remote-data-react

Promise-based React data loader

Install

npm install --save remote-data-react

Basic usage

import React, { Component } from 'react';
import RemoteData from 'remote-data-react';

export default class App extends Component {
  constructor(props) {
    super(props)
    this.state = {
      books: RemoteData.NotAsked()
    };
  }

  componentDidMount() {
    fetch('http://my.api/v2/books')
    .then(response => this.setState({
      books: RemoteData.Success(response.data)
    }))
    .catch(response => this.setState({
      books: RemoteData.Failure(response.data.errors)
    }))
  }

  render () {
    return (
      <div>
        <h1>JavaScript Books</h1>
        <RemoteData.Case
          model={this.state.books}
          defaults={() => (
            <span>Loading...</span>
          )}
          success={(books) => (
            <ul>
              // Display content
            </ul>
          )}
          failure={() => (
            <span>Something went wrong!</span>
          )}/>
      </div>
    )
  }
}

Multiple models

import React, { Component } from 'react';
import RemoteData from 'remote-data-react';

export default class App extends Component {
  constructor(props) {
    super(props)
    this.state = {
      books: RemoteData.NotAsked(),
      authors: RemoteData.NotAsked()
    };
  }

  componentDidMount() {
    fetch('http://my.api/v2/books')
    .then(response => this.setState({
      books: RemoteData.Success(response.data)
    }))
    .catch(response => this.setState({
      books: RemoteData.Failure(response.data.errors)
    }));
    
    
    fetch('http://my.api/v2/authors')
    .then(response => this.setState({
      authors: RemoteData.Success(response.data)
    }))
    .catch(response => this.setState({
      authors: RemoteData.Failure(response.data.errors)
    }));
  }

  render () {
    return (
      <div>
        <h1>JavaScript Books</h1>
        <RemoteData.Case
          model={RemoteData.join([this.state.books, this.state.authors])}
          defaults={() => (
            <span>Loading...</span>
          )}
          success={([books, authors]) => {
            //Display content
          }}
          failure={() => (
            <span>Something went wrong!</span>
          )}/>
      </div>
    )
  }
}

Usage with Redux thunk

// actions.js
import { dispatchPromise } from 'remote-data-react/redux';

const GET_BOOKS = 'GET_BOOKS';
const GET_AUTHORS = 'GET_AUTHORS';

export const getBooks = () => (dispatch) => {
  return dispatchPromise({
    dispatch,
    promise: Books.getAll(),
    actionType: GET_AUTHORS,
    mapSuccess: ({ data }) => data,
    mapFailure: error => error.response.data,
  });
};

export const getAuthors = () => (dispatch) => {
  return dispatchPromise({
    dispatch,
    promise: Authors.getAll(),
    actionType: GET_AUTHORS,
    mapSuccess: ({ data }) => data,
    mapFailure: error => error.response.data,
  });
};

//reducer.js
import { GET_BOOKS, GET_AUTHORS } from './actions';
import RemoteData from 'lib/remote-data';

export const INITIAL_STATE = {
  books: RemoteData.NotAsked(),
  authors: RemoteData.NotAsked(),
};

export default (state = INITIAL_STATE, action) => {
  switch (action.type) {
    case GET_BOOKS:
      return {
        ...state,
        books: action.payload,
      };
    case GET_AUTHORS:
      return {
        ...state,
        authors: action.payload,
      };
    default:
      return state;
  }
};

import React, { Component } from 'react';
import RemoteData from 'remote-data-react';

export default class App extends Component {
  constructor(props) {
    super(props)
  }

  componentDidMount() {
    this.props.getBooks();
    this.props.getAuthors();
  }

  render () {
    return (
      <div>
        <h1>JavaScript Books</h1>
        <RemoteData.Case
          model={RemoteData.join([this.props.books, this.props.authors])}
          loading={() => (
            <span>Loading...</span>
          )}
          success={([books, authors]) => {
            //Display content
          }}
          failure={() => (
            <span>Something went wrong!</span>
          )}/>
      </div>
    )
  }
}

ISC License

Copyright (c) 2019 Gert Hengeveld

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.