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SafeQL ✨ node-postgres

SafeQL is compatible with node-postgres which is the most popular postgres library in the ecosystem!

PLEASE NOTE

node-postgres doesn't come with a built-in SQL template tag (sql``).

Thus, you'll need to install @ts-safeql/sql-tag in order to use SafeQL with node-postgres.


If you prefer using a different SQL template tag library, that's fine too! see sql-template-strings and sql-template-tag


First, Make sure you've added @ts-safeql/eslint-plugin to your ESLint plugins:

json
// .eslintrc.json
{
  "plugins": [..., "@ts-safeql/eslint-plugin"],
  ...
}

Second, add the following rule to your ESLint config:

json
// .eslintrc.json
{
  // ...
  "rules": {
    // ...
    "@ts-safeql/check-sql": [
      "error",
      {
        "connections": [
          {
            // ...
            "targets": [
              {
                // The name of the wrapper that should be checked:
                "wrapper": "client.query",
              }
            ]
          }
        ]
      }
    ]
  }
}

Lastly, SafeQL will be able to lint your queries like so:

typescript
import { Client } from "pg";

const client = new Client();

// Before
const query = client.query("SELECT idd FROM users");
                                   ~~~ Error: column "idd" does not exist

// After bug fix
const query = client.query("SELECT id FROM users");
              ~~~~~~~~~~~~ Error: Query is missing type annotation

// After: ✅
const query = client.query(sql`SELECT id FROM users`);