ground-control

GroundControl

IMPORTANT! This a beta! Use cautiously until we release 1.0 (then strict semver)! Tests coming...

GroundControl simplifies React-Router/Redux single page applications:

• Organizes reducers based on route structure, and builds application state & replaces reducers on transition.
• Data fetching API to control when to render components & manage client / server differences (Universal API).

<Router
    history={browserHistory}
    render={(props) => (
      <GroundControl {...props} store={store} />
    )}>
  <Route path="/" reducer={rootReducer}>
    <IndexRoute reducer={indexReducer} />
    <Route path="/route-1" reducer={route1Reducer} />
  </Route>
</Router>

Demo Clone & npm i && npm start.

Install npm install ground-control --save-dev

---

Nested application state

Declare a reducer as a property on your routes. Global application state will automatically build. When a nested route changes, that level of state will clear, and reducers replaced...

{
  groundcontrol: {
    self: { currentUser }, // path: "/" -- root component / layout.
    child: {
      self: { items }, // path: "/items" -- 1st level route.
      child: {
        self: { item }, // path: "/items/:id" -- nested
      },
    },
  },
}

...and the data is automatically fed in to your route components.

// { self: { currentUser: 'Nick' }, child: { self: { items: ['a', 'b'] }, child: { self: { item: { quantity: 100 }}}}}
const LayoutComponent = ({ children, data, dispatch }) => (
  <div>
    <p>{data.currentUser}</p>
    <div>{children}</div>
  </div>
);

// { self: { items: ['a', 'b'] }, child: { self: { item: { quantity: 100 }}}}
const ItemsRouteComponent = ({ data }) => <p>{data.items.length}</p>;

// { self: { item: { quantity: 100 }}}
const ItemRouteComponent = ({ data }) => <p>{data.item.quantity}</p>;

Universal data fetching API

Inverse route lifecycle hooks - you tell the framework what to do...

async function asyncEnter(done, { clientRender, serverRender, dispatch, isClient }) => {
  clientRender();
  const topOfPageData = await fetchTopOfPage();
  dispatch(actions.loadTop(topOfPageData));
  serverRender();
  if (isClient()) {
    const bottomOfPageData = await fetchBottomOfPage();
    dispatch(actions.loadBottom(bottomOfPageData));
    done();
  }
};

Redux & friends

Plays nicely (hopefully)...

• React
• Redux
• React Router
• Universal rendering (isomorphic)
• Immutable.js
• Redux Simple Router
• React-Redux (if desired)
• Redux DevTools
• Thunk / middleware
• Redux-loop
• Others?

---

How to use

• Rationale
• Tutorial
• API Reference
• Road to V1
• Example 1 (Simple)
• Example 2 (Full)

Contribute

• API improvements
• Better documentation
• Unit tests

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. Multiple language translations are available at contributor-covenant.org

Why GroundControl as a name?

• Tribute to one of best artists ever
• Layer above your application to help you control data.
  • API to fetch data for your routes.
  • Clean up state from previous routes.
  • Updates store with new reducers.

Special thanks to ryan florence! Initially based on async-props.