Automate app function runs

To run a function automatically based on predefined conditions, use the Workflows app. There are numerous reasons why you might want to run a function automatically, for example:

• To fetch data from external systems and write time series
• To sync an app state with an external system

Solution

In the Workflows app, create a workflow with the trigger of your choice and a task of type Run Javascript to call the function:

export default async function () {
  const response = await fetch('/apps/my.demo.app/api/query-external-data');
  if (!response.ok) {
    const responseText = await response.text();
    throw new Error(`Request failed with status ${response.status}. Response text: ${responseText}`);
  }
}

The URL follows the same pattern as for calls from the app UI. In this example, my.demo.app is the ID of the app and query-external-data is the name of the function.