Check radius AWS Lambda

georadius-checker.go

...
func IsInsideRadius(aLatitude float64, aLongitude float64, bLatitude float64, bLongitude float64, radius int) bool {
	diffLongitudeRadians := toRadians(bLongitude - aLongitude)
	aLatitudeRadians := toRadians(aLatitude)
	bLatitudeRadians := toRadians(bLatitude)
	difference := math.Acos(math.Sin(aLatitudeRadians)*math.Sin(bLatitudeRadians)+math.Cos(aLatitudeRadians)*math.Cos(bLatitudeRadians)*math.Cos(diffLongitudeRadians)) * slcRadius
	return difference <= float64(radius)
}
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