The current go native time.ParseDuration() does not support any ISO8601 duration strings.
This library parses any ISO8601 duration string into a native Go time.Duration object.
Do you want to parse a full ISO8601 duration? If so, then probably not.
Do you want to parse ISO8601 durations that hardly ever reach '1D' and never reaches a higher duration part (e.g. month)? Then yes, you may want to use this.
Some APIs (for example) provide ISO8601 durations in their response even though the duration never reaches a value higher than a few days.
This project aims for those cases.
How long is a month? How long is a year?
Both, a month and a year, don't really have a hard value as a duration. But this project needs one for them regardless.
Currently a month is hard-coded as 30 days and a year received the duration of 365 days. This is not a perfect solution but will work for use cases where a duration hardly, if ever, reaches those values.
go get github.com/Achsion/iso8601will resolve and add the package to the current development module, along with its dependencies.
package main
import "github.com/Achsion/iso8601/duration"
func main() {
duration, err := duration.ParseToDuration("P1Y1M1DT1H1M1.1S")
}Benchmarks created with
go test -bench=. -benchmem ./durationgoos: linux
goarch: amd64
pkg: github.com/Achsion/iso8601/duration
cpu: AMD Ryzen 7 PRO 5875U with Radeon Graphics
BenchmarkParseToDuration-16 13721776 86.28 ns/op 0 B/op 0 allocs/op
Older versions
goos: linux
goarch: amd64
pkg: github.com/Achsion/iso8601/duration
cpu: AMD Ryzen 7 PRO 5875U with Radeon Graphics
BenchmarkParseToDuration-16 13843465 85.54 ns/op 0 B/op 0 allocs/op
goos: linux
goarch: amd64
pkg: github.com/Achsion/iso8601/duration
cpu: AMD Ryzen 7 PRO 5875U with Radeon Graphics
BenchmarkParseToDuration-16 878901 1154 ns/op 1655 B/op 4 allocs/op