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'use strict';
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import React from 'react-native';
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import CONFIG from '../constants/config';
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import DeviceInfo from 'react-native-device-info';
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import queryString from 'query-string';
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import md5 from 'md5';
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export default class Request {
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constructor() {
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this.config = process.env.NODE_ENV === `development` ? CONFIG.dev : CONFIG.prd;
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this.baseUrl= this.config.baseUrl;
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this.privateKey = this.config.privateKey;
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}
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async get(opts) {
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try {
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let response = await this._fetch({
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method: 'GET',
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url: opts.url,
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});
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let data = await this._parseResponse(response);
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return data;
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} catch(error) {
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throw(error);
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}
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}
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async post(opts) {
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try {
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let response = await this._fetch({
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method: 'POST',
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url: opts.url,
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body: opts.body,
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});
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let data = await this._parseResponse(response);
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return data;
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} catch(error) {
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throw(error);
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}
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}
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async _parseResponse(response) {
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if (response.status !== 200) {
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let res = JSON.parse(response._bodyInit);
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throw(res);
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}
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let json = await response.json();
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if (json.code == 200) {
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return json.data;
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} else {
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throw({code: json.code, message: json.message});
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}
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}
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/**
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* ### _fetch
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*/
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async _fetch(opts) {
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let defaultOpts = {
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method: 'GET',
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url: null,
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body: null,
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callback: null
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};
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opts = {
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...defaultOpts,
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...opts
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};
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opts.body = this._createBody();
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let reqOpts = {
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method: opts.method,
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headers: {
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}
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};
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if (opts.method === 'GET' || opts.method === 'POST') {
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reqOpts.headers['Accept'] = 'application/json';
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}
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let queryStrigPair = this._signParam(opts.body);
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if (opts.method === 'GET' || opts.method === 'HEAD' || opts.method === 'DELETE') {
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opts.url = opts.url + '?' + queryStrigPair;
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}
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if (opts.body && opts.method !== 'GET' && opts.method !== 'HEAD') {
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reqOpts.body = queryStrigPair;
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}
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return await fetch(this.baseUrl + opts.url, reqOpts);
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}
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_publicParams() {
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let app_version = DeviceInfo.getBuildNumber();
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let os_version = DeviceInfo.getSystemVersion();
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let client_type = React.Platform.OS === 'ios' ? 'iphone' : 'android';
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let {height, width} = React.Dimensions.get('window');
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let screen_size = width + 'x' + height;
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return {
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app_version,
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os_version,
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client_type,
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screen_size,
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};
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}
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_createBody(body) {
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let defaultBody = this._publicParams();
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let newBody = {
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...defaultBody,
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...body
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};
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return newBody;
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}
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_signParam(params) {
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let private_key = this.privateKey;
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let allParams = {
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...params,
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private_key
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}
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let paramsPair = queryString.stringify(allParams)
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let client_secret = md5(paramsPair);
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delete allParams.private_key;
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let resultParams = {
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...allParams,
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client_secret
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}
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return queryString.stringify(resultParams);
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}
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};
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...
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...
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