Any shopify developers? need some help. I want to access shopify store data via API's then should I ask my client to create a private app and then give me access by shareing credentials or should I create shopify collaborator account and then request client to give access to his shopify store so that I can access the data of particular shopify store. Which is more preferred way ? My goal is get data of any shopify store via API's for API;s I need credentials.

Get a developer account access to his store and then take the access keys