How do I handle errors in asyncpg?

How do I handle errors in asyncpg?

In asyncpg, you can handle errors using try-except blocks. For example, wrap your database calls in a try block and catch specific exceptions.

What specific exceptions should I catch?

You should catch exceptions like asyncpg.exceptions.UniqueViolationError for unique constraint violations and asyncpg.exceptions.ForeignKeyViolationError for foreign key issues.

Can you give me a code example?

Sure! Here's a simple example:

try:
    await connection.execute('INSERT INTO users (id) VALUES ($1)', user_id)
except asyncpg.exceptions.UniqueViolationError:
    print('User ID already exists.')

What about connection errors?

For connection errors, you can catch asyncpg.exceptions.CannotConnectNowError to handle cases where the database is unreachable.