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SLICES / TECHNICAL FOLIO Nº 001FULL-STACK ASSEMBLIES — OPEN SOURCE
← Headless components

geocoder setup

Start with the parts you need. The service connects those parts to a provider; its configuration belongs to your app.

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1. Initialize an app

Run this once in your app folder. An existing initialized Next.js app can skip it.

npx install

2. Install the service registry

Add services/index.ts, the file `import "@/services"` loads: it registers every services/<service>/<config>.config.ts with @slices.sh/core. A provider setup writes the same file, so this step is for an app that has none yet. https://slices.sh/r/services.json

npx add services

3. Install the headless library

Add the React parts with npm. Their styling and composition belong to your app.

npm install @slices.sh/geocoder@^0.1.3

4. Install the service

Use the interactive installer below to choose a provider and its options. The command installs the packages, services/<service>/default.config.ts, services/index.ts and the API route. No hand-written fetch or provider wrapper is needed.

npx add geocoder.photon

Geocoder: Photon

Turn what someone types into an address, over OpenStreetMap's Photon. No key, no account. URL options: none.

npx add geocoder.photon

5. Load your configuration

In the client component using the headless parts, load the service registry before rendering a required Root. Keep the client directive first.

"use client"// services/index.ts comes from https://slices.sh/r/services.json (or any provider setup)import "@/services"

6. Provisioning is included

The slices.sh installation command provisions the required resources automatically. Restart your development server after credentials change.

7. Run your component

Required roots throw a setup error when no service is configured. A required capability can be named with enabled. Use enabled="optional" only when the feature is intentionally optional. Parts hide controls the configured provider cannot support.

npm run dev

Configure your installation

0

Before you start

The steps below run in a Next.js app with shadcn set up (it has a components.json). In an existing Next.js app, such as one from create-next-app, set shadcn up first:

npx shadcn@latest init -t next -b base -p nova

Or start fresh: the slices CLI creates the app and sets it up.

npx slices.sh install
1

Install the service registry

Adds services/index.ts, which import "@/services" loads. A provider setup writes the same file, so skip this if your app has one.

npx add services
2

Install the headless library

npm

Add the React parts to your app, then compose them with your own elements.

npm install @slices.sh/geocoder

Import from @slices.sh/geocoder/headless.

3

Install the service

Connect the parts to a provider. Skip this step if this service is already configured in your app.

Provider
npx add geocoder.photon

Adds service configuration and API routes to your app, with the provider dependencies. For a headless composition, add import "@/services" after "use client".

The slices CLI installs the service and provisions its required resources in one command.