Opera-backed MiniPay adopts Sumsub reusable KYC

Node.js Security Best Practices: Build Safer and More Resilient APIs

Node.js makes it easy to build fast APIs, but speed and simplicity do not automatically make an application secure. Production services handle authentication tokens, user input, database queries…

• Treat all external values as untrusted and validate before application logic
• Use security headers like Content-Security-Policy to mitigate browser attacks
• Store secrets in environment variables or dedicated secrets manager

2h ago ·dev.to

Trie Data Structure: Efficient Prefix Matching and Autocomplete Implementation

Introduction When building features like search bar autocomplete, spell checkers, or IP routing tables, traditional hash maps and balanced binary search trees often fall short.

• Trie excels at prefix matching unlike hash maps and balanced trees
• TrieNode stores child nodes and boolean flag for complete words
• Insertion, search, and prefix search all O(m) time complexity

2h ago ·dev.to

Putting on the Product Owner Hat

Putting on the Product Owner Hat I had the idea for Second-Memory. But at that point, it was still just an idea. It was too vague to start thinking about architecture or implementation.

1h ago ·dev.to