Hooks de datos para React

Lee datos en vivo y comparte el firmante mediante el contexto React.

Esta referencia detallada de la API se mantiene en inglés y sigue el código del SDK enlazado. Los ejemplos con variables de aplicación requieren tu firmante, claves, almacenamiento o interfaz.

React hooks

tsx

import {
  NostrDataProvider,
  useProfile,
  useNote,
  useThread,
  useEngagement,
  useFollows,
  useRelayList,
} from "nostr-wot-sdk/data/react";

<NostrDataProvider
  relays={["wss://relay.damus.io", "wss://nos.lol"]}
  profileAggregators={["wss://purplepag.es"]}
  persistence={{ namespace: "myapp", ttlMs: 86400_000 }}
>
  <App />
</NostrDataProvider>;

function ProfileCard({ pubkey }: { pubkey: string }) {
  const profile = useProfile(pubkey); // SWR
  if (!profile) return <Skeleton />;
  return <h1>{profile.displayName ?? profile.name}</h1>;
}

<NostrDataProvider> configures defaults (relays, aggregators, persistence) on mount. If you're using @nostr-wot/wot or nostr-wot-sdk, prefer <NostrSdkProvider> instead — it wraps <NostrDataProvider> and adds opt-in WoT context.

Session context

nostr-wot-sdk/data/react also hosts the shared session context — the single mount point for the active NostrSigner and the user's pubkey. It lives here (not in @nostr-wot/ui) so non-UI packages — DM hooks, blossom uploads, wallet/zap hooks — can read the signer from context without depending on the React UI package.

tsx

import {
  NostrSessionProvider,
  useSession,
  useSigner,
  usePubkey,
  useLogin,
  useLogout,
  useKEKSigner,
} from "nostr-wot-sdk/data/react";

<NostrSessionProvider
  initialSigner={someSigner /* optional — e.g. constructed at boot */}
  onChange={({ signer, pubkey }) => /* mirror to your state */}
  onLogout={async () => { /* clear app caches */ }}
>
  <App />
</NostrSessionProvider>;

Hook	Returns
`useSession()`	`{ signer, pubkey, isLoading, error, setSigner, logout }`
`useSigner()`	The active `NostrSigner` or `null`
`usePubkey()`	The active hex pubkey or `null`
`useLogin()`	`(signer) => Promise<void>` callback — set the active signer
`useLogout()`	`() => Promise<void>` callback — drops the signer + runs `onLogout`
`useKEKSigner()`	A narrow `KEKSigner` (NIP-44 encrypt + decrypt + pubkey) when the active signer supports NIP-44, else `null`

useKEKSigner exists because some operations — DM cache-key derivation, wallet local-store encryption — need NIP-44 specifically and must skip signers that don't expose it (e.g. NIP-46 bunkers with restricted perms). The hook returns null instead of throwing, so consumers can branch on capability:

tsx

const kek = useKEKSigner();
if (!kek) return <p>Your signer doesn't support NIP-44 — encrypted-at-rest cache disabled.</p>;
const cacheKey = await getOrCreateCacheKey(kek.pubkey, kek);

@nostr-wot/ui mounts and consumes this same context for its login flows, and re-exports the hooks for convenience. If you're only using nostr-wot-sdk/data (no UI), construct a signer yourself (from nostr-wot-sdk/signers) and call useLogin()(signer) to attach it.

Referencia de API

Referencia de API Migración de paquetes anteriores