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app.js
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/*
* Copyright 2018 IBM Corp. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
var request = require('request');
var yargs = require('yargs');
var express = require('express');
var args = yargs
.default('port', 8090)
.default('model', 'http://localhost:5000')
.argv;
var app = express();
app.use(express.static('static'));
app.all('/model/:route', function(req, res) {
req.pipe(request(args.model + req.path))
.on('error', function(err) {
console.error(err);
res.status(500).send('Error connecting to the model microservice');
})
.pipe(res);
});
app.listen(args.port);
console.log('Web App Started on Port ' + args.port);
console.log('Using Model Endpoint: ' + args.model);
console.log('Press Ctrl-C to stop...');