Here my latest publication and open-sourced project: building an AWS API for ServiceNow. This is only the first brick but can put you on the right track for more advanced use cases.

aristidebouix.cloud/en/2019/02

Here the steps an need to achieve to your environment as well as some quick .
A best architecture patterns deep dive is yet to come, stay tuned :-) tweet

aristidebouix.cloud/2018/09/pe

mastodon.cloud

Generalistic and moderated instance.