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zitadel/apps/docs/content/sdk-examples/spring.mdx
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d8ea041c56 docs: introduce versioned docs and migrate to fuma (#11166)
## Todos for release

- [x] Configure Env in docs project on vercel
- [x] Configure Root Path in the docs project on vercel
- [ ] Remove old CSP https://github.com/zitadel/website/pull/1592

## What we did

This pull request migrates the project documentation from the old
`docs/` directory to the new `apps/docs/` directory, introduces a new
documentation system built with Next.js and Fumadocs, and updates all
relevant references, configuration files, and documentation to reflect
this change. It also adds new configuration and ignore files for the new
documentation app, updates CI and linting to exclude the new docs from
certain checks, and revises the contributing guidelines accordingly.

**Documentation System Migration and New Docs App**

* Migrated all documentation from `docs/` to `apps/docs/`, and updated
all references in `README.md`, `CONTRIBUTING.md`, and other files to
point to the new location.
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* Added a new Next.js/Fumadocs-based documentation app under
`apps/docs/`, including core app files, layouts, routing, search API,
and a comprehensive `README.md` with development and contribution
instructions.
[[1]](diffhunk://#diff-5a1b07344a2c1b4d3f37b23ff1388b62cd9f57dea3c1cd23d8a0412b7602b132R1-R74)
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[apps/docs/app/[[...slug]]/layout.tsxR1-R81](diffhunk://#diff-59e08acde4e805b7aeccef1dcf98f1d71dfc550777e6b9402085cee0e9fa4e0aR1-R81),
[apps/docs/app/[[...slug]]/page.tsxR1-R79](diffhunk://#diff-e5df3f80d0fa01e12d63d81f29c57a9d14e846c78fd3beabb2ef768e38fd9580R1-R79),
[[4]](diffhunk://#diff-389b34918e040cacaa87cd7201ffa462cc2b0b716736f537e3d3c660ac69353bR1-R7)
[[5]](diffhunk://#diff-d3b03416d1c457b19f1c27b26f2db741412df841b875c26ccadc36e4522247f4R1-R29)
[[6]](diffhunk://#diff-c8fb8339570a5305809be7c618e14705fd86390dc278e6ce8ba224a7bc8b0c3cR1-R25)

**Configuration and Tooling Updates**

* Updated `.github/workflows/codeql.yml`, `.golangci.yaml`, and
`.github/dependabot.yml` to properly handle the new docs app: excluded
`apps/docs` from certain checks, added npm dependency updates for the
docs app, and excluded generated content.
[[1]](diffhunk://#diff-12783128521e452af0cfac94b99b8d250413c516ec71fe6d97dbea666ff7ba27L8-R14)
[[2]](diffhunk://#diff-9917ddc9f1c3304218f7269265b746d997c5c0615478177b5fceecd33ef47cb5R5-R6)
[[3]](diffhunk://#diff-9917ddc9f1c3304218f7269265b746d997c5c0615478177b5fceecd33ef47cb5R126-R129)
[[4]](diffhunk://#diff-dd4fbda47e51f1e35defb9275a9cd9c212ecde0b870cba89ddaaae65c5f3cd28R89-R106)
* Updated `.devcontainer/devcontainer.json` to use the latest Go 1.25.3
version for consistency.

**Licensing and Miscellaneous**

* Added `apps/docs/` to the list of licensed directories in
`LICENSING.md`.

These changes ensure the documentation is now maintained in a modern,
scalable system and all project tooling is updated to support the new
structure.

---------

Co-authored-by: Federico Coppede <[email protected]>
2026-01-29 08:38:36 -08:00

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---
title: Spring Boot
sidebar_label: Spring Boot
framework_url: https://spring.io/projects/spring-boot
auth_library: "Spring Security"
auth_library_url: https://spring.io/projects/spring-security
example_repo: https://github.com/zitadel/example-auth-spring
auth_flow: pkce
status: stable
---
## Overview
[Spring Boot](https://spring.io/projects/spring-boot) is a powerful, production-ready framework for building Java applications. This example shows how to integrate **Zitadel** into a Spring Boot web application using **OpenID Connect (OIDC)** and the **Authorization Code Flow + PKCE**.
It demonstrates a common web app pattern: users start on a public landing page, authenticate with Zitadel via a login button, and are then redirected to a protected profile page that displays user information. Logout is also implemented to end both the local session and the Zitadel session.
#### Auth library
This example uses **[Spring Security](https://spring.io/projects/spring-security)**, the standard framework for authentication and access control in Spring applications. Spring Security supports OIDC natively and manages the PKCE flow for you.
---
## What this example demonstrates
This example shows a complete authentication implementation using Spring Security’s OAuth 2.0 / OIDC support:
- **Public landing page** (`/`) accessible without authentication.
- **Sign-in with Zitadel** via Spring Security’s OAuth2 login entrypoint.
- **Route protection** so authenticated access is required for protected routes (e.g. `/profile`).
- **Profile page** that renders the authenticated user’s OIDC claims.
- **Server-side session management** handled by the servlet container + Spring Security.
- **Federated logout** that clears the local session and triggers RP-initiated logout against Zitadel, returning the user to a post-logout callback route.
---
## Getting started
### Prerequisites
Before you begin, ensure you have the following:
#### System Requirements
- Java Development Kit (JDK) 17 or later
- Maven (or use the included `mvnw` wrapper)
#### Account Setup
You’ll need a Zitadel account and an application configured for a Web app using Authorization Code + PKCE.
> **Important:** Configure the following URLs in your Zitadel application settings:
>
> - **Redirect URIs:** `http://localhost:3000/auth/callback`
> - **Post Logout Redirect URIs:** `http://localhost:3000/auth/logout/callback`
>
> These URLs must exactly match what your Spring Boot application uses. For production, add your production URLs.
### Run the example
1. Clone the repository.
2. Copy `.env.example` to `.env` and fill in your Zitadel details.
```dotenv
# Port number where your Spring Boot server will listen for incoming HTTP requests.
PORT=3000
# Session timeout in seconds. Users will be automatically logged out after this
# duration of inactivity. 3600 seconds = 1 hour.
SESSION_DURATION=3600
# Your Zitadel instance domain URL. Include the full https:// URL.
ZITADEL_DOMAIN="https://your-zitadel-domain"
# Application Client ID from your Zitadel application settings.
ZITADEL_CLIENT_ID="your-client-id"
# Provide a randomly generated string here.
ZITADEL_CLIENT_SECRET="your-randomly-generated-client-secret"
```
3. Build and start the server:
```bash
# 1. Clone the repository
git clone [email protected]:zitadel/example-auth-spring.git
cd example-auth-spring
# 2. Build the project and download dependencies
mvn clean install
# 3. Start the development server
mvn spring-boot:run
```
4. Open `http://localhost:3000` and walk through login → profile → logout.
---
## Learn more and resources
* [PKCE concept](https://oauth.net/2/pkce/)
* [Federated logout](https://zitadel.com/docs/guides/integrate/login/oidc/logout)
* [OIDC integration guide](https://zitadel.com/docs/guides/integrate/login/oidc/login-users)
* [Spring Boot documentation](https://spring.io/projects/spring-boot)
* [Spring Security documentation](https://spring.io/projects/spring-security)
* [Example repository](https://github.com/zitadel/example-auth-spring)