Long Running Processes

A LongRunningProcess is a data structure that helps you inform users about the
progress of execution of a function that might take a significant amount of
time, like a migration, or importing some data, etc.

It does not help you resume function execution after your app has been
unexpectedly restarted. This data structure is only meant to help display the
progress of the function's execution.

See below for an example of how to use it.

const context = new app.Context();
const lrp = new LongRunningProcess(
  context,
  async (lrp: LongRunningProcess) => {
    await lrp.info("3", 0);
    await sleep(200);
    await lrp.info("2", 0.5);
    await sleep(200);
    await lrp.info("1", 1);
    await sleep(200);
  },
  [],
);

lrp.on("info", ({message})=>console.log(message))

const lrp_id = await lrp.getID();
await lrp.waitForFinished();