go-tell/README.md
2026-09-19 16:45:24 +02:00

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# CMS project
This repository contains a Go backend and React frontend for the CMS.
## Backend
The backend targets Go 1.27.1 and uses a layered design (`internal/web`, `service`, `repository`, `persistence`, `security`, and `domain`). A single PostgreSQL database stores content; Goose migrations run automatically at startup.
```sh
go run ./cmd/server
```
Configuration is read from environment variables (see `.env`). The API includes `GET /health`, `GET /api/auth/session`, `GET /api/protected`, `GET /api/content`, `GET /api/content/categories`, `GET /api/content/badges`, and `GET|PUT /api/content/:slug`.
## Single sign-on
The CMS never signs anyone in and stores no users, admins, or sessions. An identity-aware proxy (oauth2-proxy, Authelia, Cloudflare Access, ...) authenticates the owner and forwards a header on every accepted request:
- **Header present** → the request is the owner and can edit content (`canEdit: true`).
- **Header absent** → the request is anonymous and content is read-only (`canEdit: false`).
Configure the header with `CMS_SSO_HEADER` (default `X-SSO-Token`). Set `CMS_SSO_TOKEN` to a shared secret to require an exact value; leave it empty to trust any non-empty forwarded value. `CMS_SSO_COOKIE` optionally names a cookie fallback.
Because the backend trusts the forwarded header, it must only be reachable through the proxy. Bind it to the loopback interface or a private network, and make sure the proxy strips any client-supplied copy of that header.
## Content
Content supports one reusable category per document plus any number of badges. The anonymous `GET /api/content` endpoint accepts `category=engineering` and repeated `badge=go&badge=docker` filters; selected badges are combined with AND semantics. `GET /api/content/categories` returns the category dropdown values. The frontend applies these filters immediately when the category changes or when a badge is entered.
Editing requires the SSO identity: `PUT /api/content/:slug` returns `401` without it. `GET /api/content/:slug` and the taxonomy endpoints are public.
```sh
make up # start PostgreSQL
make migrate # apply the PostgreSQL migrations
make seed # load repeatable sample content
make backend # run the Go server
make frontend # run the React app
make dev # up + migrate + backend + frontend
```