Gravatar – Reusable Lightning Web Component Apex Controller

GravatarController.cls

/**
 * @Author  Jitendra Zaa
 * @Date    1 May 2020
 * @Desc    Server Side class for Gravatar LWC component to compute Md5 equivalent of email address
 */
public with sharing class GravatarController {
    @AuraEnabled(cacheable=true)
    public static String getMD5Hash(String email){
        if(String.isEmpty(email)){
            email = '[email protected]';
        }
        Blob emailBlob = Blob.valueOf(email);
        Blob hash = Crypto.generateDigest('MD5', emailBlob);
        return EncodingUtil.convertToHex(hash);
    }
}