import type { FreshRSSConfig } from '../types/index.js';
/**
 * Handles HTTP communication with the FreshRSS API
 */
export declare class HttpClient {
    private readonly config;
    private auth;
    private feverKey;
    private readonly timeoutMs;
    private readonly maxRetries;
    private readonly retryBaseMs;
    constructor(config: FreshRSSConfig);
    /**
     * Build the API URL for a given endpoint
     */
    private buildUrl;
    private buildFeverUrl;
    private shouldRetry;
    private sleep;
    private retryDelay;
    private readSnippet;
    private request;
    /**
     * Authenticate with FreshRSS
     */
    authenticate(): Promise<void>;
    private extractAuthToken;
    /**
     * Ensure we have a valid auth token
     */
    ensureAuth(): Promise<string>;
    /**
     * Get action token for write operations
     */
    getActionToken(): Promise<string>;
    /**
     * Make an authenticated GET request
     */
    get<T>(endpoint: string, params?: Record<string, string>): Promise<T>;
    /**
     * Make an authenticated GET request that returns raw text (no forced output=json).
     */
    getText(endpoint: string, params?: Record<string, string>): Promise<string>;
    /**
     * Make an authenticated POST request
     */
    post<T>(endpoint: string, body: Record<string, string | string[]>): Promise<T | string>;
    /**
     * POST a raw body to greader endpoints (no action token injected).
     */
    postRaw(endpoint: string, bodyText: string, contentType?: string): Promise<string>;
    private ensureFeverKey;
    /**
     * Make a Fever API POST request.
     */
    postFever<T>(body: Record<string, string>): Promise<T>;
}
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