Create an Apex Class

Create an Apex class to send an email with attachment to the user who requests insurance proof.

1. Click Setup, and then click Developer Console.
2. Create an Apex class.

   Example: To send an email with attachment to the user who requests insurance proof, use a script like this:

   /*************************
   * @Class Name:- FSCInsServiceProcessSendEmail
   * @Description:- This apex class contains an invocable method used to send email along with attachment
   **************************/
   global with sharing class FSCInsServiceProcessSendEmail {
   // Method to send email along with attachment and reurns either Success or Failure back to flow output variable
   @InvocableMethod(label='Send Email to user with attachment' description='Sends email to user from apex ')
   public static List<String> sendEmail(List<Requests> request) {
   List<Messaging.SingleEmailMessage> mails = new List<Messaging.SingleEmailMessage>();
   Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
   List<String> response = new List<String>();
   List<String> sendTo = new List<String> {request[0].sendToEmailId};
   mail.setToAddresses(sendTo);
   mail.setSubject(request[0].emailSubject);
   mail.setHtmlBody(request[0].textTemplate);
   //Fetch attachment id associated to the caseId and append it to email as attachments
   List<Attachment> attList = new List<Attachment> ([SELECT Id, Name FROM Attachment WHERE parentId =: request[0].caseId WITH SECURITY_ENFORCED]);
   if (attList.size() > 0) {
   List<String> attachmentIds = new List<String> {attList[0].Id};
   mail.setEntityAttachments(attachmentIds);
   }
   // Add email to the master list
   mails.add(mail);
   //Send all emails in the master list
   Messaging.SendEmailResult[] results = Messaging.sendEmail(mails);
   if (results[0].success) {
   response.add('Success');
   } else {
   response.add('Failed to send email');
   }
   return response;
   }
   
   //set of invocable variables which is used to set values from flow
   global class Requests {
   @InvocableVariable(label='Email Body' description='Text template of email body')
   global String textTemplate;
   @InvocableVariable(label='Send To Email Id' description='Email id of recipient')
   global String sendToEmailId;
   @InvocableVariable(label='CaseId' description='Case Id associated with attachment')
   global String caseId;
   @InvocableVariable(label='Email Subject' description='Email subject')
   global String emailSubject;
   }
   }