider: Send + Sync {
    // Required methods
    fn instance_uid<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<String, PlatformError>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             Self: 'async_trait;
    fn secret_store<'life0, 'life1, 'async_trait>(
        &'life0 self,
        namespace: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<Arc<dyn KvStore>, PlatformError>> + Send + 'async_trait>>
       where 'life0: 'async_trait,
             'life1: 'async_trait,
             Self: 'async_trait;
    fn crypto(&self) -> Arc<dyn CryptoProvider> ;
}

Composite platform provider — the three OS-level services a Hyper needs.

Deliberately narrow and noun-shaped: each method answers one question.

Method	Question
instance_uid	“What’s my stable ID, across restarts?”
secret_store	“Where do I keep actor credentials?”
crypto	“How do I verify signatures?”

Implementations own their own root (a filesystem dir on native, a localStorage prefix on web) and handle setup internally. Callers never think in terms of filesystem paths or directory creation.

Required Methods

fn instance_uid<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<String, PlatformError>> + Send + 'async_trait>>

where 'life0: 'async_trait, Self: 'async_trait,

Stable instance UID that survives restarts.

Must return the same value for the lifetime of the underlying storage (e.g. a given data_dir on native, a given localStorage prefix on web).

fn secret_store<'life0, 'life1, 'async_trait>( &'life0 self, namespace: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Arc<dyn KvStore>, PlatformError>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Open a namespaced KV store (per-actor credential / PSK storage).

The namespace is supplied by the caller; the provider decides how to combine it with its own root to produce a real storage location.

fn crypto(&self) -> Arc<dyn CryptoProvider>

Cryptographic primitives (signature verification, hashing).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors