Comment by Mario Giambanco on "Server-side validation for angular?"

CommentServer-side validation for angular?

Mario Giambanco

Director of User Experience Development

Oct 20, 2016

The question is kinda confusing without knowing what your using as your backend and even without that, is very open ended.

Most every form field will have different validation needs as most forms would have different purposes.

What ever language you use for your backend should be able to handle validation - be it PHP, or NodeJS or ASP.net or Ruby or etc... For sure you could use 3rd party modules or packages to validate fields but again, this is based on need and again, without knowing which backend you use, is hard to answer.

What tools or practices have you used to manage server-side validation in you angular applications?

Whatever it takes. If it's an email field, I'll use an email regex string. If it's a textarea, I'll just make sure it's not empty and > 1 character. If it's supposed to be just a number field, something like is_numeric() in php works fine. Depends on the form.

Cyrus Boadway

What do I do?

Oct 21, 2016

I suppose I wasn't clear enough. The question is how to manage and apply field validations that have been determined on the backend. e.g. the backend (whatever lang.) decides that field X has violated some rule, that rule is passed back to the front end (perhaps in a JSON body on an HTTP 403 or 409). How do you display those violations? What tools do you use to manage those responses and render them? Perhaps injecting into ng-messages...

Anyway you want - return { error: true, error_message: "Email verification failed" } and ng-show or ng-hide on an alert, checking the error - or use a toaster, or ng-messages, or whatever. These are the mysteries of programming; people build the tools and libraries, you decide what to use and how! :)

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