Overview

Short for "Go Types". Important data types missing from the Go standard library. Tiny and dependency-free.

• NullDate: civil date without time, where zero value is empty/null.
• NullTime: time where zero value is empty/null.
• Interval: ISO 8601 duration, corresponds to Postgres interval.
• NullInterval: interval where zero value is empty/null.
• Uuid: simple implementation of UUID version 4.
• NullUuid: UUID where zero value is empty/null.
• NullInt: int where zero value is empty/null.
• NullUint: uint where zero value is empty/null.
• NullFloat: float where zero value is empty/null.
• NullUrl: actually usable variant of url.URL, used by value rather than pointer, where zero value is empty/null.
• Ter: nullable boolean (ternary), more usable and efficient than either *bool or sql.NullBool.

API docs: https://pkg.go.dev/github.com/mitranim/gt

Important features:

All types implement all relevant encoding/decoding interfaces for text, JSON, and SQL. Types can be seamlessly used for database fields, JSON fields, and so on, without the need for manual conversions.

All "nullable" gt types are type aliases of "normal" types, where the zero value is considered "null". This eliminates some invalid states at the type system level.

For example, for nullable DB enums, gt.NullString is a better choice than *string or sql.NullString, because it doesn't have the often-invalid state of non-null "". Eliminating invalid states eliminates bugs. Similarly, gt.NullTime is a better choice than time.Time, *time.Time or sql.NullTime. It avoids the hassle of pointers or manual JSON conversions, while preventing your from accidentally inserting 0001-01-01.

License

https://unlicense.org

Misc

I'm receptive to suggestions. If this library almost satisfies you but needs changes, open an issue or chat me up. Contacts: https://mitranim.com/#contacts