Struct MiddlewareStack 

pub struct MiddlewareStack { /* private fields */ }

A stack of middleware with builder pattern.

This is a more ergonomic wrapper around MiddlewareChain.

Implementations

impl MiddlewareStack

pub fn new() -> Self

Create a new empty stack.

pub fn with<M: Middleware + 'static>(self, middleware: M) -> Self

Add middleware to the stack (builder pattern).

pub fn push<M: Middleware + 'static>(&mut self, middleware: M) -> &mut Self

Add middleware mutably.

pub fn prepend<M: Middleware + 'static>(&mut self, middleware: M) -> &mut Self

Add middleware to the front of the stack.

pub fn len(&self) -> usize

Get the number of middlewares.

pub fn is_empty(&self) -> bool

Check if the stack is empty.

pub fn into_chain(self) -> MiddlewareChain

Get the underlying chain.

pub fn execute<'a, F>( &'a self, ctx: QueryContext, final_handler: F, ) -> BoxFuture<'a, MiddlewareResult<QueryResponse>>

where F: FnOnce(QueryContext) -> BoxFuture<'a, MiddlewareResult<QueryResponse>> + Send + 'a,

Execute the stack with a final handler.

Trait Implementations

impl Default for MiddlewareStack

fn default() -> Self

Returns the “default value” for a type.

impl From<MiddlewareStack> for MiddlewareChain

fn from(stack: MiddlewareStack) -> Self

Converts to this type from the input type.