What are the best practices for validation in Go?

What are the best practices for validation in Go?

Some best practices include using the built-in 'validator' package, struct tags for validation rules, and custom validation functions.

Can you give me an example of using struct tags for validation?

Sure! You can define a struct like this: type User struct { Name string validate:"required"Age intvalidate:"gte=0" }.

What about handling validation errors?

You can use the validator package to return detailed error messages, which can be accessed through the Validate.Struct() method.

Are there any performance considerations I should be aware of?

Yes, avoid excessive validation checks and consider caching validation results for performance-critical applications.