Thanks my reward and congrats for the participants, great articles!

COS language don't have null type, so null is converted to "". It is possible set a parameter, see: 

parameter %JSONNULL;

If %JSONNULL is true (=1), then unspecified properties are exported as the null value. Otherwise the field corresponding to the property is just skipped during export.

See it: https://community.intersystems.com/post/set-null#comment-138976

I am very happy to inspire you. Great syllabus, congrats!

I suggest include one topic, automl.

Thanks!

Great article!

Congrats for all winners. Mr. Cemper help me a lot with my apps quality. Thanks for this.

Vote Community! Vote, please! We have to support our dev community!

I claim more 2 points (security mediator) for my new article https://community.intersystems.com/post/objectscript-rest-api-cookbook

In the expert vote, how many points are computed for each expert's vote?

I request bonus to the use of basic auth, my app is REST API that's requires basic auth. If you access my app online, you have to inform user and password. (http://ymservices.tech:52773/crud/). Evidence: https://github.com/yurimarx/iris-api-security-mediator/blob/a3fa1863cd8318ace38d554ef3956694e6b28ef4/module.xml#L21

I request bonus to use Audit into the app SecurityMediator. Evidence: https://github.com/yurimarx/iris-api-security-mediator/blob/a3fa1863cd8318ace38d554ef3956694e6b28ef4/src/dc/SecurityMediator/SecurityMediator.cls#L66

I request bonus to online app (SecurityMediator)

http://ymservices.tech:52773/crud/

Did you created ssl config into management portal?

I claim 2 points to security mediator, because the article https://pt.community.intersystems.com/post/o-poder-do-xdata-aplicado-%C3...

I claim 2 points to audit mediator app, because the article https://pt.community.intersystems.com/post/aproveitando-o-banco-de-dados...

Thanks Cemper, your reviews and tips help me to do better apps