Learn how to send notifications through ESP32 over BLE using the nimBLE stack of ESP-IDF in this easy-to-understand tutorial.
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How to downsize your RDS PostgreSQL instance
Have an RDS instance with provisioned storage much beyond what is required? Learn how to cut down on the storage and pay only for what you use.
Cognito Authorizer for API Gateway – Access Token based
Learn how to create an access-token based Cognito Authorizer in API Gateway. The default Cognito Authorizers are ID token based.
Custom HTTPS domain on Elastic Beanstalk with Route53
Need https://server.mycompany.com to point to your Elastic Beanstalk environment? Here’s the right tutorial for you, using Route53, ACM and Elastic Beanstalk.
How to handle promise rejections in Async Await
A promise in JavaScript can be resolved if the code execution completed as expected, or it can be rejected if there are any errors. When using async await, you may be awaiting a promise, but if something goes wrong, then you may get an ‘Unhandled Promise Rejection’ error. This happens because each promise rejection needs… Continue reading How to handle promise rejections in Async Await
A beginner’s guide to Cloud Computing
Curious about the hype surrounding platforms like Amazon Web Services (AWS), Microsoft Azure or Google Cloud Platform (GCP)? Read on to find out.
A beginner’s guide to ESP32
It is quite likely that you’ve heard of ESP32, especially if you are into IoT. Ever wondered what the hype is all about? Then this is the article for you.
AWS IoT remove a Retained Message
Learn how to remove a retained message from AWS IoT Core using the AWS IoT MQTT Test Client (Console) and also programmatically using nodejs.
AWS Lambda Function URLs
In April 2022, AWS made a powerful addition to Lambda: Function URLs. Learn all about them in this post, from enablement to configuration and best practices.
Sending non-English text via HTTP in NodeJS
Have non-English characters (Hindi, Japanese, etc.) in your HTTP request body in Nodejs? Chances are that your requests are failing. Here’s the fix.