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build a api to make calls into services.
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‎index.html‎

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<html>
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<head>
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<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
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integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u"
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crossorigin="anonymous"
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rel="stylesheet">
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<script src="https://code.jquery.com/jquery-3.2.1.min.js"
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integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="
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crossorigin="anonymous"></script>
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"
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integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa"
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crossorigin="anonymous"></script>
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</head>
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<body>
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<div class="container">
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<h2>Service Testing Interface <small>Mesos Playground</small></h2>
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<hr>
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<p class="lead">Use this page to make calls back into the cluster to test different parts of the system.</p>
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<hr>
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<div class="row">
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<h4>UUID->GENERATE</h4>
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<form class="col-md-12 form-inline" id="uuid_generate">
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<button type="submit" class="btn btn-default">Generate</button>
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</form>
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<div>Result: <span id="uuid_generate_result">0</span></div>
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</div>
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<hr />
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<div class="row">
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<h4>MATH->SUM</h4>
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<form class="col-md-12 form-inline" id="math_sum">
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<div class="form-group">
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<label for="math_sum_a">Left Addend: </label>
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<input type="text" class="form-control" id="math_sum_a" name="a" placeholder="Number">
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</div>
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<div class="form-group">
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<label for="math_sum_b">Right Addend: </label>
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<input type="text" class="form-control" id="math_sum_b" name="b" placeholder="Number">
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</div>
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<button type="submit" class="btn btn-default">SUM</button>
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</form>
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<div>Result: <span id="math_sum_result">0</span></div>
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</div>
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<hr />
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<div class="row">
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<h4>MATH->PRODUCT</h4>
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<form class="col-md-12 form-inline" id="math_product">
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<div class="form-group">
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<label for="math_product_a">Left Factor: </label>
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<input type="text" class="form-control" id="math_product_a" name="a" placeholder="Number">
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</div>
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<div class="form-group">
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<label for="math_product_b">Right Factor: </label>
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<input type="text" class="form-control" id="math_product_b" name="b" placeholder="Number">
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</div>
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<button type="submit" class="btn btn-default">PRODUCT</button>
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</form>
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<div>Result: <span id="math_product_result">0</span></div>
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</div>
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<hr />
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</div>
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<script type="text/javascript">
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$().ready(function () {
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$('#uuid_generate').submit(function(evt) {
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evt.preventDefault();
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$.ajax({
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method: 'GET',
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url: '/api/uuid',
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statusCode: {
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400: function(d) {
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$('#uuid_generate_result').text(d.responseJSON.message + " [FAILED]");
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}
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}
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}).done(function(d) {
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$('#uuid_generate_result').text(d.uuid + " [SUCCESS]");
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});
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});
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$('#math_sum').submit(function(evt) {
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evt.preventDefault();
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var a = Number(this.a.value) || this.a.value;
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var b = Number(this.b.value) || this.b.value;
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$.ajax({
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method: 'POST',
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url: '/api/math/sum',
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data: { a: a, b: b },
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statusCode: {
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400: function(d) {
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$('#math_sum_result').text(d.responseJSON.message + " [FAILED]");
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}
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}
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}).done(function(d) {
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$('#math_sum_result').text(d.sum + " [SUCCESS]");
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});
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});
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$('#math_product').submit(function(evt) {
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evt.preventDefault();
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var a = Number(this.a.value) || this.a.value;
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var b = Number(this.b.value) || this.b.value;
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$.ajax({
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method: 'POST',
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url: '/api/math/product',
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data: { a: a, b: b },
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statusCode: {
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400: function(d) {
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$('#math_product_result').text(d.responseJSON.message + " [FAILED]");
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}
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}
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}).done(function(d) {
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$('#math_product_result').text(d.product + " [SUCCESS]");
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});
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});
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});
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</script>
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</body>
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</html>

‎index.js‎

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const express = require('express')
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const app = express()
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app.get('/', function (req, res) {
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res.send('Hello World!')
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})
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/*
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* leftover soup + peta - KILDS LUNCH
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* charsia has leftovers for lunch + a peta
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* i can have soup + peta or pinto beans + chips and salsa
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*/
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const express = require('express');
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const bodyParser = require('body-parser');
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const Proxies = require('@mesos-playground/seneca-proxies');
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const pkg = require('./package.json');
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const srv = {
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math: Proxies.MathProxy(pkg.config.endpoints.MathService),
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uuid: Proxies.UuidProxy(pkg.config.endpoints.UuidService)
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}
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const app = express();
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app.use(bodyParser());
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app.get('/', function (req, res) { res.sendFile(__dirname+'/index.html'); });
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app.get('/api/health/_ping', function(req, res) { res.send('pong'); });
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app.get('/api/health/:srv', function(req, res) {
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if(srv.hasOwnProperty(req.params.srv)) {
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srv[req.params.srv].check().then(()=>{
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var ret = {}
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ret[req.params.srv] = "OK";
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res.json(ret);
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}).catch(err=>{
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res.status(503).json({ "message": err.message });
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});
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} else {
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res.status(404).json({ "message": "Unknown Service." });
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}
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});
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app.get('/api/uuid', function (req, res) {
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srv.uuid.generate().then(id=>{
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res.json({ "uuid": id });
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}).catch(err=>{
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res.status(503).json({ "message": err.message });
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});
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});
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app.post('/api/math/sum', function(req, res) {
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console.log(req.body);
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var a = Number(req.body.a);
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var b = Number(req.body.b);
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srv.math.sum(a, b).then(sum=>{
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res.json({ "sum": sum });
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}).catch(err=>{
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if(err.details)
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res.status(400).json({ "message": err.details.message });
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else
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res.status(503).json({ "message": "Service not available." });
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});
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});
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app.post('/api/math/product', function(req, res) {
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console.log(req.body);
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var a = Number(req.body.a) || req.body.a;
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var b = Number(req.body.b) || req.body.b;
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srv.math.product(a, b).then(product=>{
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res.json({ "product": product });
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}).catch(err=>{
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if(err.details)
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res.status(400).json({ "message": err.details.message });
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else
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res.status(503).json({ "message": "Service not available." });
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});
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});
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app.listen(3000, function () {
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console.log('Example app listening on port 3000!')
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})
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console.log('Example app listening on port 3000!')
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});

‎package.json‎

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{
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"scripts": {
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"start": "node index.js"
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},
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"dependencies": {
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"express": "^4.15.4"
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},
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"devDependencies": {
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"grunt": "^1.0.1",
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"grunt-contrib-compress": "^1.4.3",
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"grunt-copy": "^0.1.0",
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"grunt-package-modules": "^1.0.0"
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"config": {
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"endpoints": {
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"MathService": {
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"host": "192.168.65.111",
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"port": 29144
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},
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"UuidService": {
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"host": "192.168.65.111",
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"port": 30965
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}
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}
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},
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"scripts": {
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"start": "node index.js"
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},
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"dependencies": {
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"@mesos-playground/seneca-proxies": "^1.2.0",
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"body-parser": "^1.18.1",
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"express": "^4.15.4"
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},
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"devDependencies": {
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"grunt": "^1.0.1",
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"grunt-contrib-compress": "^1.4.3",
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"grunt-copy": "^0.1.0",
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"grunt-package-modules": "^1.0.0"
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}
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}

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