Module hl 

The PDK High Level Framework.

The PDK High Level Framework is the foundation for writting single-threaded non-blocking filters as main building block for custom policies.

pdk::hl relies on a reduced portion of the Rust async ecosystem, due to the limitations of the underlying WebAssembly platform and their single-threaded nature. Despite being single-threaded, pdk::hl supports concurrent execution of multiple incoming HTTP flows (Request/Response pairs).

Re-exports

pub use super::bootstrap::LaunchError;

pub use super::bootstrap::Launcher;

pub use super::Configuration;

pub use super::grpc;

pub use super::timer;

pub use crate::client::HttpClient;

pub use crate::client::HttpClientError;

pub use crate::client::HttpClientResponse;

pub use crate::client::InvalidUri;

pub use crate::client::Service;

pub use crate::client::Uri;

pub use crate::stream::PropertyAccessor;

pub use crate::stream::StreamProperties;

Modules

context

Structs

BodyStream

BodyStreamAsyncReader

Chunk

RequestBodyState

Body state of the Request state-machine.

RequestBodyStreamState

RequestHeadersState

Headers state of the Request state-machine.

RequestState

Initial state of the Request state-machine. This type is intended to be injected as a parameter in Request filters.

Response

An HTTP Response to be returned by Request filters.

ResponseBodyState

Body state of the Response state-machine.

ResponseBodyStreamState

ResponseHeadersState

Headers state of the Response state-machine.

ResponseState

Initial state of the Response state-machine. This type is intended to be injected as a parameter in Response filters.

Enums

BodyError

The error for BodyHandler operations.

Flow

Indicates whether the current Request will continue to upstream filters or if an early Response must break the current flow. This type is intended to be returned by Request filters.

RequestData

Carries user data from Request filter to Response filter when possible and represents the three posible final statuses from a Request filter. This type is intended to be injected as a parameter in Response filters.

Traits

BodyHandler

A handler for accessing the body of the current HTTP Flow.

BodyState

Abstract Body state of the HTTP Flow state-machine.

BodyStreamState

EntityState

Abstract initial state of the HTTP Flow state-machine.

HeadersBodyHandler

A handler for accessing the headers and body of the current HTTP Flow.

HeadersBodyState

Abstract HeadersBody state of the HTTP Flow state-machine.

HeadersHandler

A handler for accessing the headers of the current HTTP Flow.

HeadersState

Abstract Headers state of the HTTP Flow state-machine.

IntoBodyState

Abstract state of the HTTP Flow state-machine allowed to be moved into the Body state.

IntoBodyStreamState

IntoFlow

A value-to-value conversion that consumes the input value and converts it in a Flow.

Functions

on_request

Creates a Request filter from a handler.

on_response

Creates a Response filter from a handler.