Redis VS MongoDB

To make data retrieval efficient and minimize the need to request data from the API on every page load, I implemented a caching strategy using the ioredis package, which is a popular redis client for Node.js for interacting with a Redis database.

5. ioredis

These are the objects I pass to ioredis to create my Redis instances (one for sessions and one as the main one):

In order to try and mitigate the OOMs. I read the Background Jobs in Node.JS with Redis blog post and implemented Heroku Data For Redis with ioredis, BullMQ and Throng,

Redis.Redis and Redis.Cluster at the end of the rule actually refer to the ioredis constructors, so to set them up, we must use the ioredis constructors.

ioredis is a popular Node.js client, providing a robust support for Redis Cluster.

To connect to Redis from your application, you will need a library that can perform that for you (Otherwise you have to reinvent the wheel). While I've been using IORedis for a nodeJS application in this demo, if you have been using a different language, you will have to look for different connectors like Lettuce for Java or perhaps go-redis for Go.

The Redis client I'm going to use today is ioredis, because its API is intuitive, very robust and with good performance.

Just create your own wrapper service around one of the existing nodejs redis clients, I used the following client https://github.com/luin/ioredis

The MongoDB JavaScript driver uses and requires node.js, which is what 99.9% of server-side JavaScript implementations use.

Mongo Drivers

If you look at how major backend projects structure their code, it's almost always object-oriented TypeScript.

I submit for the record:

- Apollo Client: https://github.com/apollographql/apollo-client/blob/main/src...

- Storybook: https://github.com/storybookjs/storybook/blob/next/lib/chann...

- Nest: https://github.com/nestjs/nest/blob/master/packages/core/nes...

- MongoDB Driver: https://github.com/mongodb/node-mongodb-native/blob/main/src...

- Prisma: https://github.com/prisma/prisma/blob/main/packages/engine-c...

The MongoDB Node.js Driver, to save data to MongoDB;

The error probably is a MongoServerError, not MongoError, see https://github.com/mongodb/node-mongodb-native/blob/HEAD/etc/notes/errors.md

The most basic way to interact with MongoDB is using the Official MongoDB Node.js Driver, in this guide we will use Mongoose an object modeling tool.

Now when you use the collection, you'll get better type support for for all the collection methods. Note that I had to make the _id required on the schema. If you make it optional, you still get a type error. The node driver team is working on this and other issues related to the type of _id in this PR: https://github.com/mongodb/node-mongodb-native/pull/3077

To communicate with MongoDB database we will need Node driver mongodb. So install it.

Could this _ensureIndex be the problem? I think that may be calling into listIndexes here: https://github.com/mongodb/node-mongodb-native/blob/2b18411d2f57e06d11262d5a308c56a9f561789e/lib/operations/db_ops.js#L305. IIRC, ensureIndex is deprecated, and you should use createIndex instead. I'm not familiar with meteor, so I'm not exactly sure what that code looks like, but the README shows how to access the underlying MongoDB driver directly: https://github.com/meteor/meteor/tree/devel/packages/mongo#direct-access-to-npm-mongodb-api. Hope that helps!