How use Redis MongoDB in node JS?

Setting up a NodeJS app with Redis and Mongo

1. Install MongoDB database if not already installed sudo apt install mongodb .
2. Install Redis Server sudo apt install redis-server .
3. Create a directory to contain the project mkdir node-redis-mongo .
4. Run npx express-generator to create an application file structure.

Can Redis be used with MongoDB?

Redis presents itself as a key/value store with the ability to handle binary keys and a range of data structures as values. You can use it as a straight cache, but the real power comes when you use Redis’s ability to manipulate the data it holds in memory.

How does MongoDB integrate with Redis?

First, we will add a cache configuration and connect our application to the Redis server, for this purpose we will add the Redis package from npm. Second, we need to add the logic that queries Redis, and if there is no answer it will query our MongoDB. After we got new data from MongoDB we’ll store it in Redis.

Can I use Redis as a database?

Essentially, Redis is a NoSQL in-memory data structure store that can persist on disk. It can function as a database, a cache, and a message broker. The core Redis data model is key-value, but many different kinds of values are supported: Strings, Lists, Sets, Sorted Sets, Hashes, Streams, HyperLogLogs, and Bitmaps.

What is connect Redis?

connect-redis provides Redis session storage for Express. Requires Redis >= 2.0.

How does MongoDB cache work?

MongoDB keeps most recently used data in RAM. If you have created indexes for your queries and your working data set fits in RAM, MongoDB serves all queries from memory. MongoDB does not cache the query results in order to return the cached results for identical queries.

How much faster is Redis than MongoDB?

The general answer is that Redis 10 – 30\% faster when the data set fits within working memory of a single machine.

How do I run Redis benchmark?

Take advantage of Redis inbuilt benchmarking utility called redis-benchmark . Its included in Redis installation and can be executed by just typing redis-benchmark on UNIX. Its also available on Windows and executable is redis-benchmark.exe.

What is persistence in Redis?

RDB (Redis Database): The RDB persistence performs point-in-time snapshots of your dataset at specified intervals. AOF (Append Only File): The AOF persistence logs every write operation received by the server, that will be played again at server startup, reconstructing the original dataset.

Can Redis replace MySQL?

Redis has limited ability to create relationships between data objects — it’s not a replacement for a relational (e.g. MySQL) or document-based (e.g. MongoDB) database. Clustering and key management in production applications can be a challenge without the right rules in place.

How do I start redis on node JS?

To use Redis with Node. js, you need to install a Node. js Redis client….Connect to Redis

1. – The name of the host your database runs on.
2. – The port that the database is running on (default: 6379)
3. – The password you use to access Redis, if necessary.