A full-stack customer portal blueprint handling service plans, order validation, invoice generation, and lifecycle webhooks for digital infrastructure ventures.
Built to understand and solve the hardest edge cases in hosting and SaaS commerce: idempotent webhook handling, grace-period suspension workflows, tax-aware invoicing for an India-first + global audience, and clean customer self-service.
Off-the-shelf billing suites are often bloated, rigid to theme, or fragile when reconciling asynchronous payment confirmations with automated server provisioning.
Architected a deterministic service state machine (`Pending` -> `Provisioning` -> `Active` -> `PastDue` -> `Suspended` -> `Terminated`) backed by append-only ledger entries and verified webhook consumers.
Full-stack commerce & service lifecycle architecture prototype for Asnorith ventures.
Separates financial ledger integrity from downstream infrastructure side effects through transactional outbox events.
Validates SKU combinations and calculates integer-precision totals on the server.
Confirms settlement authenticity before recording immutable invoice state.
Emits provisioning or renewal jobs reliably even if a downstream node is briefly unreachable.
Gives clients transparent visibility into billing status and active resources.
Handling out-of-order payment webhooks (e.g., settlement arriving before redirect callback).
DECISION: Made verified server-to-server webhooks the single source of truth for state transitions.
OUTCOME: Eliminated race conditions when users close browser tabs mid-redirect.
Preventing accidental data loss on overdue hosting renewals.
DECISION: Separated network/CPU suspension from storage reclamation using multi-step grace windows.
OUTCOME: Protects customer workloads from immediate deletion while enforcing fair billing.
Never store monetary values as floats — integer minor units (paise/cents) prevent subtle reconciliation bugs.
A clear state machine diagram saves weeks of debugging edge cases between billing and infrastructure.
