* [What is Portal.JS ?](#What-is-Portal.JS)
* [Features](#Features)
* [For developers](#For-developers)
* [Installation and setup](#Installation-and-setup)
* [Getting Started](#Getting-Started)
* [Tutorial](#Tutorial)
* [Build a single Frictionless dataset portal](#Build-a-single-Frictionless-dataset-portal)
* [Build a CKAN powered dataset portal](#Build-a-CKAN-powered-dataset-portal)
* [Architecture / Reference](#Architecture--Reference)
* [Component List](#Component-List)
* [UI Components](#UI-Components)
* [Dataset Components](#Dataset-Components)
* [View Components](#View-Components)
* [Search Components](#Search-Components)
* [Blog Components](#Blog-Components)
* [Misc Components](#Misc-Components)
* [Concepts and Terms](#Concepts-and-Terms)
* [Dataset](#Dataset)
* [Resource](#Resource)
* [View Spec](#view-spec)
* [Appendix](#Appendix)
* [What happened to Recline?](#What-happened-to-Recline?)
# What is Portal.JS
🌀 `portal.js` is a framework for rapidly building rich data portal frontends using a modern frontend approach. `portal.js` can be used to present a single dataset or build a full-scale data catalog/portal.
`portal.js` is built in Javascript and React on top of the popular [Next.js](https://nextjs.com/) framework. `portal` assumes a "decoupled" approach where the frontend is a separate service from the backend and interacts with backend(s) via an API. It can be used with any backend and has out of the box support for [CKAN](https://ckan.org/).
## Features
- 🗺️ Unified sites: present data and content in one seamless site, pulling datasets from a DMS (e.g. CKAN) and content from a CMS (e.g. wordpress) with a common internal API.
- 👩💻 Developer friendly: built with familiar frontend tech Javascript, React etc
- 🔋 Batteries included: Full set of portal components out of the box e.g. catalog search, dataset showcase, blog etc.
- 🎨 Easy to theme and customize: installable themes, use standard CSS and React+CSS tooling. Add new routes quickly.
- 🧱 Extensible: quickly extend and develop/import your own React components
- 📝 Well documented: full set of documentation plus the documentation of NextJS and Apollo.
### For developers
- 🏗 Build with modern, familiar frontend tech such as Javascript and React.
- 🚀 NextJS framework: so everything in NextJS for free React, SSR, static site generation, huge number of examples and integrations etc.
- SSR => unlimited number of pages, SEO etc whilst still using React.
- Static Site Generation (SSG) (good for small sites) => ultra-simple deployment, great performance and lighthouse scores etc
# Installation and setup
Before installation, ensure your system satisfies the following requirements:
- Node.js 10.13 or later
- Nextjs 10.0.3
- MacOS, Windows (including WSL), and Linux are supported
> Note: We also recommend instead of npm using `yarn` instead of `npm`.
>
Portal.js is built with React on top of Nextjs framework, so for a quick setup, you can bootstrap a Nextjs app and install portal.js as demonstrated in the code below:
```bash=
## Create a react app
npx create-next-app
# or
yarn create next-app
```
After the installation is complete, follow the instructions to start the development server. Try editing pages/index.js and see the result on your browser.
> For more information on how to use create-next-app, you can review the [create-next-app](https://nextjs.org/docs/api-reference/create-next-app) documentation.
