Skip to main content

Node & Redis cache Connection

Refer below link to connect both and follow below details for docker integration:


 node.js - Nodejs Redis createClient() function - Stack Overflow


Install the Redis package: First, you need to install the Redis package for Node.js. You can do this using npm by running the command npm install redis.


Initialize Redis client: In your server-side code, you would create a Redis client instance using the redis.createClient() method, which establishes a connection to the Redis server. You can also pass in configuration options such as the Redis server host and port.


Add caching logic: Once you have a Redis client instance, you can add caching logic to your server-side code. This typically involves wrapping a function that retrieves data from a database or external API in a Redis cache check. For example, you might use the Redis get() method to check if the requested data already exists in the cache. If it does, you can return the cached data. If it doesn't, you would fetch the data from the database or API and then store it in Redis cache using the set() method for future requests.


Implement cache expiration: To prevent stale data from being returned from the cache, you can implement a cache expiration time. This can be done using the expire() method in Redis, which sets a time-to-live (TTL) for the cached data.


Integrate with React: Finally, you can integrate the Redis cache with your React app by making API requests to your Node.js server. When your server-side code returns data, it will either be retrieved from the Redis cache or fetched from the database or API, depending on whether the data is already cached. Your React app can then use this data to render UI components as needed.


Overall, adding Redis cache to a Node.js and React server app can help improve performance and reduce the load on your database or external APIs. However, it does require some additional setup and maintenance to ensure that your cache is functioning properly and not causing any issues with data consistency.

for SSO:

Redis cache can help in SSO (Single Sign-On) by reducing the time and resources required to authenticate users across multiple services or applications. SSO typically involves a user logging in once and then being granted access to multiple services without needing to re-enter their credentials each time. However, this can still involve a significant amount of overhead if each service needs to perform its own authentication check each time a user access it.


By using Redis cache to store authentication tokens or session data, services can quickly and easily check whether a user is authenticated without needing to perform a full authentication process each time. For example, when a user logs in, their authentication token can be stored in Redis cache along with a TTL (time-to-live) value that specifies how long the token should remain valid. When the user accesses a different service, that service can check if the token is present in Redis cache and still valid before granting access, rather than requiring the user to log in again.


This can help improve performance and reduce the load on your authentication system, as well as provide a better user experience by allowing users to seamlessly access multiple services without needing to constantly re-enter their credentials. However, it's important to ensure that your Redis cache is properly secured and maintained to prevent any security vulnerabilities or data inconsistencies.


Comments

Post a Comment

Popular posts from this blog

GraphQL vs REST

  GraphQL   GraphQL is an application layer server-side technology which is developed by Facebook for executing queries with existing data. GraphQL can optimize RESTful API calls. It gives a declarative way of fetching and updating your data. GraphQL helps you to load data from server to client. It enables programmers to choose the types of requests they want to make. REST REST is a software architectural style that defines a set of constraints for creating web services. It is designed specifically for working with media components, files, or hardware device. The full form of REST is Representational State Transfer. ========================================================= Here is the important difference between GraphQL and REST. GraphQL REST GraphQL is an application layer server-side technology which is developed by Facebook for executing queries with existing data. REST is a software architectural style that defines a set of constraints for creating Web services. It follow...
Post a Comment
Read more

DBMS ACID Properties

 1. Atomicity states that database modifications must follow an all or nothing rule 2. Consistency states that only valid data will be written to the database. If, for some reason, a transaction is executed that violates the database's consistency rules, the entire transaction will be rolled back and the database will be restored to a state consistent with those rules.  3. Isolation requires that multiple transactions occurring at the same time not impact each other's execution. For example, if Joe issues a transaction against a database at the same time that Mary issues a different transaction, both transactions should operate on the database in an isolated manner. The database should either perform Joe's entire transaction before executing Mary's or vice-versa. 4.  Durability ensures that any transaction committed to the database will not be lost. Durability is ensured through the use of database backups and transaction logs that facilitate the restoration of committe...
Post a Comment
Read more

Git Commands

  Git commands sorted. Reference: https://git-scm.com/docs Git task Notes Git commands Tell Git who you are Configure the author name and email address to be used with your commits. Note that Git strips some characters (for example trailing periods) from user.name . git config --global user.name "Sam Smith" git config --global user.email sam@example.com Create a new local repository   git init Check out a repository Create a working copy of a local repository: git clone /path/to/repository For a remote server, use: git clone username@host:/path/to/repository Add files Add one or more files to staging (index): git add <filename> git add * Commit Commit changes to head (but not yet to the remote repository): git commit -m "Commit message" Commit any files you've added with git add , and also commit any files you've changed since then: git commit -a Push Send changes to the master branch of your remote repository: git push origin master Status List the...
Post a Comment
Read more