http.js

import * as $ from 'jquery';
import * as _ from 'underscore';
import moment from 'moment';
import alertify from 'alertify.js';
import NProgress from 'nprogress';
require('nprogress/nprogress.css');

require('./http.css');
import config from '../config';


import {hashHistory, browserHistory} from 'react-router';
let history = hashHistory;
if (config.browserHistory) {
	history = browserHistory;
}

const error401 = (response) => {
	alertify.error(`Error <b>${response.status}</b> : ${response.statusText} <br> Session expired, please login again.`);
	history.replace('/logout');
};

const errorHandlerHttp = (promise) => {
	promise.fail((response)=> {
		if(response.status === 0) return; //Ignore error code 0
		if(response.status === 401) {
			error401(response);
			return;
		}
		alertify.error(`Error <b>${response.status}</b> : ${response.statusText}`);
	});
	return promise;
};

export const authRedirectionHandler = (promise) => {
	promise.fail((response)=> {
		if(response.status === 401) {
			error401(response);
		}
	});
	return promise;
};

let _progressRequests = [];
export const progressHttp = (promise) => {
	function _checkAllDone() {
		const pending = _progressRequests.filter((p) => {
			return p.readyState === 3;
		});

		if (pending.length === 0) {
			NProgress.done();
			_progressRequests = [];
		}
	}

	NProgress.start();
	_progressRequests.push(promise);
	promise.always(()=> {
		_checkAllDone();
	});
	return promise;
};

export const jsonHttp = (options) => {
	options.contentType = 'application/json; charset=UTF-8';
	options.dataType = 'json';
	return options;
};
export const textHttp = (options) => {
	options.contentType = 'text/plain; charset=UTF-8';
	return options;
};

export const jsonPayloadHttp = (options) => {
	let newData = _.mapObject(options.data, (val) => {
		return moment.isMoment(val) ? val.utc().format(config.dateRESTFormat) : val;
	});
	options.processData = false;
	options.data = JSON.stringify(newData);
	return options;
};

export const ajax = $.ajax;
export const progressAjax = _.compose(progressHttp, ajax);
export const defaultAjax = _.compose(progressHttp, errorHandlerHttp, ajax);
export const textAjax = _.compose(progressHttp, errorHandlerHttp, ajax, textHttp);
export const jsonAjax = _.compose(progressHttp, errorHandlerHttp, ajax, jsonHttp);
export const jsonPayloadAjax = _.compose(progressHttp, errorHandlerHttp, ajax, jsonPayloadHttp, jsonHttp);
export const jsonNoErrorAjax = _.compose(progressHttp, authRedirectionHandler, ajax, jsonPayloadHttp, jsonHttp);
export const parallelRequests =  $.when;