Dynamodb record not updating through for loop

Question

I'm currently using dynamoose for managing records in dynamodb.

from my client I'm receiving a collection of insiders

insiders: [
  { uid: '123', name: 'Insider A' },
  { uid: '456', name: 'Insider B' },
  { uid: '789', name: 'Insider B' }
]

and my lambda function receives the collection thru insiders variable and I loop in each records. Inside loop I update the position of the records

module.exports.reorder = async (event) => {

  const klass = await getKlass.byEnv(process.env.STAGE, 'insider');
  const req = event.body
  var insiders = req.insiders;

  try {
    for (let [index, insider] of insiders.entries()) {
      console.log("Insider: ", insider);
      console.log("Index: ", index);
      await klass.update({ uid: insider.uid }, {
        $PUT: {
          position: index += 1
        }
      }, { condition: 'attribute_exists(uid)' })
    }
    return successResponse.message();
  } catch (err) {
    console.log("===============");
    console.error(err);
    console.log("===============");
    if (err && err.code == 'ConditionalCheckFailedException') {
      return noRecord404.notFound();
    }
  }
}

this is working fine when I'm testing it in my local but when I deploy it to AWS Lambda It's not being updated. I also put console.log inside loop and I'm getting the printed log.

Need more info. Errors? What does cloudwatch say? Did you configure everything correctly? — Mars, May 20 '19 at 04:13
@Mars there's no errors. It's just not updating the items inside dynamodb — AllenC, May 20 '19 at 07:51
Is your lambda script actually getting called? What are you logging to cloudwatch? Can't really say much with this limited info... — Mars, May 20 '19 at 07:56
@MarkB the klass is the modal related to the DB. for example I have insiders table so my klass is `Insider` — AllenC, May 21 '19 at 02:40
@Mars there's no error from CloudWatch. In fact I'm getting the console.log inside the loop. — AllenC, May 21 '19 at 02:41
What does "getting the console.log inside the loop" mean? Once? 100 times? — Mars, May 22 '19 at 02:49
If your logic is being performed inside klass.update, then we need to see klass.update — Mars, May 22 '19 at 02:49

Dynamodb record not updating through for loop

0 Answers0