Define MongoDB _id-Type as String

Working with Data Node.js Frameworks
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11

The actual issue here is, that I didn’t type collection correctly! The corrected function would look like this:

import { MongoClient } from "mongodb";

const dbUrl = "mongodb://localhost:27017/";

export const deleteDocumentWithId = (id: ObjectId) => {
  return MongoClient.connect(dbUrl, (err, db) => {
    if (err) {
      throw err;
    }

    const dbo = db.db("my-db");

    dbo.collection<DocumentType>("my-collection").deleteOne({ _id: id }, (err, obj) => {
    //                      ^^^ Note this type-definition!
      if (err) {
        throw err;
      }
      db.close();
    });
  });
};

deleteDocumentWithId("EXISTING_ID");

It actually would have sufficed to type collection like this:

dbo.collection<{ _id: string }>("my-collection").deleteOne({ _id: id }, (err, obj) => {

I got this answer off of my own related questions on Reddit and Stackoverflow. I didn’t find any documentation saying, that collection is generic though. This might be an issue for more users.

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