A developer-focused checklist for integrating an SMS API in Nepal, including credentials, retries, delivery tracking and security.
Plan the integration
An SMS API lets your application submit messages programmatically. Typical uses include order notifications, reminders and account alerts. Decide which messages are transactional, which are promotional, and how you will obtain permission before building the integration.
Keep credentials on the server
Never place an API token in browser JavaScript, a mobile app bundle or a public repository. Store it in server-side configuration or a secrets manager, restrict access, and rotate it when staff or systems change. Use HTTPS and avoid logging complete credentials or sensitive message bodies.
Validate recipients and messages
Normalize numbers to the format your provider expects. Validate required fields, reject empty messages and handle Unicode length differences. Provide meaningful error messages for invalid recipients or insufficient balance without exposing internal API details.
Handle failures and duplicates
Set reasonable request timeouts. Retry only when appropriate and use an application-side message identifier to prevent accidental duplicate sends. Keep a queue for bursts of traffic and apply rate limits so a temporary outage does not trigger an uncontrolled retry storm.
Record status and protect privacy
Save the provider message identifier, submission time, destination reference and available delivery status. Limit retention to business needs and applicable requirements. Mask phone numbers in routine logs and restrict access to message history.
Test before production
Use test recipients, simulate API failures and verify both successful and rejected requests. Check whether the provider returns acceptance, delivery or both; these are different events.
Discuss your SMS requirements
For questions about bulk SMS or integration options, contact Nepal SMS on WhatsApp. Confirm pricing, supported features and message policies with the team before choosing a plan.