@chainvue/v402-nestjs

NestJS adapter for v402: charge per request on any route with a decorator.

• @V402Payment({ amount, ... }) — route decorator declaring the price (and optional bodyHash policy)
• PaymentGuard — runs the verify + reserve phase before the handler
• PaymentInterceptor — commits after the response (two-phase debit: commit on 2xx–4xx, rollback on ≥ 500 — a definitive answer is a rendered service)
• V402Module — wires either in-process verification (own storage + Verus RPC) or http mode against a standalone facilitator daemon

npm install @chainvue/v402-nestjs

Integration walkthrough, mode comparison, and configuration reference: docs/integration in the repo.

Requirements worth knowing up front: bodyHash policies need the app created with { rawBody: true } (the guard fails closed with an operator error otherwise), and path matching uses the request target verbatim — path-rewriting proxies in front of the API are unsupported, as the spec states.

License

Apache-2.0