How can I implement async validation in Angular Formly?

How can I implement async validation in Angular Formly?

You can implement async validation in Angular Formly by using the asyncValidator property in your field configuration.

Can you give me an example of how to set that up?

Sure! You can define an async validator like this: asyncValidator: myAsyncValidatorFunction in your field configuration.

What should my async validator function look like?

Your async validator function should return an observable that emits either null (valid) or an error object (invalid). Here's a simple example.

Thanks! Is there a way to show loading indicators during validation?

Yes, you can use the async pipe in your template to show loading indicators while the validation is in progress.