Rust Error Handling: thiserror, anyhow, and error-envelope

Three Rust error handling crates that seem to overlap but fill distinct roles. Learn when to use thiserror for typed errors, anyhow for application code, and error-envelope for HTTP boundaries.

December 23, 2025 · map[name:Blackwell Systems]

You Don't Know JSON: Part 1 - Origins, Evolution, and the Cracks in the Foundation

Everyone thinks they know JSON. But do you know why it was created, what problems it solved, and more importantly - what problems it created? Part 1 explores JSON’s origins, its triumph over XML, and the fundamental weaknesses that spawned an entire ecosystem of extensions.

December 15, 2025 · map[name:Blackwell Systems]

You Don't Know JSON: Part 2 - JSON Schema and the Art of Validation

JSON lacks types and validation - any structure parses successfully. JSON Schema solves this by adding a validation layer without changing JSON itself. Learn how to define schemas, validate at runtime, generate code, and build type-safe APIs.

December 15, 2025 · map[name:Blackwell Systems]

HTTP Error Handling in Go: Chi, Gin, and Echo

Stop returning errors as plain text. Learn how to implement consistent, structured HTTP error responses in Go with support for Chi router, Gin framework, and Echo framework. Includes field-level validation and trace IDs.

December 6, 2025 · map[name:Blackwell Systems]