How to deliver single & batch messages to a specified Amazon SQS Queue in Swift

SQS.swift

import AWSSQS

class SQS {
    func send(_ model: Encodable, to queueURL: String) -> () {
        
        guard let messageString = model.jsonString() else { return }
        let sqs = AWSSQS.default()
        let sendMsgRequest = AWSSQSSendMessageRequest()
        sendMsgRequest?.queueUrl = queueURL
        sendMsgRequest?.messageBody = messageString
        sqs.sendMessage(sendMsgRequest!) { (result, err) in
            if let result = result {
                print("Successfully sent (1) message. SQS messageId: \(String(describing: result.messageId)) , \(String(describing: model.jsonString()))")
            }
            if let err = err {
                print("SQS sendMessage error: \(err)")
            }
        }
    }
}