multierr allows combining one or more Go errors together.

• 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.