How to create a date range in the format of YYYY-MM-DD from start to end in Golang?

Let's say our inputs are start_date=2022-01-01 and end_date=2022-01-05. How I can get an input like below:

2022-01-01
2022-01-02
2022-01-03
2022-01-04

I'm able to parse start and end using time.Parse and get the days in between using .Sub and then iterating over the range and create string dates.
I was wondering if there is any method or better solution for date range creation in Go?

You can use:

const (
	layout = "2006-01-02"
)

func main() {
	startDate, _ := time.Parse(layout, "2022-01-01")
	endDate, _ := time.Parse(layout, "2022-01-05")

	for date := startDate; date.Before(endDate); date = date.AddDate(0, 0, 1) {
		fmt.Println(date.Format(layout))
	}
}

This will give you:

2022-01-01
2022-01-02
2022-01-03
2022-01-04

Full example

Go doesn’t use yyyy-mm-dd layout to format a time. Instead, you format a special layout parameter

Mon Jan 2 15:04:05 MST 2006

the same way as the time or date should be formatted. (This date is easier to remember when written as 01/02 03:04:05PM ‘06 -0700.)

const (
	layoutISO = "2006-01-02"
	layoutUS  = "January 2, 2006"
)
date := "1999-12-31"
t, _ := time.Parse(layoutISO, date)
fmt.Println(t)                  // 1999-12-31 00:00:00 +0000 UTC
fmt.Println(t.Format(layoutUS)) // December 31, 1999

The function

• time.Parse parses a date string, and

• Format formats a time.Time.

They have the following signatures:

 func Parse(layout, value string) (Time, error)
  func (t Time) Format(layout string) string

you can use this for date range

const (
	layoutISO = "2006-01-02"
	layoutUS  = "January 2, 2006"
)

func main() {
	date := "1999-12-31"
	t, _ := time.Parse(layoutISO, date)
	fmt.Println(t)                  // 1999-12-31 00:00:00 +0000 UTC
	fmt.Println(t.Format(layoutUS)) // December 31, 1999
	
	
	startDate, _ := time.Parse(layoutISO, "2022-01-01")
	endDate, _ := time.Parse(layoutISO, "2022-01-05")
	for date := startDate; date.Before(endDate); date = date.AddDate(0, 0, 1) {
		fmt.Println(date.Format(layoutISO))
	}

}