git:20261018.40470cc to git:20261018.decabad

---

name: zitadel-sdk-solid

description: >-

Integrate Zitadel authentication into a SolidJS app with

`@zitadel/sdk-solid`. Use when the user wants to add Zitadel login,

registration, logout, or a signed-in session card to an existing or

custom Solid SPA (Vite, SolidStart, etc.) — wiring `configureZitadel`

and the `<ZitadelLogin>` / `<ZitadelLogout>` / `<ZitadelSession>`

components by hand rather than scaffolding from scratch.

---

# @zitadel/sdk-solid

Solid components that render the Zitadel auth UI inside a client-side SPA.

The package wraps the framework-agnostic `<zitadel-*>` web components as

real Solid components, so login, logout, and the signed-in session card are

JSX you drop into your routes.

## When to use

- **Fresh project:** prefer the CLI. `npx @zitadel/cli@alpha setup --framework solid`

scaffolds a wired Solid app (and the dev proxy) for you — see the

`zitadel-cli` skill. Don't hand-assemble what the CLI generates.

- **This skill:** an app that already exists, or a custom integration the

scaffold doesn't cover — adding auth to a Solid app you already have,

moving the components into your own routes, or wiring the config yourself.

## Install

`solid-js >= 1.6` is a peer dependency, and the published types need

TypeScript >= 5.0.

```sh

npm install @zitadel/sdk-solid@alpha

```

## Integrate

Configure once, then render the components. `configureZitadel` returns a

project handle you pass to each component.

```tsx

import { ZitadelLogin, configureZitadel } from '@zitadel/sdk-solid';

const project = configureZitadel({

projectId: import.meta.env.VITE_ZITADEL_PROJECT_ID,

proxyPath: '/__nextgen',

});

export default function LoginPage() {

return <ZitadelLogin project={project} purpose="login" postSignInUrl="/" />;

}

```

Logout and the signed-in session card take the same `project` handle:

```tsx

import { ZitadelLogout, ZitadelSession } from '@zitadel/sdk-solid';

<ZitadelLogout project={project} postSignOutUrl="/login" />;

<ZitadelSession project={project} />;

```

`purpose` selects the flow (`"login"`, etc.); `postSignInUrl` /

`postSignOutUrl` are where the widget navigates after the flow completes.

**Same-origin proxy.** The widgets call `${proxyPath}/…` same-origin

(default `/__nextgen`). For local development the CLI dev proxy covers this;

you can also skip the proxy and point `proxyPath` straight at the backend

cross-origin, e.g. `proxyPath: "http://localhost:8080"` (the `zitadel start`

local runtime default port).

## Read these, don't guess

Treat the installed package as authoritative over anything here — this skill

and the package version move independently.

- `node_modules/@zitadel/sdk-solid/README.md` — the shipped usage doc.

- `node_modules/@zitadel/sdk-solid/dist/index.d.ts` and the re-exported

`@zitadel/sdk-core/types` — the real prop names, component props

(`ZitadelLoginProps`, `ZitadelLogoutProps`, `ZitadelSessionProps`), and

`configureZitadel`'s config shape. Read the types before wiring a prop you

are unsure of rather than assuming its name.

Exported surface (discover-first, confirm against the types above):

`configureZitadel`, `getApi`, `getZitadelConfig`, the `ZitadelLogin` /

`ZitadelLogout` / `ZitadelSession` components, `businessLocales`, and the

`ZitadelConfig` / `ZitadelProject` types.

## Gotchas

- **Server rendering.** If your app renders on the server, mount the widget on the client only, after hydration, or pass `projectId` and `proxyPath` to the `ZitadelLogin` wrapper as strings (it writes them as the `project-id` and `proxy-path` attributes; use those hyphenated names only on a raw `<zitadel-login>` element), because a widget that starts before its configuration arrives shows an error instead of the flow.

- **Production SPA deployment is not yet supported.** The same-origin proxy

path must come from your hosting platform, and the CLI can't scaffold those

configs yet, so a production SPA build has no proxy to talk to. See

ADR 036 and zitadel/nextgen#560. The CLI dev proxy covers local

development only.

- **TypeScript < 5.0 won't type-check.** The published `.d.ts` re-exports

with `export type *`, introduced in TS 5.0.

- **`solid-js` is a peer dependency** (`>= 1.6`) — install it in the host

app; the package does not bundle it.