Once you have Nextjs created, you can install portal.js:
```bash=
yarn add https://github.com/datopian/portal.js.git
```
You're now ready to use portal.js in your next app. To test portal.js, open your `index.js` file in the pages folder. By default you should have some autogenerated code in the `index.js` file:
Which outputs a page with the following content:

Now, we are going to do some clean up and add a table component. In the `index.js` file, import a [Table]() component from portal as shown below:
```javascript
import Head from 'next/head'
import { Table } from 'portal' //import Table component
import styles from '../styles/Home.module.css'
export default function Home() {
const columns = [
{ field: 'id', headerName: 'ID' },
{ field: 'firstName', headerName: 'First name' },
{ field: 'lastName', headerName: 'Last name' },
{ field: 'age', headerName: 'Age' }
];
const rows = [
{ id: 1, lastName: 'Snow', firstName: 'Jon', age: 35 },
{ id: 2, lastName: 'Lannister', firstName: 'Cersei', age: 42 },
{ id: 3, lastName: 'Lannister', firstName: 'Jaime', age: 45 },
{ id: 4, lastName: 'Stark', firstName: 'Arya', age: 16 },
{ id: 7, lastName: 'Clifford', firstName: 'Ferrara', age: 44 },
{ id: 8, lastName: 'Frances', firstName: 'Rossini', age: 36 },
{ id: 9, lastName: 'Roxie', firstName: 'Harvey', age: 65 },
];
return (
)
}
```
Now, your page should look like the following:

> **Note**: You can learn more about individual portal components, as well as their prop types in the [components reference](#Component-List).
___
# Getting Started
If you're new to Portal.js we recommend that you start with the step-by-step guide below. You can also check out the following examples of projects built with portal.js.
* [A portal for a single Frictionless dataset](#Build-a-single-Frictionless-dataset-portal)
* [A portal with a CKAN backend](#Build-a-CKAN-powered-dataset-portal)
> The [`examples` directory](https://github.com/datopian/portal.js/tree/main/examples) is regularly updated with different portal examples.
If you have questions about anything related to Portal.js, you're always welcome to ask our community on [GitHub Discussions](https://github.com/datopian/portal.js/discussions).
___
# Tutorial
## Build a single Frictionless dataset portal
This tutorial will guide you through building a portal for a single Frictionless dataset.
In this tutorial, you’ll learn Portal.js basics by creating a very simple portal app. [Here’s](https://portal-js.vercel.app/) an example of the final result.
Let’s get started!
> This tutorial assumes basic knowledge of JavaScript, React and Nextjs. If you are not familiar with React or Nextjs, it is advisable to learn them first. We provide some links below to get you started:
* [Learn NextJS](https://nextjs.org/docs/getting-started)
* [Getting started with React](https://reactjs.org/docs/getting-started.html#learn-react)
### Setup
TODO
## Build a CKAN powered dataset portal
TODO
___
# Architecture / Reference
## Component List
Portal.js supports many components that can help you build amazing data portals similar to [this](https://catalog-portal-js.vercel.app/) and [this](https://portal-js.vercel.app/).
In this section, we'll cover all supported components in depth, and help you understand their use as well as the expected properties.
Components are grouped under the following sections:
* [UI](https://github.com/datopian/portal.js/tree/main/src/components/ui): Components like Nav bar, Footer, e.t.c
* [Dataset](https://github.com/datopian/portal.js/tree/main/src/components/dataset): Components used for displaying a Frictionless dataset and resources
* [Search](https://github.com/datopian/portal.js/tree/main/src/components/search): Components used for building a search interface for datasets
* [Blog](https://github.com/datopian/portal.js/tree/main/src/components/blog): Components for building a simple blog for datasets
* [Views](https://github.com/datopian/portal.js/tree/main/src/components/views): Components like charts, tables, maps for generating data views
* [Misc](https://github.com/datopian/portal.js/tree/main/src/components/misc): Miscellaneous components like errors, custom links, etc used for extra design.
### UI Components
In the UI we group all components that can be used for building generic page sections. These are components for building sections like the Navigation bar, Footer, Side pane, Recent datasets, e.t.c.
#### [Nav Component](https://github.com/datopian/portal.js/blob/main/src/components/ui/Nav.js)
To build a navigation bar, you can use the `Nav` component as demonstrated below:
```javascript
import { Nav } from 'portal'
export default function Home(){
const navMenu = [{ title: 'Blog', path: '/blog' },
{ title: 'Search', path: '/search' }]
return (
<>