Add error handling to `get-timeline.js`

[t-will-gillis]

Overview

In some instances when an error occurs during a workflow run, we want the workflow to retry a number of times and if the error still occurs to appropriately log the error- but continue running to completion. We want to add error handling and retries to the get-timeline.js so that the workflow is not stopped prematurely, but still logs the error.

Action Items

Refer to get-timeline.js:

• [ ] After } catch (err) { starting on line 26 replace:

  console.log(err);
    continue;
  } finally {
    page++;

  with:

  if (err instanceof TypeError) throw new Error(err);
  if (retries < maxRetries) {
  const delay = Math.pow(2, retries);
  console.log(`Retrying in ${delay} seconds...`);
  await new Promise(resolve => setTimeout(resolve, delay * 1000));
  retries++;
  } else {
  console.error(err);
  throw new Error(`Failed to fetch timeline for issue #${issue_number}`);
  }

• [ ] After defining timelineArray on line 21, insert a new line:

  page++;

• [ ] At line 10, replace:

  let page = 1;

  with:

  let page = 1; retries = 0;
  const per_page = 100, maxRetries = 3;

• [ ] After line 2 insert a new line with the url to the GitHub API:

  * https://octokit.github.io/rest.js/v20#issues-list-events-for-timeline

• [ ] The changes to this function need to be tested to confirm that

  Resources/Instructions

• This issue was initiated by ER #6840

[github-actions[bot]]

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