How to run n goroutines in golang?

Question

go

I need to break the start-end time interval into 10-hour intervals and run the process (from, to) method in the goroutine for each. That is, depending on the length of the start-end time interval, a different number of goroutines are launched. I do it through errgroup.WithContext(ctx)

Answer 1

To be honest, I didn’t quite understand what the problem is, just run the goroutines in a loop that will have the number of iterations depending on the start-end.

Answer 2

For example like this

//На N промежутков
step:=(end-start)/N
for n := 0; n < N; n++ {
    from := start + n*step
    to := from + step
    group.Go(func() error{ 
         return process(from, to)})
     })
}