1 | var fileExists = require('fs').existsSync,
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2 | path = require('path');
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3 |
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4 | var log = require('xqnode-logger'),
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5 | express = require('express'),
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6 | glob = require('glob'),
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7 | async = require('async');
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8 |
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9 | module.exports = function() {
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10 | "use strict";
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11 |
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12 | var app, cbDone;
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13 |
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14 | var ExpressServer = function(conf) {
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15 | conf = conf || {};
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16 |
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17 |
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18 | if (conf.logLevel) {
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19 | log.setLevel(conf.logLevel);
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20 | }
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21 | else {
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22 | log.setLevel('sys');
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23 | }
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24 |
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25 |
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26 | this.port = conf.port || 3000;
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27 |
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28 |
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29 | this.name = conf.name || 'Express server';
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30 |
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31 |
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32 | this.baseDir = conf.baseDir || process.cwd();
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33 |
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34 |
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35 | this.apiRoute = conf.apiRoute || null;
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36 |
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37 | this.allRoutes = [];
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38 |
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39 | app = express();
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40 | app.express = express;
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41 | this.app = app;
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42 | };
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43 |
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44 | |
45 |
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46 |
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47 |
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48 |
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49 | ExpressServer.prototype.start = function(opts, callback) {
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50 | if (typeof opts === 'function') {
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51 | callback = opts;
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52 | opts = null;
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53 | }
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54 |
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55 | opts = opts || {
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56 | disableServer: false
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57 | };
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58 |
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59 | cbDone = false;
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60 | if (!callback) {
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61 | callback = function() {};
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62 | }
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63 |
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64 | app.addRoute = function(method, path, info, options, callback) {
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65 | if (typeof options === 'function') {
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66 | callback = options;
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67 | options = null;
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68 | }
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69 |
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70 | var fn = Array.prototype.slice.call(arguments);
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71 | while(fn.length > 0 && typeof fn[0] !== 'function') {
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72 | fn.shift();
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73 | }
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74 |
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75 | fn.unshift(path);
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76 | app[method].apply(app, fn);
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77 | this.allRoutes.push({
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78 | method: method,
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79 | path: path,
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80 | info: info,
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81 | options: options,
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82 | callback: callback
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83 | });
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84 | }.bind(this);
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85 |
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86 | log.sys('Starting ' + this.name);
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87 | log.sys(' ... environment:', app.get('env'));
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88 | log.sys(' ... set base dir to:', this.baseDir);
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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 | app.baseDir = this.baseDir;
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95 |
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96 | var jobs = [];
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97 |
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98 |
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99 | var envConf = path.join(this.baseDir, 'server/env', app.get('env') + '.js');
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100 | if (fileExists(envConf)) {
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101 | jobs.push(function(callback) {
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102 | log.sys(' ... load environment config');
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103 | require(envConf).call(this, app, callback);
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104 | }.bind(this));
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105 | }
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106 | else {
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107 | log.sys(' ... no environment config found!');
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108 | }
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109 |
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110 |
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111 | var expressFile = path.join(app.baseDir, 'server/express.js');
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112 | if (fileExists(expressFile)) {
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113 | jobs.push(function(callback) {
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114 | log.sys(' ... Load express.js');
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115 | require(expressFile)(app, callback);
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116 | }.bind(this));
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117 | }
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118 |
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119 |
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120 | var databaseFile = path.join(app.baseDir, 'server/database.js');
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121 | if (fileExists(databaseFile)) {
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122 | jobs.push(function(callback) {
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123 | log.sys(' ... Load database.js');
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124 | require(databaseFile)(app, callback);
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125 | }.bind(this));
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126 | }
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127 |
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128 |
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129 | if (opts.disableRoutes !== true) {
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130 | jobs.push(function(callback) {
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131 | var routesDir = path.join(this.baseDir, 'routes/**/*.js');
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132 | var files = glob.sync(routesDir);
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133 | if (files.length !== 0) {
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134 | files.forEach(function(file) {
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135 | log.sys(' ... load route', file);
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136 | require(file).call(this, app, callback);
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137 | }.bind(this));
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138 | }
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139 | else {
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140 | callback();
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141 | }
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142 | }.bind(this));
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143 | }
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144 |
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145 |
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146 | if (this.apiRoute) {
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147 | jobs.push(function(callback) {
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148 | log.sys(' ... register api route', this.apiRoute);
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149 | require(path.join(__dirname, 'routes/api')).call(this, app);
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150 | callback();
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151 | }.bind(this));
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152 | }
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153 |
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154 | async.series(jobs, function(err, result) {
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155 | if (cbDone) {
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156 | return;
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157 | }
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158 |
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159 | cbDone = true;
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160 |
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161 | if (err) {
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162 | log.err('Can\'t boot the server.');
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163 | log.err((err.message || err));
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164 | process.exit(1);
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165 | return;
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166 | }
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167 |
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168 | app.use(function(err, req, res, next) {
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169 | console.error(err.stack);
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170 | res.send(500, 'Something broke!\n');
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171 | });
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172 |
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173 | if (opts.disableServer !== true) {
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174 | log.sys(' ... listening on port ', this.port);
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175 | log.sys('Server started successfull!');
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176 | app.listen(this.port);
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177 | }
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178 |
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179 |
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180 | var initFile = path.join(app.baseDir, 'server/init.js');
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181 | if (fileExists(initFile)) {
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182 | require(initFile)(app, callback.bind(this, app));
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183 | }
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184 | else {
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185 |
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186 | callback.call(this, app);
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187 | }
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188 |
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189 | }.bind(this));
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190 |
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191 | return app;
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192 | };
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193 |
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194 | |
195 |
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196 |
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197 | ExpressServer.prototype.stop = function() {
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198 | log.sys('Stoping ' + this.name);
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199 | };
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200 |
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201 | |
202 |
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203 |
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204 | ExpressServer.prototype.handleJSONResult = function(err, data) {
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205 | if (err) {
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206 | log.err(err);
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207 | this.send(500, 'Something went wrong!');
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208 | return;
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209 | }
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210 |
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211 | this.json(data);
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212 | };
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213 |
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214 | return ExpressServer;
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215 |
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216 | }(); |
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