first commit

internal/helpers/helpers.go

@@ -0,0 +1,29 @@
+package helpers
+
+import (
+	"math/rand"
+	"os"
+	"strconv"
+	"time"
+)
+
+func InLambda() bool {
+	if lambdaTaskRoot := os.Getenv("LAMBDA_TASK_ROOT"); lambdaTaskRoot != "" {
+		return true
+	}
+	return false
+}
+
+func RandomPin() string {
+	min := 100000
+	max := 999999
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	pin := r.Intn(max-min) + min
+	return strconv.Itoa(pin)
+}
+
+func Datetime(timeString string) (time.Time, error) {
+	layout := "2006-01-02T15:04:05.000Z"
+	result, err := time.Parse(layout, timeString)
+	return result, err
+}