multierr

multierr allows combining one or more Go errors together.

Features

Idiomatic: multierr follows best practices in Go, and keeps your code idiomatic.
- It keeps the underlying error type hidden, allowing you to deal in error values exclusively.
- It provides APIs to safely append into an error from a defer statement.
Performant: multierr is optimized for performance:
- It avoids allocations where possible.
- It utilizes slice resizing semantics to optimize common cases like appending into the same error object from a loop.
Interoperable: multierr interoperates with the Go standard library's error APIs seamlessly:
- The errors.Is and errors.As functions just work.
Lightweight: multierr comes with virtually no dependencies.

go get -u go.uber.org/multierr@latest

Stable: No breaking changes will be made before 2.0.

Released under the MIT License.