AIDK API Reference / aidk-kernel / applyMiddleware

Function: applyMiddleware()

function applyMiddleware<TArgs, TOutput>(procedure: Procedure<(...args: TArgs) => TOutput>, ...middleware: (
  | MiddlewarePipeline
  | Middleware<TArgs>)[]): Procedure<(...args: TArgs) => TOutput>;

Defined in: packages/kernel/src/procedure.ts:1553

Type-safe helper to apply middleware to a Procedure while preserving types.

This helper ensures that middleware types are correctly matched to the Procedure's argument types, avoiding the need for type assertions.

Type Parameters

Type Parameter
TArgs extends any[]
TOutput

Parameters

Parameter	Type
procedure	Procedure<(...args: TArgs) => TOutput>
...middleware	( | MiddlewarePipeline | Middleware<TArgs>)[]

Returns

Procedure<(...args: TArgs) => TOutput>

Example

const proc = createProcedure({ name: 'test' }, async (input: string) => input);
const middleware: Middleware<[string]>[] = [...];
const procWithMw = applyMiddleware(proc, middleware);
// procWithMw is still Procedure<[string], string> - types preserved!