How to develop an module builder for SugarCRM v8?

Hi, I'm planning to develop a module builder to upload in SugarCRM v8 to display values from a third party website. So, in the contact page, the module builder should take the contact's email and search in the third party website using the API request and display the result inside the SugarCRM.

Can someone help me with sample code for v8 module to proceed?

Thanks in advance.