/**
 * Middleware Extractor
 *
 * Detects middleware usage in server-side source files across multiple
 * frameworks: Express, Hono, Fastify, NestJS, Next.js.
 *
 * Detection is purely regex-based — no AST parsing required.
 */
export type MiddlewareType = 'auth' | 'rate-limit' | 'cors' | 'validation' | 'logging' | 'error-handler' | 'custom';
export interface MiddlewareEntry {
    /** Broad middleware category */
    type: MiddlewareType;
    /** Framework that owns this middleware */
    framework: string;
    /** Relative path from rootDir */
    file: string;
    /** 1-based source line */
    line: number;
    /** Function/middleware name if detectable */
    name: string;
}
/**
 * Extract middleware entries from a list of source files.
 *
 * @param filePaths - Absolute paths to source files
 * @param rootDir   - Project root for computing relative paths
 */
export declare function extractMiddleware(filePaths: string[], rootDir: string): Promise<MiddlewareEntry[]>;
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