Prestashop Webservice API - How to check if customer exists when creating new?

[peterjsnow]

I am creating a third party application which allows customers to register new accounts on our site using the prestashop webservice API. However, I obviously don't want to let them register if they have already created an account with a particular email address.

 

I'm wondering what the best way to check if the customers email is already in the system would be? We have over 10k accounts so I feel that simply getting the customers list via the API and checking against that would be a very slow solution. Is there a better way?

 

Thanks in advance!

[peterjsnow]

Thanks for the reply! I get the concept of what you're saying, but I'm not sure how you'd go about searching for email specifically using a HEAD request?