import { SDKConfig } from "./Config";
/**
 * HTTP client aligned with Adhere backend contract.
 *
 * Two auth modes:
 *  - request()         → Authorization: Bearer <apiKey>        (session creation)
 *  - sessionRequest()  → x-access-token: <sessionToken>        (all other endpoints)
 *  - uploadWithSession() → multipart + x-access-token          (file uploads)
 */
export declare class HttpClient {
    private baseUrl;
    private apiKey;
    private timeout;
    private sessionToken;
    constructor(config: SDKConfig);
    setSessionToken(token: string): void;
    /**
     * API-key authenticated request (used for session creation only).
     * Header: Authorization: Bearer <apiKey>
     */
    request<T>(method: string, path: string, body?: unknown): Promise<T>;
    /**
     * Session-token authenticated request (used for all endpoints after session creation).
     * Header: x-access-token: <sessionToken>
     */
    sessionRequest<T>(method: string, path: string, body?: unknown): Promise<T>;
    /**
     * Multipart file upload with session-token auth.
     * Header: x-access-token: <sessionToken>
     * NOTE: Do NOT set Content-Type — browser sets it with boundary automatically.
     */
    uploadWithSession<T>(path: string, formData: FormData): Promise<T>;
    /**
     * GET for endpoints that work without auth (status polling still works after
     * session revoke) but return additional fields when a live session token is
     * presented — e.g. sdk-result/ only includes OCR/PII fields for the session
     * that owns the entry. Attaches the token opportunistically when we still
     * have one; the backend falls back to the public (non-PII) response if it's
     * missing, invalid, or already revoked.
     */
    publicGet<T>(path: string): Promise<T>;
    /**
     * Legacy upload with API key (kept for backward compatibility if needed).
     */
    upload<T>(path: string, formData: FormData): Promise<T>;
    private requireToken;
    private _fetch;
}
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