AWS SNS - simple notification service or sent otp on mobile

https://sean-bradley.medium.com/create-an-sms-api-in-5-minutes-with-aws-sns-and-nodejs-c66f6cd4af07

https://medium.com/@pkthakur01/sending-text-sms-using-aws-sns-in-node-js-d83d0764120e

https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/SNS.html#constructor-property