Types & Config

Error Handling

Typed error classes that wrap native IndexedDB DOMExceptions.

Error hierarchy

All errors extend the base IDBError class, which wraps native DOMException errors with better messages and context.

Name	Type	Description
`IDBError`	`base`	Base error — any unrecognized IndexedDB error
`IDBNotFoundError`	`extends IDBError`	Store or index not found
`IDBConstraintError`	`extends IDBError`	Unique constraint violated (duplicate key)
`IDBVersionError`	`extends IDBError`	Version mismatch or downgrade attempted
`IDBAbortError`	`extends IDBError`	Transaction was aborted
`IDBTimeoutError`	`extends IDBError`	Operation timed out

error-handling.ts

Name	Type	Description
`message`	`string`	Human-readable error message with context
`cause`	`DOMException \| undefined`	The original native DOMException
`name`	`string`	Error class name (e.g. "IDBConstraintError")

IDBConstraintError also has a .key property, and IDBNotFoundError has a .storeName property.