Tag: data-engineering

A working guide to HMDB's access paths: the licensed REST API, the per-record XML endpoints, and the bulk downloads. Includes a streaming parser, a DuckDB mirror, and mass-based lookup with ppm windows.

The best blood test tracker is a long-format table you control plus fifty lines of Python, not an app. Here is the schema, the LOINC and unit normalization, the reference change value math, and the failure modes that make most trackers wrong.