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zitadel/apps/docs/content/sdk-examples/go.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.
[[1]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L585-L640)
[[2]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L660-R607)
[[3]](diffhunk://#diff-eca12c0a30e25b4b46522ebf89465a03ba72a03f540796c979137931d8f92055L740-R687)
[[4]](diffhunk://#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5L2-R3)
[[5]](diffhunk://#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5L30-R30)
* 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)
[[2]](diffhunk://#diff-462b9ad1eabbb7d1c29bb9c36e4931eb180fd7190900e6d2babf8f4d66ad1c28R1-R39)
[[3]](diffhunk://#diff-e16ae25660ded787b10ac35dea96d5ecaacf895dae0afc8a9bd4382dc79a8c87R1-R7)
[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: Go
sidebar_label: Go
---
<table>
<tr>
<td width="100px">
<img width="100px" src="/docs/img/tech/golang.svg" alt="go logo"/>
</td>
<td>
<a href="https://go.dev/" target="_blank">Go</a> is an open-source, compiled programming language that is known for its simplicity, efficiency, and concurrency capabilities.
Get started integrating authentication to your Go Application by checking out our <a href="https://github.com/zitadel/zitadel-go" target="_blank">zitadel-go</a> SDK.
</td>
</tr>
</table>
### Resources
- [Example App Repository](https://github.com/zitadel/zitadel-go)
- [Go SDK](https://github.com/zitadel/zitadel-go)
- [Web APP Step-By-Step Guide](/examples/login/go)
- [API APP Step-By-Step Guide](/examples/secure-api/go)
- [Go OIDC Library](https://github.com/zitadel/oidc)
### Go SDK
The [zitadel-go](https://github.com/zitadel/zitadel-go) SDK is a wrapper around the [zitadel/oidc](https://github.com/zitadel/oidc) to integrate Login into your Web App and abstracts the handling of specific configurations for ZITADEL.
Additionally secure your business APIs and handle permission checks for your users.
Last part is the integration of the ZITADEL APIs to handle user and resource management.
The following features are covered by the SDK:
- Authentication in your Web App
- Authenticate your user with ZITADEL using OIDC
- Requesting ZITADEL userinfo endpoint to get user data
- Refresh Token
- Requesting User Roles from userinfo
- Check if user has specified role
- Logout
- Secure your APIs
- Authorization Check using OAuth2 Introspection
- Check User Roles on Endpoint
- Manage Resources through ZITADEL APIs
- Authenticate Service User
- Generated gRPC Clients for integrating ZITADEL API
- User, Organization, Project, etc. Management
The goal is to extend the SDK over the time with the following features:
- Build your own login UI using our Session API
### Go Examples
You can find different examples for building your Go application in the following package of the repository:
[zitadel-go/example](https://github.com/zitadel/zitadel-go/tree/next/example)
#### Web Application Example
What does the Web Application Example include:
- Home Page with Login Button
- Authenticating user with OIDC PKCE Flow
- Public Page: Accessible without authentication
- Private Page: Shows user information of authenticated user, only accessible after login
- Logout
[Example Web App](https://github.com/zitadel/zitadel-go/tree/next/example/app)
#### API Application Example
What does the API Application Example include:
- REST API Application secured with Spring Security and OAuth2
- Public Endpoint: Accessible without authentication
- Private Endpoint: Accessible with a token
- Administrator Endpoint: Accessible with a token of a user with an administrator role
[Example API App](https://github.com/zitadel/zitadel-go/tree/next/example/api/http)
### Step-By-Step Guide
For Go we do have two different Step-By-Step Guides.
One to create your web application with integrated login and one to create your API with permission checks for calling users.
The guides lead you through the whole process from configuring the right application in ZITADEL to a ready application with integrated login or authentication checks.
#### Web Application Guide
After completing the Step-By-Step Guide you will have:
1. Example Web Application with integrated ZITADEL Login
2. Example page accessible by authenticated user showing retrieved user information
4. Logout
5. Correct setup for your application in ZITADEL
[Web APP Step-By-Step Guide](/examples/login/go)
![](../../public/img/go/app-home.png)
![](../../public/img/go/app-profile.png)
#### API Application Guide
After completing the Step-By-Step Guide you will have:
1. Example REST API checking tokens against ZITADEL with OAuth2
2. Public Endpoint accessible by any user
3. Private Endpoint accessible by authenticated user
4. Private Endpoint accessible by user with role 'admin'
5. Correct setup for your application in ZITADEL
[API APP Step-By-Step Guide](/examples/secure-api/go)