Controlling required field constraints

FJP H

Hi there,

Trying out Xano with Bubble by creating a simple Invoicing tool just for fun and learning experiences.

Goal is to not store any data in Bubble.

Process is as follows:
- Button Add Invoice > Post create invoice (container) in state: initial witch only an invoice number.
- fill In additional invoice info 
- Add Invoice line and after submit Post Invoice line to Camp and save invoice line and link to invoice
- Save invoice, PUT all additional information to Xano. Update state to complete

Upon Save I would be able to besides having the front-end checking on required fields, I can do the same at backend side in Xano?

Is it possible to define and check upon required fields in Xano?

Ray Deck

Sure. Xano has some nice built-in validators in the inputs section - check out the filters in particular. For additional validation logic, use the function stack to perform additional tests, and apply a "precondition" utility function to bounce back with an error code when it's not quite right. 

The endpoints come with a single query statement in the function stack by default. But that's neither required nor best practice - use the function stack to apply logic that makes sense for your use case!

Chris Coleman

Hey there! You can definitely do that in Xano. You can either specify filters in your database in Xano, or on the inputs / in the function stack of your endpoint!