Dynamically remove a MongoDB entry with precision

I'm having trouble deleting an entry in MongoDB based on the id variable. Even when I pass the id as a parameter to the method, it doesn't seem to work. I've double-checked the variable inside the method and I'm confident that it has the correct value. At first, I thought it might be because the variable is stored as a String, so I tried converting it to a Number, but that didn't solve the issue either. Here's the code snippet:

async function DeleteID (collectionName, threadIDString) {
  const uri = "mongodb://ADDRESS";

  const client = new MongoClient(uri, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
  });

  try {
    const threadIDNum = parseInt(threadIDString);
    await client.connect();
    const database = client.db("DB")
    const eventCollection = database.collection(collectionName)
    await eventCollection.updateOne({}, {$unset: {threadIDNum: 1}})
  } finally {
    await client.close();
  }
}

It seems like both `threadIDNum` and `threadIDStirng` are not working within `$unset`, but manually inserting a value in their place makes the code work.

Answer №1

When you need to delete specific data, consider using unset.

await eventCollection.updateOne(
                        { 
                            postID: 25 // specify the identifier for the record
                        },
                        { 
                           $unset: { postID: 1 } // field that should be deleted
                        }
               )

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