audit-logs.hashnode.devWhy Audit Logs Matter (And How to Add Them to Your App in Under 5 Minutes)If you’ve ever been stuck debugging a user complaint like: “Something changed but I don’t know who did it…" …then you already understand why audit logs are powerful. Audit logs are not something you bolt on at the end — they’re an essential part of...Nov 30, 2025·3 min read
thisisshreya.hashnode.devSQL Server vs PostgreSQL vs NoSQL DatabaseThis article covers the concepts, features and differences between the databases, namely SQL Server, PostgreSQL and NoSQL databases. Prerequisites Some knowledge about SQL Server and NoSQL What is a database? A database is an organized collection o...Sep 12, 2023·4 min read
thisisshreya.hashnode.devCreate a telegram bot using Node.jsThese days chatbots are used extensively by various companies for customer acquisition and retention, marketing etc. In this article, we'll see how to build a telegram bot using Node.js (GitHub). The following packages will be used to build the teleg...Sep 10, 2023·7 min read
thisisshreya.hashnode.devSmart Contract and Solidity: The beginner's GuideSolidity is a language used to develop smart contracts in Ethereum, the same way we have Rust and AssemblyScript for NEAR protocol. To develop such smart contracts, we make use of Remix IDE. But first, let's understand what a smart contract is: Smart...Nov 7, 2022·5 min read
thisisshreya.hashnode.devUnderstanding KSI: Keyless Signature InfrastructureKeyless Signature Infrastructure(KSI) was developed by GuardTime LLC in 2007 with the aim of associating a tag with every digital file/media that would help in verifying and determining the authenticity of the same. To understand KSI we must first un...Oct 28, 2022·5 min read