How can I implement schema validation in Go?

How can I implement schema validation in Go?

You can use libraries like 'go-playground/validator' or 'gopkg.in/yaml.v2' for schema validation in Go.

Can you show me a simple example using 'go-playground/validator'?

Sure! First, install the package with go get github.com/go-playground/validator/v10. Then, you can define a struct and validate it like this:

package main

import (
	"fmt"
	"github.com/go-playground/validator/v10"
)

type User struct {
	Name  string `validate:"required"`
	Email string `validate:"required,email"`
}

func main() {
	validate := validator.New()
	user := User{Name: "", Email: "invalid-email"}
	err := validate.Struct(user)
	if err != nil {
		fmt.Println(err)
	}
}

What happens if the validation fails?

If the validation fails, the validate.Struct(user) call will return an error containing details about which fields are invalid.

Are there any other libraries for schema validation in Go?

Yes, you can also explore 'gojsonschema' for JSON schema validation or 'gopkg.in/go-playground/validator.v9' for more advanced features.