Legate — Delphi invoicing migration to Brazil's national NFS-e standard
Modernization of a legacy Delphi invoicing system to comply with new federal NFS-e legislation, migrating from the City of Curitiba API to the national portal without disrupting operations.
The challenge
The Delphi invoicing system issued invoices through the City of Curitiba API; new legislation required the national portal, and the software could not stop for a single day.
The objective
Comply with the new NFS-e legislation with zero disruption to daily invoicing.
The solution
Secure communication layers with the new national API, optimized payload parsing inside the legacy monolith, resilient error handling and logging for issuances, and documentation of trade-offs and API schemas as a modernization roadmap.
The impact
- NFS-e issuance migrated to the national portal with no operational disruption
- Faster invoice generation (about 25%) and much faster failure diagnosis (about 70% less time) — founder's estimates
- API and trade-off documentation for the next modernization stage
Jean C Becker
Senior Solutions Architect | AI & Machine Learning Specialist
Designed and built this work. About JBKR →