Create Endpoint for Sending Emails

[aaronashby]

Overview

We want our donation form to send an automated "Thank You" email after a donation is successfully processed

• For more clarity, you can refer to this article (https://dev.to/aws-builders/aws-ses-with-a-nestjs-backend-to-send-email-verifications-2l9h)
• I would also recommend checking out the Amazon SES documentation (https://docs.aws.amazon.com/ses/)

Tasks

• Create a service for email sending
  • In apps/backend/src, create a new folder emails, make a new file emails.service.ts and create a class within it called EmailsService
  • In this file, add a function sendEmail that takes in the destination email, subject, and email content and uses an SES client to send the email
  • If the send fails for any reason, log a relevant error message to the logger (this.logger.error())
• Create a controller
  • In the same folder, make a new file emails.controller.ts and create a class within it called EmailsController
  • In this file, add a POST request at the emails/send-email endpoint that calls the sendEmail function in the service
• Create a module
  • In the same folder, make a new file emails.module.ts
  • Its controllers array should include the controller created earlier, and its providers array should include the service created earlier
• Create unit tests emails.service.spec.ts
  • Test successful email sending, and an error message being logged in case of a failure

Acceptance Criteria

• SES endpoint follows NestJS dependency injection pattern
• EmailsService successfully sends emails when the endpoint is called
• Code is documented well
• Unit tests pass with mocked SES client