1 |
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2 | 'use strict';
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3 |
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4 |
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5 |
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6 | let app = require('express')();
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7 | let timestamp = require('time-stamp');
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8 | let _ = require('lodash');
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9 | let ip = require('ip');
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10 | let nanoid = require('nanoid');
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11 | let axios = require('axios');
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12 | const bodyParser = require('body-parser');
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13 | const jwt = require('jsonwebtoken');
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14 |
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15 |
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16 | const wsName = require('../../package.json').name;
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17 | const wsVersion = require('../../package.json').version;
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18 | const wsClientConfig = require('../../wsClientConfig.json');
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19 | const wsCoreKey = wsClientConfig.wsCoreKey;
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20 | const wsPort = wsClientConfig.wsPort;
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21 |
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22 | let apigwPath = null;
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23 | let tokenForReq = null;
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24 |
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25 | const instanceID = nanoid(10);
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26 |
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27 |
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28 |
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29 | app.use(bodyParser.json());
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30 | app.use(bodyParser.urlencoded({ extended: true}));
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31 |
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32 |
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33 | let socketServer = jwt.decode(wsCoreKey, {complete: true}).payload.wsEventBusAddress;
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34 | let systemName = jwt.decode(wsCoreKey, {complete: true}).payload.systemName;
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35 | const wsType = jwt.decode(wsCoreKey, {complete: true}).payload.wsType;
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36 |
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37 | let socket = require('socket.io-client')(socketServer,{
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38 | query: {
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39 | token: wsCoreKey,
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40 | wsName: wsName,
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41 | instanceID: instanceID,
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42 | wsType: wsType,
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43 | }
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44 | });
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45 |
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46 | let awaitedEvents = [];
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47 | let awaitedRequests = [];
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48 |
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49 | let wsStartData = {
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50 | wsName: wsName,
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51 | wsVersion: wsVersion,
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52 | awaitedEvents: awaitedEvents,
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53 | awaitedRequests: awaitedRequests,
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54 | instanceParams:{
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55 | instanceID: instanceID,
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56 | instanceIP: ip.address(),
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57 | instancePort: wsPort}
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58 | };
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59 |
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60 |
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61 |
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62 | function sendStartData(){
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63 | socket.emit('wsStart', wsStartData);
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64 | }
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65 |
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66 |
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67 | socket.on('connect', function() {
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68 | setTimeout( sendStartData, 2000);
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69 |
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70 | });
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71 |
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72 |
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73 | socket.on('afterCoreRestart', function(data) {
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74 |
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75 | setTimeout( sendStartData, 2000);
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76 |
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77 | });
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78 |
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79 | socket.on('coreIsDisabled', function(data) {
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80 | console.log(data);
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81 | });
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82 |
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83 |
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84 | socket.on('infrastructureStart', function(data) {
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85 |
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86 | if (systemName !=='infrastructure.core'){
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87 | setTimeout( sendStartData, 2000);
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88 | }
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89 |
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90 |
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91 | });
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92 |
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93 |
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94 | socket.on('infrastructureStop', function(data) {
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95 | console.log(data);
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96 | });
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97 |
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98 | socket.on('regiseredInSystem', function(data) {
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99 | console.log('Инстанс сервиса зарегистрирован в системе');
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100 |
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101 | tokenForReq = data.tokenForReq;
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102 | });
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103 |
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104 | socket.on('error', (error) => {
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105 | console.log(error)
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106 | });
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107 |
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108 | socket.on('apigwPath', function(data) {
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109 | apigwPath = data.apigwPath
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110 | });
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111 |
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112 |
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113 | async function on (eventName, ...temps) {
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114 | let right = {};
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115 | let onEventAction = null;
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116 | if (temps.length === 2) {
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117 | console.log('Есть параметры, проверяем кому доступен/или кому не доступен');
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118 | if (!temps[0].forFS){right.forFS = 0} else {right.forFS = temps[0].forFS}
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119 | if (!temps[0].forBS){right.forBS = 0} else {right.forBS = temps[0].forBS}
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120 | onEventAction = temps[1];
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121 | } else {
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122 | console.log('Недоступен никому');
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123 | right = {forFS: 0, forBS: 0};
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124 | onEventAction = temps[0];
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125 | }
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126 |
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127 | function step1 (data){
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128 |
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129 | let dataToChangeEventState = {'eventId':data.eventId,'eventState':'received'};
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130 | socket.emit('changeEventState', dataToChangeEventState);
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131 | }
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132 | async function step2 (data){
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133 | try {
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134 | await onEventAction(data);
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135 | step3(data);
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136 | } catch (err) {
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137 |
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138 | let dataToChangeEventState = {'eventId':data.eventId,'eventState':'error'};
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139 | socket.emit('changeEventState', dataToChangeEventState);
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140 | }
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141 | }
