614 lines
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614 lines
17 KiB
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react-auth
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Overview
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Overview
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Wiring Guide
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react-auth
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Overview
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Overview
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🧭 What lives where
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🔄 Session lifecycle
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🏗️ Endpoint contract
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➡️ Read Next
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Wiring Guide
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<article class="md-content__inner md-typeset">
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<h1 id="library-overview">Library Overview</h1>
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<p><code>react-auth</code> owns three concerns and nothing else: <strong>session state</strong>, <strong>the
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authenticated HTTP client</strong>, and <strong>the screens that produce a session</strong>. It
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talks to an auth server over HTTP — it never issues, validates or decodes
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tokens itself.</p>
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<hr />
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<h2 id="what-lives-where">🧭 What lives where</h2>
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<table>
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<thead>
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<tr>
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<th>Concern</th>
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<th>Module</th>
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<th>Notes</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>Session state</td>
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<td><code>contexts.tsx</code></td>
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<td><code>AuthProvider</code>, <code>useAuth</code>, <code>AuthServerConfig</code></td>
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</tr>
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<tr>
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<td>Authenticated HTTP client</td>
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<td><code>axios.ts</code></td>
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<td><code>createApiClient</code>, <code>attachAuthInterceptors</code></td>
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</tr>
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<tr>
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<td>Token persistence</td>
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<td><code>token.ts</code></td>
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<td><code>tokenStore</code> (<code>localStorage</code>, key <code>"token"</code>)</td>
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</tr>
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<tr>
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<td>Login / register screen</td>
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<td><code>AuthPage.tsx</code></td>
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<td><code>AuthPage</code>, <code>AuthMode</code></td>
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</tr>
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<tr>
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<td>Profile screens</td>
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<td><code>Profile*.tsx</code></td>
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<td>controlled presentational components</td>
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</tr>
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<tr>
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<td>User model</td>
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<td><code>models.ts</code></td>
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<td><code>AuthUser</code></td>
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</tr>
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</tbody>
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</table>
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<p>The package entry (<code>index.ts</code>) re-exports the public surface; nothing else in
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the app should import the internals directly.</p>
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<hr />
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<h2 id="session-lifecycle">🔄 Session lifecycle</h2>
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<ol>
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<li><strong>Bootstrap</strong> — <code>AuthProvider</code> seeds its token from <code>tokenStore.get()</code>.</li>
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<li><strong>Resolve the user</strong> — whenever the token changes, <code>mePath</code> is fetched and
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<code>currentUser</code> is set (or cleared).</li>
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<li><strong>Login</strong> — <code>login(username, password)</code> posts to <code>loginPath</code>, stores
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<code>access_token</code> through <code>tokenStore</code>, and takes <code>currentUser</code> from the
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response <code>user</code>.</li>
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<li><strong>Register</strong> — <code>register(...)</code> creates the account, then logs in.</li>
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<li><strong>Request</strong> — every client built by <code>createApiClient</code> attaches
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<code>Authorization: Bearer <token></code> from <code>tokenStore</code>.</li>
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<li><strong>Expiry</strong> — a <code>401</code> clears the token and dispatches an
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<code>auth:unauthorized</code> window event; <code>AuthProvider</code> listens, clears the
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session, and invokes the optional <code>onUnauthorized</code> callback.</li>
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<li><strong>Logout</strong> — best-effort call to <code>logoutPath</code>, then local state is always
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cleared.</li>
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</ol>
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<div class="admonition note">
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<p class="admonition-title">One source of truth</p>
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<p><code>tokenStore</code> is the only place the token is written. Reading it from
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anywhere else will desynchronise the UI from the network layer.</p>
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</div>
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<hr />
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<h2 id="endpoint-contract">🏗️ Endpoint contract</h2>
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<p><code>AuthServerConfig</code> is the complete wiring surface; every path resolves
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relative to <code>serverUrl</code>:</p>
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<table>
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<thead>
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<tr>
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<th>Field</th>
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<th>Shape</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code>loginPath</code></td>
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<td><code>POST { username, password }</code> → <code>{ access_token, user }</code></td>
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</tr>
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<tr>
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<td><code>registerPath</code></td>
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<td><code>POST { username, password }</code> to create an account</td>
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</tr>
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<tr>
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<td><code>logoutPath</code></td>
|
||
<td>called on logout; failures are ignored</td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>mePath</code></td>
|
||
<td>returns the current <code>AuthUser</code> for a valid bearer token</td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>introspectPath</code></td>
|
||
<td>token introspection, available to callers that need it</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p><code>AuthUser</code> is intentionally permissive so it can be spread into application
|
||
state without loss.</p>
|
||
<hr />
|
||
<h2 id="read-next">➡️ Read Next</h2>
|
||
<ul>
|
||
<li><a href="../02_wiring/">02 – Wiring Guide</a></li>
|
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</ul>
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