generic backend example

app.js

var express = require('express');
var bodyParser = require('body-parser');
var _ = require('lodash');
var app = express();

app.use(bodyParser.json());

var timeserie = [
  {"target": "upper_25", "datapoints": [[3.0, 1450754160], [2.0, 1450754220], [1.0, 1450754280], [0.0, 1450754340], [1.0, 1450754400], [1.0, 1450754460], [1.0, 1450754520], [1.0, 1450754580], [1.0, 1450754640], [1.0, 1450754700], [2.0, 1450754760], [1.0, 1450754820], [165.0, 1450754880], [5.0, 1450754940], [1.0, 1450755000], [1.0, 1450755060], [5.0, 1450755120], [2.0, 1450755180], [2.0, 1450755240], [1.0, 1450755300], [1.0, 1450755360], [7.0, 1450755420], [4.0, 1450755480], [1.0, 1450755540], [7.0, 1450755600], [7.0, 1450755660], [1.0, 1450755720], [2.0, 1450755780], [1.0, 1450755840], [1.0, 1450755900], [2.0, 1450755960], [1.0, 1450756020], [1.0, 1450756080], [2.0, 1450756140], [1.0, 1450756200], [7.0, 1450756260], [2.0, 1450756320], [2.0, 1450756380], [1.0, 1450756440], [8.0, 1450756500], [7.0, 1450756560], [1.0, 1450756620], [2.0, 1450756680], [2.0, 1450756740], [2.0, 1450756800], [2.0, 1450756860], [18.0, 1450756920], [1.0, 1450756980], [1.0, 1450757040], [1.0, 1450757100], [1.0, 1450757160], [6.0, 1450757220], [2.0, 1450757280], [1.0, 1450757340], [2.0, 1450757400], [2.0, 1450757460], [1.0, 1450757520], [1.0, 1450757580], [1.0, 1450757640], [1.0, 1450757700], [1.0, 1450757760], [1.0, 1450757820], [15.0, 1450757880], [5.0, 1450757940], [2.0, 1450758000], [1.0, 1450758060], [1.0, 1450758120], [1.0, 1450758180], [1.0, 1450758240], [1.0, 1450758300], [1.0, 1450758360], [1.0, 1450758420], [1.0, 1450758480], [1.0, 1450758540], [1.0, 1450758600], [2.0, 1450758660], [1.0, 1450758720], [2.0, 1450758780], [1.0, 1450758840], [1.0, 1450758900], [1.0, 1450758960], [1.0, 1450759020], [1.0, 1450759080], [1.0, 1450759140], [8.0, 1450759200], [1.0, 1450759260], [2.0, 1450759320], [1.0, 1450759380], [1.0, 1450759440], [1.0, 1450759500], [2.0, 1450759560], [2.0, 1450759620], [1.0, 1450759680], [1.0, 1450759740], [2.0, 1450759800], [1.0, 1450759860], [1.0, 1450759920], [1.0, 1450759980], [1.0, 1450760040], [2.0, 1450760100], [9.0, 1450760160], [1.0, 1450760220], [2.0, 1450760280], [1.0, 1450760340], [0.0, 1450760400], [1.0, 1450760460], [1.0, 1450760520], [1.0, 1450760580], [2.0, 1450760640], [1.0, 1450760700], [2.0, 1450760760], [1.0, 1450760820], [3.0, 1450760880], [3.0, 1450760940], [1.0, 1450761000], [1.0, 1450761060], [1.0, 1450761120], [1.0, 1450761180], [1.0, 1450761240], [1.0, 1450761300], [1.0, 1450761360], [1.0, 1450761420], [1.0, 1450761480], [1.0, 1450761540], [2.0, 1450761600], [1.0, 1450761660], [1.0, 1450761720], [1.0, 1450761780], [1.0, 1450761840], [1.0, 1450761900], [1.0, 1450761960], [2.0, 1450762020], [2.0, 1450762080], [1.0, 1450762140], [2.0, 1450762200], [1.0, 1450762260], [1.0, 1450762320], [8.0, 1450762380], [1.0, 1450762440], [2.0, 1450762500], [1.0, 1450762560], [2.0, 1450762620], [1.0, 1450762680], [1.0, 1450762740], [1.0, 1450762800], [1.0, 1450762860], [1.0, 1450762920], [1.0, 1450762980], [1.0, 1450763040], [1.0, 1450763100], [1.0, 1450763160], [1.0, 1450763220], [1.0, 1450763280], [2.0, 1450763340], [1.0, 1450763400], [1.0, 1450763460], [1.0, 1450763520], [1.0, 1450763580], [2.0, 1450763640], [1.0, 1450763700], [1.0, 1450763760], [2.0, 