joi validation for Boolean value

https://stackoverflow.com/questions/33019936/using-joi-validating-that-a-boolean-is-true

Joi.validate(false, schema);
Joi.validate('false', schema);
Joi.validate('no', schema);
Joi.validate('off', schema);
Joi.validate(0, schema);

joi npm validation link

https://www.npmjs.com/package/joi

multipale file upload in node js

https://codeforgeek.com/2016/01/multiple-file-upload-node-js/

https://codeforgeek.com/2016/01/multiple-file-upload-node-js/

foreach map reduce use case

https://medium.com/@RhinoDavid/processing-javascript-arrays-with-foreach-map-reduce-bf40d1e5eac4

was cli credential setting

https://docs.aws.amazon.com/cli/latest/userguide/cli-config-files.html

step 1.~/.aws

step 2.~/.aws/credentials

cross enable in node js

https://stackoverflow.com/questions/11181546/how-to-enable-cross-origin-resource-sharing-cors-in-the-express-js-framework-o

lambda tester module

https://www.npmjs.com/package/lambda-tester