fetch-component-data

fetch-component-data

Data fetching helper and Redux middlware for React components in Frameworkstein apps

fetchComponentDataMiddleware

Redux middleware to ensure container components get a chance to load their data when they're mounted. Detects connected-react-router route change actions and calls fetchData on the component of each matching route.

fetchComponentData

Expects a branch option, an array of matching routes provided by react-router. Calls fetchData on each route's component. Used to tie in the data loading story for Frameworkstein.

Best used in conjunction with redux-request-middleware or another method of returning a promise from dispatched actions. See there for more detailed docs.

Used internally by fl-react-server to ensure data is loaded before doing a server side render.

// MyPage.js

export default class MyPage extends React.Component {

  // Middleware will call this method on each route change
  // The store is provided, we can get the current state of the router from it via redux-router
  // We'll also need its dispatch method to dipatch actions from here
  // May return a promise or call the given callback function. Only useful if doing server side rendering, so the server renderer can delay rendering the page until the component has finished loading its data.
  static fetchData({store, action}/*, callback*/) {

    // As is the current action if we're transitioning between routes. 'action.payload' contains the props for the route we're transitioning to. Here for example we're getting router.params.id from it
    const { router } = store.getState()
    const id = ((action && action.payload && action.payload.params) || router.params).id
    
    // Assuming we're using redux-request-middleware to return a promise when dispatching this action
    return store.dispatch(loadMyPageContent())
  }

  // ...rest of the component goes below

  render() {
    // ...etc
  }
}