@datastax/langflow-client/dist/logs.js

A JavaScript client for the Langflow API

import { Log } from "./log.js";
export class Logs {
    client;
    constructor(client) {
        this.client = client;
    }
    async fetch(options) {
        const query = {};
        let signal;
        if (options) {
            Object.entries(options).forEach(([key, value]) => {
                query[key] = value.toString();
            });
            signal = options.signal;
        }
        const headers = new Headers();
        headers.set("Accept", "application/json");
        const response = (await this.client.request({
            path: "/logs",
            method: "GET",
            headers,
            query,
            signal,
        }));
        return Object.entries(response)
            .map(([timestamp, message]) => new Log(timestamp, message))
            .sort((a, b) => a.timestamp.getTime() - b.timestamp.getTime());
    }
    async stream(options) {
        const signal = options?.signal;
        const headers = new Headers();
        headers.set("Accept", "text/event-stream");
        const streamingResponse = await this.client.stream({
            path: "/logs-stream",
            headers,
            method: "GET",
            signal,
        });
        const streamToLog = new TransformStream({
            transform(chunk, controller) {
                Object.entries(chunk).forEach(([timestamp, message]) => {
                    controller.enqueue(new Log(timestamp, message));
                });
            },
        });
        return streamingResponse.pipeThrough(streamToLog, { signal });
    }
}
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