Feat/postman

[gweiying]

Solution

Implemented Postman fallback mailer.

Notes

Postman fallback mailer will only be activated if env variable ACTIVATE_POSTMAN_FALLBACK is set to true. If not, it should still use the default SES email transport.

Tests

• add env variables to Go-staging
• push to edge
• verify that non-SGMail inboxes can receive OTP from go-staging (via Postman)
• verify that SGMail inboxes can receive OTP from go-staging (via Postman)
• verify that non-SGMail inboxes can receive OTP from edu-staging or health-staging (via SES)
• verify whether SGMail inboxes can receive OTP from edu-staging or health-staging (via SES)

Other todos

• Determine if we should apply Postman fallback to health and edu environments as well

Deploy Notes

• add env variables to prod
  • POSTMAN_API_KEY - 1Password
  • POSTMAN_API_URL - https://api.postman.gov.sg/v1/transactional/email/send
  • ACTIVATE_POSTMAN_FALLBACK - true
• deploy to prod

[yong-jie]

tech debt to address next time: the codebase currently using cross-fetch for making HTTP requests. axios might not be necessary

[gweiying]

Aha! Thanks for highlighting, I was poking around and couldn't find a HTTP request module.

[yong-jie]

no worries we can address this next time!