@directus/api/dist/logger/logs-stream.js

Directus is a real-time API and App dashboard for managing SQL database content

import { nanoid } from 'nanoid';
import { Writable } from 'stream';
import { useBus } from '../bus/index.js';
const nodeId = nanoid(8);
export class LogsStream extends Writable {
    messenger;
    pretty;
    constructor(pretty) {
        super({ objectMode: true });
        this.messenger = useBus();
        this.pretty = pretty;
    }
    _write(chunk, _encoding, callback) {
        if (!this.pretty) {
            // keeping this string interpolation for performance on RAW logs
            this.messenger.publish('logs', `{"log":${chunk},"nodeId":"${nodeId}"}`);
            return callback();
        }
        const log = JSON.parse(chunk);
        if (this.pretty === 'http' && log.req?.method && log.req?.url && log.res?.statusCode && log.responseTime) {
            this.messenger.publish('logs', JSON.stringify({
                log: {
                    level: log['level'],
                    time: log['time'],
                    msg: `${log.req.method} ${log.req.url} ${log.res.statusCode} ${log.responseTime}ms`,
                },
                nodeId: nodeId,
            }));
            return callback();
        }
        this.messenger.publish('logs', JSON.stringify({
            log: {
                level: log['level'],
                time: log['time'],
                msg: log['msg'],
            },
            nodeId: nodeId,
        }));
        callback();
    }
}