How do I handle validation errors in Go?

How do I handle validation errors in Go?

In Go, you can handle validation errors by using the error type. You can create custom error messages and return them when validation fails.

Can you show me an example of custom validation?

Sure! You can define a struct with validation methods. For instance, if you have a User struct, you can add a method to validate the email format.

What if I want to return multiple validation errors?

You can collect errors in a slice and return them all at once. This way, the user can see all validation issues at the same time.

Is there a library that can help with validation?

Yes, libraries like 'go-playground/validator' provide a robust way to handle validation with tags and custom rules.