import axios from 'axios'

export default function createPost (params) { 
  const success = (result) => {
    dispatch({
      type: 'CREATE_POST_SUCCESS',
      payload: result
    })
    return result
  }

  const fail = (err) => {
    dispatch({
      type: 'CREATE_POST_FAIL',
      err
    })
    return err
  }

  return dispatch => {
    return axios.post('http://xxxxx', params)
    .then(success)
    .catch(fail)
  }
}

import axios from 'axios'

export default function createPost (params) { 
  const success = (result) => {
    dispatch({
      type: 'CREATE_POST_SUCCESS',
      payload: result
    })
    return result
  }

  const fail = (err) => {
    dispatch({
      type: 'CREATE_POST_FAIL',
      err
    })
    return err
  }

  return async dispatch => {
    try {
      const result = await axios.post('http://xxxxx', params)
      return success(result)
    } catch (err) {
      return fail(err)
    }
  }
}

import React, { Component } from 'react' 
import { connect } from 'react-redux' 
import { createPost } from '../actions/post'

class PostEditForm extends Component { 
  constructor(props) {
    super(props)
  }

  contributePost = e => {
    e.preventDefault()

    // .... get form values as params

    this.props.createPost(params)
    .then(response => {
      // show success message
    })
    .catch(err => {
      // show error tips
    })
  }

  render () {
    return (
      <form onSubmit={this.contributePost}>
        <input name="title"/>
        <textarea name="content"/>
        <button>Create</button>
      </form>
    )
  }
}

export default connect(null, dispatch => { 
  return {
    createPost: params => dispatch(createPost(params))
  }
})(PostEditForm)

import React, { Component } from 'react' 
import { connect } from 'react-redux' 
import { createPost } from '../actions/post'

class PostEditForm extends Component { 
  constructor(props) {
    super(props)
  }

  async contributePost = e => {
    e.preventDefault()

    // .... get form values as params

    try {
      const result = await this.props.createPost(params)
      // show success message
    } catch (err) {
      // show error tips
    }
  }

  render () {
    return (
      <form onSubmit={this.contributePost}>
        <input name="title"/>
        <textarea name="content"/>
        <button>Create</button>
      </form>
    )
  }
}

export default connect(null, dispatch => { 
  return {
    createPost: params => dispatch(createPost(params))
  }
})(PostEditForm)