@slonik/pg-driver
v46.2.0
Published
A Node.js PostgreSQL client with strict types, detailed logging and assertions.
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Slonik Driver for pg
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:
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:
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.
}
}
});