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142 | function step3 (data){
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143 |
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144 | let dataToChangeEventState = {'eventId':data.eventId,'eventState':'succsess'};
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145 | socket.emit('changeEventState', dataToChangeEventState);
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146 | }
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147 | function run (data){
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148 | step1(data);
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149 | step2(data);
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150 | }
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151 |
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152 | socket.on(eventName, function(data){
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153 | run(data)
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154 | });
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155 |
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156 | awaitedEvents.push({eventName:eventName, right: right})
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157 | }
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158 |
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159 | function emit (eventName, ...temps) {
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160 |
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161 |
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162 |
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163 | let right = {};
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164 | let data = null;
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165 | if (temps.length === 2) {
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166 |
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167 | if (!temps[0].forFS){right.forFS = 0} else {right.forFS = temps[0].forFS}
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168 | if (!temps[0].forBS){right.forBS = 0} else {right.forBS = temps[0].forBS}
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169 | data = temps[1];
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170 | } else {
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171 | right = {forFS: 0, forBS: 0};
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172 | data = temps[0];
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173 | }
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174 | let eventData = {'eventName':eventName, right, data};
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175 |
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176 | socket.emit('universalEvent', eventData);
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177 | }
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178 |
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179 |
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180 | app.use(function(req, res, next){
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181 | if (req.method ==='OPTIONS'){
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182 | next();
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183 | }
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184 | else {
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185 |
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186 |
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187 | if ((['GET', 'POST', 'PUT', 'DELETE'].includes(req.method)) && ( req.headers.toinstanceid === instanceID)){
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188 | next();
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189 | } else {
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190 | return res.send({result: 'error', reason: `Запрос к сервису ${wsName} минуя apigw`})
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191 | }
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192 |
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193 | }
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194 | });
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195 |
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196 | async function get (name, next) {
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197 | awaitedRequests.push({methodName:name, methodType: 'GET'});
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198 | app.get(name, next)
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199 | }
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200 | async function post (name, next) {
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201 | awaitedRequests.push({methodName:name, methodType: 'POST'});
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202 | app.post(name, next)
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203 | }
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204 | async function put (name, next) {
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205 | awaitedRequests.push({methodName:name, methodType: 'PUT'});
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206 | app.put(name, next)
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207 | }
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208 | async function del (name, next) {
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209 | awaitedRequests.push({methodName:name, methodType: 'DELETE'});
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210 | app.delete(name, next)
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211 | }
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212 |
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213 | async function callGet (wsNameAndMethod, axiParams ) {
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214 | let fullPath = `${apigwPath}/${wsNameAndMethod}`;
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215 | const axiosRes = await axios.get(fullPath, {params:axiParams, headers: {tokenForReq:tokenForReq}});
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216 | return axiosRes.data
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217 | }
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218 |
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219 | async function callPost (wsNameAndMethod, axiParams ) {
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220 | let fullPath = `${apigwPath}/${wsNameAndMethod}`;
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221 | const axiosRes = await axios.post(fullPath, axiParams, {headers: {tokenForReq:tokenForReq}});
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222 | return axiosRes.data
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223 | }
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224 |
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225 | async function callPut (wsNameAndMethod, axiParams ) {
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226 | let fullPath = `${apigwPath}/${wsNameAndMethod}`;
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227 | const axiosRes = await axios.put(fullPath, axiParams, {headers: {tokenForReq:tokenForReq}});
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228 | return axiosRes.data
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229 | }
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230 |
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231 | async function callDel (wsNameAndMethod, axiParams ) {
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232 | let fullPath = `${apigwPath}/${wsNameAndMethod}`;
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233 |
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234 | const axiosRes = await axios.delete(fullPath, {params:axiParams, headers: {tokenForReq:tokenForReq}});
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235 | return axiosRes.data
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236 | }
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237 |
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238 | async function callAxiGet (axiPath, axiParams ) {
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239 | let allParams = {fromWsName:wsName, fromInstanceID:instanceID};
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240 | if (axiParams !== undefined) {
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241 | Object.assign(axiParams, allParams);
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242 | }
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243 | const axiosRes = await axios.get(axiPath, {params:allParams});
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244 | return axiosRes.data
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245 | }
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246 |
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247 | async function callAxiPost (axiosPath) {
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248 | const axiosRes = await axios.post(axiosPath);
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249 | return axiosRes.data
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250 | }
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251 |
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252 |
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253 | app.listen(wsPort, function(){
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254 | console.log(`${timestamp('[DD-MM-YYYY HH:mm:ss.ms]')}: Сервис ${wsName} запущен на ${wsPort} порту`)
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255 | });
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256 |
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257 | module.exports = {
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258 |
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259 |
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260 | get: get,
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261 | post: post,
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262 | put: put,
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263 | del: del,
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264 | // Для вызова межсервисных апи
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265 | callGet: callGet,
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266 | callPost: callPost,
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267 | callPut: callPut,
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268 | callDel: callDel,
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269 | // Для вызова внешних апи
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270 | callAxiGet: callAxiGet,
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271 | callAxiPost: callAxiPost,
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272 | // Работа с событиями
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273 | on: on,
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274 | emit: emit
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275 | }; |
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