How can I implement async validation in Vue.js?

How can I implement async validation in Vue.js?

You can implement async validation in Vue.js by using the async and await keywords in your validation methods.

Can you show me a code example?

Sure! Here's a simple example:

methods: {
  async validateEmail(email) {
    const response = await fetch(`/api/validate-email?email=${email}`);
    const data = await response.json();
    return data.isValid;
  }
}

How do I integrate this with Vuelidate?

You can integrate it by using a custom validator in Vuelidate. Here's how:

validations: {
  email: {
    required,
    asyncEmail: this.validateEmail
  }
}

What if I want to show a loading indicator during validation?

You can use a data property to track the loading state and display a spinner while the validation is in progress.