Log the query?

Hey, is there a way to log the generated query?

I tried this but it did not printed out the queries.

export const db = new Kysely<ModelTypeMap>({
  dialect: new PostgresDialect({
    host: "localhost",
    database: "postgres",
    password: "postgres",
    user: "postgres",
    log: (message) => {
      console.info(message);
    },
  }),
});

// Output

/*
checking client timeout
connecting new client
new client connected
pulse queue
no queued requests
[
  {
    id: 2,
    slug: 'a',
    name: 'a',
    last_updated: 2021-11-29T11:51:27.581Z,
    thumbnail_url: 'aa',
    default_source: 'a',
    status: 'ENABLED'
  }
]
remove idle client
*/

[koskimas]

@AzSiAz 0.11.3 now supports a custom logger function:

const db = new Kysely<Database>({
  dialect: new PostgresDialect(postgresConfig),
  log(event) {
    if (event.level === 'query') {
      console.log(event.query.sql)
      console.log(event.query.parameters)
    }
  }
})

[koskimas]

There’s currently no built-in way to log queries in Kysely. The parameters the PostgresDialect takes are passed directly to the pg module.

You can get the compiled sql like this for any query:

const sql = db
  .selectFrom('foo')
  .where(...)
  .orderBy(...)
  .selectAll()
  .compile()

console.log(sql)

I’ll add an easier way to debug queries soon.