Diagnosing Latency and Performance Degradation in Meteor.js Applications
Learn how to diagnose and fix latency spikes in Meteor.js by optimizing DDP publications, resolving MongoDB collection scans, and preventing event loop blockage.
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mongodbHandling Latency in Meteor: Mastering Method Simulation
Learn how Meteor's Method simulation enables optimistic UI updates and how to prevent 'UI flicker' and security leaks when sharing logic between client and server.
Implementing Secure Reactive Data Flow in Meteor 2.x
Learn how to implement the secure Meteor 2.x pattern using Publications for reactive reads and Methods for validated writes to prevent data leaks and ensure performance.
Securing Data Writes in Meteor: Moving from Insecure to Methods
Stop relying on the 'insecure' package. Learn how to use Meteor Methods to create a secure server-side boundary while maintaining a snappy UI through latency compensation.
javascriptManaging Real-Time Data Flow with Meteor Publish-Subscribe
Learn how to implement and optimize Meteor's publish-subscribe pattern to securely stream real-time data from server to client while avoiding common memory leaks and security pitfalls.
Long-lived Resume Tokens vs. Short-lived Session Expiry for Least-Privilege Access
Meteor's accounts-base package implements a session management system based on hashed login tokens stored in users.services.resume.loginTokens . By default, these tokens allow clients to silently re-authenticate via DDP for approximately 90 days, which may conflict with security requirements for applications requiring strict least-privilege access and freque
Memory leak during DDP cursor cleanup on low-tier instances
When hosting low-traffic Meteor applications on minimal-memory cloud instances, the publish-subscribe mechanism often leads to unexpected memory exhaustion. The Distributed Data Protocol (DDP) maintains persistent connections to facilitate real-time synchronization, which creates a server-side state footprint for every active subscription. Specifically, when