@volley/recognition-client-sdk/dist/utils/message-handler.d.ts

Recognition Service TypeScript/Node.js Client SDK

/**
 * Message Handler for Recognition Client
 * Routes incoming WebSocket messages to appropriate callbacks
 */
import { type TranscriptionResultV1, type FunctionCallResultV1, type MetadataResultV1, type ErrorResultV1, type ClientControlMessageV1 } from '@recog/shared-types';
export interface MessageHandlerCallbacks {
    onTranscript: (result: TranscriptionResultV1) => void;
    onFunctionCall: (result: FunctionCallResultV1) => void;
    onMetadata: (metadata: MetadataResultV1) => void;
    onError: (error: ErrorResultV1) => void;
    onControlMessage: (msg: ClientControlMessageV1) => void;
    logger?: (level: 'debug' | 'info' | 'warn' | 'error', message: string, data?: any) => void;
}
export declare class MessageHandler {
    private firstTranscriptTime;
    private sessionStartTime;
    private callbacks;
    constructor(callbacks: MessageHandlerCallbacks);
    /**
     * Set session start time for performance tracking
     */
    setSessionStartTime(time: number): void;
    /**
     * Handle incoming WebSocket message
     */
    handleMessage(msg: {
        v: number;
        type: string;
        data: any;
    }): void;
    /**
     * Handle transcript message and track performance metrics
     * @param result - The transcription result from the server
     */
    private handleTranscription;
    /**
     * Get performance metrics
     */
    getMetrics(): {
        sessionStartTime: number | null;
        firstTranscriptTime: number | null;
        timeToFirstTranscript: number | null;
    };
}
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