import type { ErrorDef, InferErrorData } from '@ts-pf/contract';
export type NextFn<TCtx, TInput, TOutput> = (opts?: {
    context?: Partial<TCtx>;
    input?: TInput;
}) => Promise<TOutput>;
export type MiddlewareFn<TCtx = unknown, TInput = unknown, TOutput = unknown> = (opts: {
    context: TCtx;
    input: TInput;
    next: NextFn<TCtx, TInput, TOutput>;
    errors: ErrorFactory;
    path: string[];
}) => Promise<TOutput>;
export type ErrorFactory<E extends Record<string, unknown> = Record<string, unknown>> = string extends keyof E ? {
    [K in keyof E]: (data?: unknown) => never;
} : {
    [K in keyof E]: [InferErrorData<Extract<E[K], ErrorDef>>] extends [never] ? () => never : (data: InferErrorData<Extract<E[K], ErrorDef>>) => never;
};
//# sourceMappingURL=middleware.d.ts.map