@pulzar/core/dist/events/adapters/nats.d.ts

Next-generation Node.js framework for ultra-fast web applications with zero-reflection DI, GraphQL, WebSockets, events, and edge runtime support

import { EventAdapter, EventEnvelope, EventHandler, SubscribeOptions, SubscriptionHandle, AdapterStats, AdapterCapabilities, PublishResult, HealthStatus } from "../types";
interface NATSConfig {
    servers?: string | string[];
    user?: string;
    pass?: string;
    token?: string;
    nkey?: string;
    jwt?: string;
    seed?: string;
    timeout?: number;
    reconnect?: boolean;
    maxReconnectAttempts?: number;
    reconnectTimeWait?: number;
    jetstream?: {
        enabled: boolean;
        domain?: string;
        apiPrefix?: string;
        timeout?: number;
    };
}
export declare class NATSEventAdapter implements EventAdapter {
    readonly name = "nats";
    readonly version = "1.0.0";
    readonly capabilities: AdapterCapabilities;
    private client;
    private jetStream;
    private jetStreamManager;
    private config;
    private connected;
    private subscriptions;
    private stats;
    constructor(config?: NATSConfig);
    /**
     * Connect to NATS server
     */
    connect(): Promise<void>;
    /**
     * Disconnect from NATS
     */
    disconnect(): Promise<void>;
    /**
     * Check if connected
     */
    isConnected(): boolean;
    /**
     * Publish event to NATS/JetStream
     */
    publish(subject: string, event: EventEnvelope): Promise<PublishResult>;
    /**
     * Subscribe to events
     */
    subscribe(subject: string, handler: EventHandler, options?: SubscribeOptions): Promise<SubscriptionHandle>;
    /**
     * Unsubscribe from events
     */
    unsubscribe(handle: SubscriptionHandle): Promise<void>;
    /**
     * Acknowledge message
     */
    ack(event: EventEnvelope): Promise<void>;
    /**
     * Negative acknowledge message
     */
    nack(event: EventEnvelope, requeue?: boolean): Promise<void>;
    /**
     * Flush pending messages
     */
    flush(): Promise<void>;
    /**
     * Get adapter statistics
     */
    getStats(): Promise<AdapterStats>;
    /**
     * Health check
     */
    healthCheck(): Promise<HealthStatus>;
    /**
     * Create JetStream consumer
     */
    private createJetStreamConsumer;
    /**
     * Handle incoming message
     */
    private handleMessage;
    /**
     * Ensure stream exists
     */
    private ensureStream;
    /**
     * Get stream name from subject
     */
    private getStreamName;
    /**
     * Create NATS headers
     */
    private createHeaders;
    /**
     * Serialize event for transmission
     */
    private serialize;
    /**
     * Deserialize received message
     */
    private deserialize;
    /**
     * Setup connection event handlers
     */
    private setupEventHandlers;
    /**
     * Try to import NATS package
     */
    private importNATS;
    /**
     * Update statistics
     */
    private updateStats;
    /**
     * Reset statistics
     */
    private resetStats;
    /**
     * Generate unique ID
     */
    private generateId;
}
export default NATSEventAdapter;
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