Print log groups w/o tags

cw-log-groups-without-tags.ts

import {CloudWatchLogs} from 'aws-sdk';

const cw = new CloudWatchLogs({region: 'us-east-1'});

(async () => {
  const results: CloudWatchLogs.LogGroup[] = [];

  await getAllLogGroups(results, '');

  for (const lg of results) {
    const {tags} = await cw.listTagsLogGroup({logGroupName: lg.logGroupName}).promise();

    if (!tags.Project || !tags.Environment) {
      console.log(lg.logGroupName, tags);
    }
  }
})();

async function getAllLogGroups(results: CloudWatchLogs.LogGroup[], nextToken?: string) {
  const resp = await cw
    .describeLogGroups({
      limit: 50,
      ...(nextToken ? {nextToken: nextToken} : {})
    })
    .promise();

  if (resp.logGroups.length) {
    results.push(...resp.logGroups);
    console.log(resp.logGroups.length);

    if (resp.nextToken) {
      await getAllLogGroups(results, resp.nextToken);
    }
  }
}