ThomasAlxDmy

// Server
func S3signatureGeneration() string{
	now := time.Now().UTC()
	policyDate, dateStamp := now.Format(ISO8601BasicFormat), now.Format(ISO8601BasicFormatShort)
	expirationTime := now.Add(uploadValidity + 5*time.Minute).Format(ISO8601)

	allowedPath := "test/"
	credential := XAMZCredential(awsAccessKeyID, dateStamp, awsRegion)
	str := "{ \"expiration\": \"%s\",\"conditions\": [{\"bucket\": \"%s\"},[\"starts-with\", \"$key\", \"%s\"],{\"acl\": \"%s\"},{\"x-amz-credential\": \"%s\"},{\"x-amz-algorithm\": \"AWS4-HMAC-SHA256\"},{\"x-amz-date\": \"%s\" }]}"
	finalStr := fmt.Sprintf(str, expirationTime, awsBucket, allowedPath, acl, credential, policyDate)