iGrant.io frontend client (generic, no SDK)

When to use

The shared frontend building block for any OWS integration. igrantio-issuer-frontend and igrantio-verifier-frontend both build on it. It replaces the internal @igrant/usecase-sdk / igrant-api-lib with self-contained, framework-agnostic code you own. Read igrantio-ows-overview for the endpoint/response contract.

What it provides

Framework-agnostic core (only fetch + EventSource):

• createOwsClient({ baseUrl, apiKey? }) - typed methods:
  • issuance.issueInTime, issuance.startDeferred, issuance.completeDeferred, issuance.readHistory, issuance.deleteHistory
  • verification.sendRequest, verification.readHistory, verification.deleteHistory
  • baseUrl = your backend proxy (https://host/ows/<tenant>); leave apiKey empty (the backend injects it).
• openSseSession({ webhookBaseUrl, exchangeId, onMessage }) - EventSource session with consume-and-delete and reconnect; returns { close }.
• types.ts - request/response + SSE event types.