/**
 * FeltDB HTTP Server
 *
 * Provides HTTP endpoints for FeltDB collection operations including atomic CAS.
 * Can be used as middleware in Express, Hono, or any HTTP framework.
 *
 * Endpoints:
 * - GET /collections/{collection}/{id} - Get a record
 * - POST /collections/{collection} - Insert a record
 * - PATCH /collections/{collection}/{id} - Update a record
 * - POST /collections/{collection}/{id}/cas - Compare-and-set atomic update
 * - DELETE /collections/{collection}/{id} - Delete a record
 *
 * The CAS endpoint preserves atomic semantics across the HTTP boundary by:
 * 1. Receiving expectedVersion and value from client
 * 2. Delegating to Collection.updateIfVersion() inside transaction boundary
 * 3. Returning structured conflict response on version mismatch
 * 4. Ensuring exactly one concurrent writer succeeds on same version
 */
import type { StateFirstDB } from './db.js';
export interface HttpServerOptions {
    db: StateFirstDB;
}
export interface HttpRequest {
    method: string;
    path: string;
    headers: Record<string, string>;
    body?: string;
}
export interface HttpResponse {
    status: number;
    headers: Record<string, string>;
    body: string;
}
/**
 * HTTP Server Request Handler
 *
 * This is a framework-agnostic handler that can be adapted to Express, Hono, etc.
 * Returns {status, headers, body} that can be sent to the client.
 */
export declare function handleHttpRequest(options: HttpServerOptions, request: HttpRequest): Promise<HttpResponse>;
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