Development
Common JWT Claims (iss, sub, aud, exp & More)
Every common JWT claim explained — the registered claims iss, sub, aud, exp, nbf, iat and jti, plus custom claims and how to validate them.
AZ Utils Editorial · · 11 min read
#Development
Everything tagged Development.
Development
JWT Security Best Practices (Avoid the Common Attacks)
JWT security best practices — pin the algorithm, validate claims, short lifetimes and revocation, safe storage, and never put secrets in the payload.
AZ Utils Editorial · · 12 min read
Development
What Is Base64? A Developer’s Guide to Encoding
Base64 explained for developers — what it is, the 64-character alphabet, encoding in JavaScript and Python, common mistakes and best practices.
AZ Utils Editorial · · 11 min read
Development
How Base64 Encoding Works (Step by Step)
A step-by-step look at how Base64 encoding works — 3 bytes to 4 characters, the 6-bit groups, padding and decoding, with worked examples.
AZ Utils Editorial · · 10 min read
Development
Base64 Security Considerations: It Is Not Encryption
Base64 is encoding, not encryption. Learn the security implications for Basic Auth, JWTs and untrusted input — and how to use Base64 safely.
AZ Utils Editorial · · 10 min read
Development
Common JSON Errors (and How to Fix Them)
The most common JSON errors — trailing commas, single quotes, unquoted keys, comments and unescaped characters — and exactly how to fix each.
AZ Utils Editorial · · 11 min read
Development
How to Format JSON (Beautify & Minify)
How to format JSON — beautify it for readability or minify it for production — in tools, editors, the command line and code, with the why behind each.
AZ Utils Editorial · · 10 min read
Development
JSON Validation Guide: Syntax & Schema Validation
A guide to validating JSON — syntax validation (is it well-formed?) vs schema validation (is the structure right?) with JSON Schema, and why it matters.
AZ Utils Editorial · · 11 min read
Development
What Is JSON? A Complete Guide for Developers
JSON explained for developers and beginners — syntax, data types, code examples in JavaScript and Python, common mistakes and best practices.
AZ Utils Editorial · · 12 min read