Originally opened as issue and a discussion in the organization repo (probably the wrong locations):

• Issue JS + TS Template Literal Support #20
• Organization-level discussion https://github.com/orgs/supabase/discussions/16286

Hi there 👋 First of all, thanks for all of the effort that Supabase is putting into the PostgreSQL community, including tooling, really amazing 🙌

I recently encountered Postgres Language Server via the recent tweet from @kiwicopple and it looks amazing!

I have been chasing the "holy grail" of tooling for SQL template literals in JavaScript + TypeScript for a while now:

• syntax highlighting (works, with the VS Code extension SQL tagged template literals (syntax only))
• linting (works, using SafeQL)
• formatting, some options
  • prettier-plugin-embed and prettier-plugin-sql - uses sql-formatter
  • kind of works, with eslint-plugin-sql and eslint-plugin-unicorn, but very opinionated / not so configurable - uses pg-formatter
  • @potygen/prettier-plugin-pgsql by @ivank - uses custom Prettier AST formatter

Wasn't even looking for inline documentation yet, but that's a great addition too!

It seems that the plan will be for Postgres Language Server to support all of these use cases, which is amazing!

I would love to have everything handled by one highly-battle-tested tool, which could maybe also deal with some of the shortcomings from the tools listed above.

However, for Postgres Language Server to work for any of our projects, it would need a feature which I'm not sure it currently has (can't tell, from a quick glance at the docs and the code):

• Support for tagged template literals in JavaScript and TypeScript

There is precedent for SQL tagged template literals in JS+TS, some of the more popular ones being:

• Postgres.js
• @vercel/postgres

Eg. I would love for all of the features of Postgres Language Server to be available in the following code block:

import { createClient } from '@vercel/postgres';
 
async function queryPosts() {
 const client = createClient();
 await client.connect();
 
 try {
 const likes = 100;
 const { rows, fields } =
 await client.sql`SELECT * FROM posts WHERE likes > ${likes};`;
 } finally {
 await client.end();
 }
}

Or this code block:

// db.js
import postgres from 'postgres'
const sql = postgres({ /* options */ }) // will use psql environment variables
async function getUsersOver(age) {
 const users = await sql`
 select
 name,
 age
 from users
 where age > ${ age }
 `
 // users = Result [{ name: "Walter", age: 80 }, { name: 'Murray', age: 68 }, ...]
 return users
}
async function insertUser({ name, age }) {
 const users = await sql`
 insert into users
 (name, age)
 values
 (${ name }, ${ age })
 returning name, age
 `
 // users = Result [{ name: "Murray", age: 68 }]
 return users
}