Testing Environments

[Mobydick]

Our goal is to create a nightly task in our python back end, in order to create/update contacts in Hubspot. I have created a private app and got the api key, and successfully tested the get list contacts api through postman.
Next step, is to create the automated nightly task in python. We currently have staging, development and production environment to test our infra.
The question is: How can I test the hubspot's contacts apis in a testing environment?

[SAMsan]

Hi @Mobydick 

For this purpose, I created a test account under CRM Development > Sandboxes > Standard.
You can choose what to sync and then create your test app in this account just as you would on production account.

[Mobydick]

Hey @SAMsan , I was also advised to create an App Developer Account and then create a new test account - then create a private app in that portal. How to choose between a Sandbox and the other solution? What is the optimal solution and why?