Should use PostgresJS driver type

[Sleepful]

kysely-postgres-js/src/types.ts

Line 3 in 30fd344

export interface PostgresJSDialectConfig {

this is using Sql from the npm postgres package: https://github.com/kysely-org/kysely-postgres-js/blob/main/package.json#L39

it should instead use Sql from the postgresJS package: https://github.com/porsager/postgres/blob/master/types/index.d.ts#L660C19-L660C56

Currently I am getting a type error because it tells me that my postgresConnection = postgres(...) is not allowed:

import { PostgresJSDialect, PostgresJSDialectConfig } from "kysely-postgres-js";

const databaseConfig: PostgresJSDialectConfig = {
  postgres: postgresConnection, // gives me TS error
};

You can see here that it is getting the TYPE from the NPMJS registry for POSTGRES, instead of using POSGRESJS driver

Type 'import("https://deno.land/x/[email protected]/types/index").Sql<{}>' is not assignable to type 'import("file:///Users/jose/Library/Caches/deno/npm/registry.npmjs.org/postgres/3.4.4/types/index").Sql<{}>'. Types of property 'types' are incompatible. Type '(<T>(value: T, oid: number) => import("https://deno.land/x/[email protected]/types/index").Parameter<T>) & {}' is not assignable to type '(<T>(value: T, oid: number) => import("file:///Users/jose/Library/Caches/deno/npm/registry.npmjs.org/postgres/3.4.4/types/index").Parameter<T>) & {}'. Type '(<T>(value: T, oid: number) => Parameter<T>) & {}' is not assignable to type '<T>(value: T, oid: number) => Parameter<T>'. Property '[PRIVATE]' is missing in type 'import("https://deno.land/x/[email protected]/types/index").Parameter<T>' but required in type 'import("file:///Users/jose/Library/Caches/deno/npm/registry.npmjs.org/postgres/3.4.4/types/index").Parameter<T>'.

[igalklebanov]

Hey 👋

I'll need a reproduction repo.

[Sleepful]

Good point, I will get back to you later!

[Thaigun]

Hi! I run into the same issue when trying to setup Deno + Kysely + Postges. I can make a minimal reproduction if that helps.

[Thaigun]

Install Deno, clone this repo and run deno check . to see the problem.

https://github.com/Thaigun/kysely-postgres-repro

I tried adding import-map.json but couldn't figure out a working configuration. Everything works though and I could run my migrations, just the type checks fail.

Edit:
If, in deno.json imports I import "postgres": "npm:postgres@^3.4.5" instead of "postgres": "https://deno.land/x/postgresjs/mod.js" I get rid of the type check problem and the little functionality I have so far also works. No idea if that will cause any issues at any point.