Tag

errors

2 posts

Databases

SQLx Error Handling and Unique Violation Detection

Turn a PostgreSQL unique violation into a friendly conflict instead of a 500. Check is_unique_violation on the database error, read the constraint name and map foreign key errors too.

3 min read

Web

Axum Error Handling With IntoResponse and Custom Errors

Make every Axum handler return Result with one AppError enum that implements IntoResponse, so the question mark works and clients get consistent JSON errors.

7 min read