Generate csv

main.go

package main

import (
	"bufio"
	"fmt"
	"math/rand"
	"os"
	"time"

	"github.com/icrowley/fake"
)

func main() {
	N := 20000
	fmt.Println("creating fake data")
	f, err := os.Create("dummy.csv")
	if err != nil {
		fmt.Println(err)
		return
	}

	w := bufio.NewWriter(f)
	for i := 1; i <= N; i++ {
		fname := fake.FirstName()
		month := rand.Intn(12) + 1
		day := rand.Intn(27) + 1
		startDate := time.Date(2018, time.Month(month), day, 0, 0, 0, 0, time.UTC)
		duration := time.Hour * 24 * time.Duration(rand.Intn(4)+1)
		FinishDate := startDate.Add(duration)
		fmt.Fprintf(w, "%d,%s,%s,%s\n", i, fname, startDate.Format("2006-01-02"), FinishDate.Format("2006-01-02"))
	}
	w.Flush()
	f.Close()
}