I'm using Nodejs Express, the router middleware, in this case, MongoDB and using the POST method via JQuery ajax. Does anyone know why the router.post doesn't call, but a .get works. Does anyone know why the router.post doesn't get triggered when called as a Promise/async.

Async route here doesn't get called on ajax post.

async function asyncMain() {
  const uri = "mongodb endpoint";
  const client = new MongoClient(uri)

try {
    await client.connect().then(console.log('Connected to MongoDB'));

    //keeps awaiting cause it never executes.
    await pushToDB(client)
    //all mongoClient functions work with await here
    //Express http Post doesn't work with await here

} catch (e) {
    console.error(e);
} finally {
    await client.close();
  }
}

asyncMain().catch(console.error);

async function pushToDB(client) {
router.post('/', async(req, res, next) => {
    
    const result = await client.db('user').collection('notes').insertOne(req.body);
    console.log(`Results ${ result.insertedId }`);
  })
}

I tried using this async Middleware implementation with no results. Such as wrapping the post function's callback in asyncMiddleware to no avail.

 const asyncMiddleware = fn =>
 (req, res, next) => {
    Promise.resolve(fn(req, res, next))
        .catch(next);
 };

My working sync function for reference.

function main() {
   const uri = "mongodb endpoint";
   const client = new MongoClient(uri)

   client.connect().then(console.log('connected to DB'));
   router.post('/', (req, res) => {
    
   const result = client.db('user').collection('notes').insertOne(req.body);
   console.log(`Results ${ result.insertedId }`);
  })
}