Slonik Driver for pg

``ts
import {
createPgDriverFactory,
DatabaseError,
} from '@slonik/pg-driver';
`

Error handling

All Slonik errors extend from SlonikError. SlonikError uses cause property to store the original error, which might be a DatabaseError from pg. Example:

`ts
pool.on('error', (error) => {
const cause = error.cause;

if (cause instanceof DatabaseError) {
console.log(cause.code);
}
});
`

This allows you to handle errors based on the lower-level error codes provided by pg driver.

Example of handling all errors that could warrant a fatal error:

`ts
const fatalErrorClasses = [
// Connection Exception
'08',
// Invalid Authorization Specification
'28',
];

pool.on('error', (error) => {
if (error.cause instanceof DatabaseError) {
const classCode = error.cause.code.slice(0, 2);

if (fatalErrorClasses.includes(classCode)) {
// Initiate shutdown due to unexpected connection state.
}
}
});
``