Trying to build an asynchronous recursive tree builder

buildGraphTest.js

const Redis = require("ioredis");

const redisOpts = {
  port: 6379,
  host: "127.0.0.1"
};
var _redis = new Redis(redisOpts);

var blacklist = [];

function buildNode(id) {
    console.log("buildNode id", id);
    // const url = await _redis.get(id+":url");
    // const title = await _redis.get(id+":title");
    // const childIDs = await _redis.smembers(id+":links");
    blacklist.push(id);
    console.log("blacklist",blacklist);
    return _redis.pipeline().get(id+":url").get(id+":title").smembers(id+":links").exec().then(results => {
      var url = results[0][1],
          title = results[1][1],
          childIDs = results[2][1];

      // console.log(results);
      console.log("starting children...", childIDs);
      var children = childIDs.map((cid) => {
        if(!blacklist.includes(cid)) buildNode(cid).then(result => { console.log(result); return result });
      });

      return { id, url, title, children };
    });


}

// read data from Redis and construct in-memory graph for renderer
function main() {
  _redis.get("startID").then(startID => {
    // blacklist.push(startID);
    var sitemapTree = buildNode(startID).then(sitemapTree => {
      console.log("done",JSON.stringify(sitemapTree));
    });
    
  });
};

main();