ditto/src/db/KyselyLogger.ts

import { Stickynotes } from '@soapbox/stickynotes';
import { Logger } from 'kysely';
import { dbQueryTimeHistogram } from '@/metrics.ts';

/** Log the SQL for queries. */
export const KyselyLogger: Logger = (event) => {
  if (event.level === 'query') {
    const console = new Stickynotes('ditto:sql');

    const { query, queryDurationMillis } = event;
    const { sql, parameters } = query;

    dbQueryTimeHistogram.observe(queryDurationMillis);

    console.debug(
      sql,
      JSON.stringify(parameters),
      `\x1b[90m(${(queryDurationMillis / 1000).toFixed(2)}s)\x1b[0m`,
    );
  }
};