integration-contracts

To prevent data shape drift, define canonical payload contracts at system boundaries using TypeScript types and inline edge-function schemas. This establishes a single source of truth for required fields, optional fields, and types to ensure consistency across APIs and edge utilities.

Data contracts define the canonical shape of data crossing system boundaries. You need them for API boundary validation, edge-function I/O, and AI assistant instruction boundaries to reduce integration errors and enforce consistent naming conventions and payload structures.

Locate canonical TypeScript schema definitions in your types directory, such as @/types/*, and place inline schemas under /supabase/edge-functions/*. Align consumer contracts accordingly to maintain a single source of truth across system boundaries.

Yes, you can version breaking changes in payload definitions by documenting a versioning approach alongside your canonical contracts. Add or update sample payloads and maintain the TypeScript types and inline edge-function schemas as the authoritative source.

Yes, this contract definition approach works across template rendering, edge utilities, and APIs. By defining canonical payload shapes in TypeScript, you enforce a single source of truth for data crossing boundaries between these systems.

The best way to enforce a single source of truth is to define canonical payload contracts in TypeScript types and inline edge-function schemas. This explicitly documents required fields, optional fields, naming conventions, types, and example payloads.