/**
 * Join Campaign Service
 * Allows a user to join/participate in a campaign
 */
import type { ServiceOptions } from '@plyaz/types/api';
import type { EndpointsList } from '@/api/endpoints';
import type { FetchResponse } from 'fetchff';
/**
 * Join a campaign
 * Uses endpoint: POST /campaigns/:id/join
 *
 * @param campaignId - The campaign ID to join
 * @param options - Optional service options (client override, config overrides)
 * @returns Promise<CampaignJoinResponse> - Join confirmation with participant details
 *
 * @example
 * ```typescript
 * // Basic usage
 * const result = await joinCampaign('camp-123');
 * // Returns: { success: true, participantId: '...', joinedAt: '...' }
 *
 * // With custom config
 * const result = await joinCampaign('camp-123', {
 *   apiConfig: { timeout: 10000 }
 * });
 * ```
 *
 * @throws {ApiPackageError} When the request fails or user is already a participant
 */
export declare function joinCampaign<TEndpoints = EndpointsList>(campaignId: string, options?: ServiceOptions<TEndpoints>): Promise<FetchResponse>;
//# sourceMappingURL=joinCampaign.d.ts.map