Triggering Mails After 3 Days of Cold Weather

Context

This example shows how to create a workflow that triggers a promotional email about a tropical vacation after 3 days of cold weather. It can be useful for an agency or anyone who wants to trigger notification based on data from an external API and time factors.

Requirements

• A Zenaton account, API id and API key
• An OpenWeatherMap API key
• A Sendgrid account

Workflow Logic

Step by step, the workflow logic is:

• Call a weather API to get the temperature of the current day during a specific period (ie. number of days)
• If the temperature is less than 40°F for three days in a row, then send an email to users using gmail.
• If not, then keep checking everyday until the end of the time period
• If during the time period, the temperature hasn't dropped below 40°F for 3 days, then send a different promotional email.

This flowchart shows a visual representation of the workflow tasks.

Going further

To make this example usable in a real-world production environment, we could:

• Use (lat, long) boxes to pinpoint users in a specific area, not a city
• Add A/B testing in the worklow to increase conversion rate

Feel free to submit a PR if you extended this example!

Run on Heroku

Follow this button , then fill in the env variables and click "deploy".