Struct Next 

pub struct Next { /* private fields */ }

Opaque continuation passed to a Middleware. Calling Next::run proceeds to the next middleware in the chain or to the Terminal if the chain is empty.

Implementations

impl Next

pub fn new( middlewares: Vec<Arc<dyn DynMiddleware>>, terminal: Arc<dyn Terminal>, ) -> Self

Builds a new Next from a chain of middlewares and a terminal.

Middlewares are executed in the order they appear in the slice: the first one wraps the second, which wraps the third, and so on.

pub async fn run( self, envelope: &MessageEnvelope, ctx: &HandlerContext, ) -> Result<BoxOutput, HexeractError>

Advances the pipeline by one step.

Errors

Returns the HexeractError produced by the next middleware in the chain or by the Terminal when the chain is exhausted.