How to send Data from a Form on the Store Front to a Private App?

[JoaoM]

Hello.

I want to collect data from a form on my website where the client fills in with his email and send this information to a private app in my store.

Thank you. 

[PaulNewton · Accepted solution]

Send the information over ajax to an url endpoint created in your private app.

Alternatively create a proxy app.

https://shopify.dev/apps/online-store/app-proxies 

[JoaoM]

Sending information from a form like that requires me to sanitize the input(email) on Shopify? If so how sanitization is usually done in Shopify apps. I did not find anything on the documentation regarding that.

If you have some source in mind could suggest some tutorial or blog article demonstrating data being exchanged through a url endpoint from the store-front to the private app (Store Front --> Private App) like we are discussing. I only found the other way around  (Private App --> Store Front) . 

I can't thank you enough for your answer.

[andy-a]

Were you able to find any tutorials on sending the information over ajax to a url endpoint created in your private app? I'm trying to do something similar.

[JoaoM]

Still not.