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backend/README.md
Andriy Oblivantsev e00280b653
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Merge branch 'feature/assets-s3-sharing'
Integrate asset metadata/storage support, TypeScript client asset APIs, docs updates, and the Leaflet demo while resolving conflicts with recent challenge IP/login persistence changes on main.

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# Momswap Geo Backend
Go backend service for user-owned GeoJSON feature collections with Ed25519 authentication and invitation-based onboarding.
## What is implemented
- Ed25519 challenge-response auth (`/v1/auth/challenge`, `/v1/auth/login`)
- Hybrid invitation onboarding (signed invite payload + inviter lineage)
- User registration with ownership proof (`/v1/auth/register`)
- Per-user collections and Point feature CRUD endpoints
- Static no-build frontend (`web/`) using Vue + Vuetify from CDN
- Reusable TypeScript API client (`libs/geo-api-client`) using `@noble/ed25519`
- Bun tests for the TS client and Go tests for API flows
- Gitea CI workflow running Go and Bun test suites
## Quick start
```bash
go test ./...
go run ./cmd/api
```
Run tests via Docker (avoids local permission issues, e.g. `var/`):
```bash
docker compose --profile test run --rm test
```
Primary deployed base URL: `https://momswap.produktor.duckdns.org/`.
Local default (for development): `http://localhost:8122`.
Optional environment variables:
- `ADDR` (default `:8122`)
- `ADMIN_PUBLIC_KEY`**required for registration**: bootstrap admin + service key for `register-by-signature`. Generate with `./bin/gen-admin-key.sh`
- `SERVICE_PUBLIC_KEY` (public key users sign to register; defaults to `ADMIN_PUBLIC_KEY`)
**Deployment:** Set `ADMIN_PUBLIC_KEY` before starting. Without it, `/v1/service-key` returns 503 and registration is disabled.
## Docker Compose
Generate server keys (creates `etc/server-service.*`), then build and run:
```bash
./bin/gen-server-keys.sh
COMPOSE_BAKE=true docker compose up --build -d
```
Or use `./bin/up.sh` which runs the key generation if needed.
This starts:
- `db` (`postgis/postgis`) on `5432` inside the container, exposed as **`7721`** on the host for remote access
- `api` on `8122` — uses PostgreSQL via `DATABASE_URL` (migrations run on startup)
- `minio` (S3-compatible storage) with admin UI on `8774` and internal S3 API on `9000`
**Remote DB access** (e.g. `postgres://momswap:momswap@HOST_IP:7721/momswap?sslmode=disable`): The init script `etc/pg-init-remote.sh` configures `pg_hba.conf` for remote connections on fresh installs. If the DB was initialized before that was added, run once: `./bin/fix-pg-remote.sh`
Stop the service:
```bash
docker compose down
```
For local development with auto-rebuild on file changes:
```bash
COMPOSE_BAKE=true docker compose --profile dev up --watch
```
Notes:
- `api` service listens on `8122` inside the container, mapped to host `8122` (reverse proxy at `https://momswap.produktor.duckdns.org`).
- `api` service uses the production `runtime` image target.
- `api-dev` profile uses the `dev` image target and Docker Compose watch.
- DB defaults can be overridden via `POSTGRES_DB`, `POSTGRES_USER`, `POSTGRES_PASSWORD`.
- S3 defaults can be overridden via `S3_ENDPOINT`, `S3_BUCKET`, `S3_REGION`, `S3_ACCESS_KEY`, `S3_SECRET_KEY`, `S3_USE_PATH_STYLE`, `S3_USE_TLS`.
## Frontend
Frontend is served by the Go backend at runtime.
Example:
```bash
go run ./cmd/api
```
Then visit:
- Production: `https://momswap.produktor.duckdns.org/web/`
- Local: `http://localhost:8122/web/`
- Local Leaflet demo: `http://localhost:8122/web/leaflet-demo.html`
## Documentation
| Doc | Description |
|-----|-------------|
| [docs/frontend-development.md](docs/frontend-development.md) | Demo app (`web/`), client build, local dev |
| [docs/typescript-frontend-integration.md](docs/typescript-frontend-integration.md) | TypeScript client API, integration flow, examples |
| [docs/ed25519-security-use-cases.md](docs/ed25519-security-use-cases.md) | Ed25519 auth flows, registration, signatures |
| [docs/geo-auth-backend-plan.md](docs/geo-auth-backend-plan.md) | Architecture and planning |
| [docs/assets-storage-and-sharing.md](docs/assets-storage-and-sharing.md) | Asset metadata, dedup, visibility rules, and `properties.assets` contract |
| [docs/docker-minio-local-dev.md](docs/docker-minio-local-dev.md) | MinIO compose topology, bucket bootstrap, and local verification |
## API client library
Path: `libs/geo-api-client`
```bash
cd libs/geo-api-client
bun install
bun test
bun run build
```
## CI
Workflow: `.gitea/workflows/ci.yml`
- `go test ./...`
- `bun test` in `libs/geo-api-client`
## Testing policy
- Keep fast unit tests as the default (`go test ./...`).
- If a test requires a real Postgres instance, use embedded/ephemeral Postgres in the test process or test fixture lifecycle.
- Do not require manually running an external Postgres container for routine test runs.