Interface KyselyConfig

A list of log levels to log or a custom logger function.

Currently there's only two levels: query and error. This will be expanded based on user feedback later.

Examples

Setting up built-in logging for preferred log levels:

import * as Sqlite from 'better-sqlite3'
import { Kysely, SqliteDialect } from 'kysely'
import type { Database } from 'type-editor' // imaginary module

const db = new Kysely<Database>({
  dialect: new SqliteDialect({
    database: new Sqlite(':memory:'),
  }),
  log: ['query', 'error']
})
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Setting up custom logging:

import * as Sqlite from 'better-sqlite3'
import { Kysely, SqliteDialect } from 'kysely'
import type { Database } from 'type-editor' // imaginary module

const db = new Kysely<Database>({
  dialect: new SqliteDialect({
    database: new Sqlite(':memory:'),
  }),
  log(event): void {
    if (event.level === 'query') {
      console.log(event.query.sql)
      console.log(event.query.parameters)
    }
  }
})
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