Redis GETEX: How to Implement Sliding TTL for Cache EntriesWhile working with Redis caching, I recently came across a Redis command that I hadn't used before: GETEX. At first glance, it looks similar to the usual GET command. But there is one important differSep 28, 2026·4 min read
GitHub Action to update ReadMe FileKeeping your GitHub README updated with your latest blog posts can be boring and repetitive. Here is the solution for it. In this article, I’ll walk you through how I used two GitHub repositories and GitHub Actions to automatically fetch my Hashnode ...Dec 2, 2025·3 min read
Scheduling Messages in RabbitMQMessage scheduling in RabbitMQ can be done in two ways, TTL and Dead Letter Exchange Delay Exchange 1. TTL and Dead Letter Exchange: Time-To-Live (TTL) is a parameter that specifies how long a message can remain in a queue. If the message is not...Jul 11, 2025·2 min read
GraphLookup in MongodbGraph lookup is a way of doing recursion in Mongodb. It does a recursion to find the recursive outcome of any given condition within a single collection or across collections. Syntax: { $graphLookup: { from: <collection name>, startWit...Mar 7, 2024·4 min read
Various ways to execute MongoDB queries1. Mongo shell Navigate to the MongoDB shell and execute the queries. Steps to execute the queries in Mongo shell: Type cmd in your system search Open the command prompt Type mongo shell command in your command prompt. Execute the queries 2. ...Jan 30, 2023·1 min read
Aggregation using MongoDB compassAggregation: Aggregation in MongoDB is used to process Multiple documents Across collections Grouping values to provide a single output Aggregation process the data by splitting it into multiple stages. Multiple stages combine to form a single p...Jan 15, 2023·3 min read
Hybrid EncryptionHybrid in simple terms is the combination of two or more things. Here, as the name depicts Hybrid encryption is the combination of symmetric and Asymmetric encryption. Symmetric key algorithm: It is a type of algorithm that uses only one key to encry...Jan 9, 2023·2 min read
