MERN Stack Learner Upgrades Todo App to Dynamic React Props on Day 115

·3 views

A self-taught developer reached day 115 of their MERN stack learning journey by overhauling a personal Todo application. The key upgrade involved replacing hardcoded static data with a structured dataset array passed dynamically through React Props. The app now renders task entries from a parent component, making the interface fully data-driven rather than visually static. This shift reflects a foundational React concept — separating data from UI by passing structured objects through functional component layers.

Read the full story at DEV Community

This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)

Developer Completes KC7 Security Analyst I Curriculum on Day 3 of KQL Self-Study

A developer shared progress from their third day of self-studying Kusto Query Language (KQL) using the KC7 learning platform. The session involved continued practice navigating Azure Data Explorer (ADX) by following investigative clues through the platform's content. A key frustration noted was KC7's strict answer-input system, which marked correct answers wrong if not formatted precisely as expected. Despite this challenge, the learner successfully completed the Security Analyst I curriculum and earned associated badges.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Why Polling APIs Rate-Limits Your Agent and How Pub/Sub Fixes It

Autonomous agents that repeatedly poll APIs for status updates often trigger rate-limit errors (HTTP 429), causing them to miss the very events they were monitoring. Common workarounds like exponential backoff, conditional requests, and adaptive polling reduce the pain but do not eliminate unnecessary requests during idle periods. Approaches such as rotating API keys or IP addresses are explicitly prohibited by most providers and mask the underlying architectural flaw rather than resolving it. Webhooks offer a push-based alternative but fail for headless agents lacking stable public endpoints or persistent uptime. The recommended fix is a persistent pub/sub connection, where the agent subscribes to relevant topics and receives pushed messages instantly, eliminating polling loops and rate-limit exposure entirely.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

AI Agents Bring New Security Risks as Industry Shifts Toward Controlled Systems

Security researchers have identified a vulnerability called HalluSquatting, reported on July 8, 2026, that targets coding assistants and agentic tools such as Cursor, Gemini CLI, Windsurf, and GitHub Copilot. The attack exploits an agent's tendency to fetch packages by guessed or hallucinated names, allowing attackers to register those names and deliver malicious content. Unlike a chatbot giving a wrong answer, this represents a systemic risk since agentic AI can browse, install, execute, and chain tasks autonomously. Experts recommend restricting trusted sources, sandboxing tools, and requiring human approval before execution as basic operational safeguards. Meanwhile, enterprise demand for greater control is growing, with Prime Intellect raising $130 million in Series A funding to help businesses build and manage their own AI agents independently.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Developer builds decision-tracking tool to restore trust in human reasoning trails

A developer is working on a tool called Glovrex that records decisions in real time, logging what was chosen, what was rejected, and the reasoning behind each call. The core idea is that AI can easily replicate polished outputs like memos or design docs, but cannot fabricate the authentic trail of choices and outcomes that belong to a specific person in a specific context. Glovrex creates a tamper-evident log linking each decision to its real-world outcome, preventing backdating or silent revision of the record. The developer is careful to clarify that the tool proves a process occurred, not that a human did the thinking, since a determined user could still run the steps using AI. The project draws inspiration from GitHub contribution histories, which remain difficult to fake because they reflect a verifiable, time-stamped record of real collaborative work.

0 comments Read more at DEV Community