1450763820], [1.0, 1450763880], [1.0, 1450763940], [1.0, 1450764000], [1.0, 1450764060], [2.0, 1450764120], [2.0, 1450764180], [5.0, 1450764240], [2.0, 1450764300], [1.0, 1450764360], [2.0, 1450764420], [1.0, 1450764480], [2.0, 1450764540], [1.0, 1450764600], [2.0, 1450764660], [1.0, 1450764720], [1.0, 1450764780], [1.0, 1450764840], [2.0, 1450764900], [1.0, 1450764960], [1.0, 1450765020], [1.0, 1450765080], [1.0, 1450765140], [1.0, 1450765200], [1.0, 1450765260], [2.0, 1450765320], [1.0, 1450765380], [1.0, 1450765440], [1.0, 1450765500], [1.0, 1450765560], [1.0, 1450765620], [1.0, 1450765680], [1.0, 1450765740], [1.0, 1450765800], [1.0, 1450765860], [1.0, 1450765920], [1.0, 1450765980], [1.0, 1450766040], [1.0, 1450766100], [3.0, 1450766160], [1.0, 1450766220], [1.0, 1450766280], [18.0, 1450766340], [1.0, 1450766400]]},
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  {"target": "upper_95", "datapoints": [[861.0, 1450754160], [767.0, 1450754220], [809.0, 1450754280], [907.0, 1450754340], [624.0, 1450754400], [2445.0, 1450754460], [3134.0, 1450754520], [611.0, 1450754580], [505.0, 1450754640], [646.0, 1450754700], [1441.0, 1450754760], [1246.0, 1450754820], [666.0, 1450754880], [813.0, 1450754940], [1654.0, 1450755000], [785.0, 1450755060], [309.0, 1450755120], [1570.0, 1450755180], [1042.0, 1450755240], [1574.0, 1450755300], [1001.0, 1450755360], [729.0, 1450755420], [2447.0, 1450755480], [1596.0, 1450755540], [883.0, 1450755600], [731.0, 1450755660], [1173.0, 1450755720], [1255.0, 1450755780], [716.0, 1450755840], [635.0, 1450755900], [931.0, 1450755960], [558.0, 1450756020], [1614.0, 1450756080], [1881.0, 1450756140], [435.0, 1450756200], [1798.0, 1450756260], [1493.0, 1450756320], [2108.0, 1450756380], [297.0, 1450756440], [702.0, 1450756500], [1216.0, 1450756560], [1666.0, 1450756620], [536.0, 1450756680], [893.0, 1450756740], [916.0, 1450756800], [473.0, 1450756860], [1555.0, 1450756920], [331.0, 1450756980], [1644.0, 1450757040], [556.0, 1450757100], [358.0, 1450757160], [821.0, 1450757220], [1325.0, 1450757280], [1052.0, 1450757340], [974.0, 1450757400], [816.0, 1450757460], [1062.0, 1450757520], [1438.0, 1450757580], [3759.0, 1450757640], [1479.0, 1450757700], [2117.0, 1450757760], [2878.0, 1450757820], [3627.0, 1450757880], [2101.0, 1450757940], [931.0, 1450758000], [1593.0, 1450758060], [487.0, 1450758120], [2282.0, 1450758180], [983.0, 1450758240], [4287.0, 1450758300], [1422.0, 1450758360], [1604.0, 1450758420], [1099.0, 1450758480], [1128.0, 1450758540], [1547.0, 1450758600], [1932.0, 1450758660], [595.0, 1450758720], [708.0, 1450758780], [1481.0, 1450758840], [1107.0, 1450758900], [875.0, 1450758960], [1128.0, 1450759020], [618.0, 1450759080], [1809.0, 1450759140], [2170.0, 1450759200], [831.0, 1450759260], [1898.0, 1450759320], [1556.0, 1450759380], [1388.0, 1450759440], [1864.0, 1450759500], [1220.0, 1450759560], [1351.0, 1450759620], [1612.0, 1450759680], [1089.0, 1450759740], [1364.0, 1450759800], [1397.0, 1450759860], [1194.0, 1450759920], [892.0, 1450759980], [1275.0, 1450760040], [1110.0, 1450760100], [2732.0, 1450760160], [1751.0, 1450760220], [2395.0, 1450760280], [1750.0, 1450760340], [1821.0, 1450760400], [1353.0, 1450760460], [1088.0, 1450760520], [938.0, 1450760580], [1699.0, 1450760640], [1497.0, 1450760700], [1880.0, 1450760760], [599.0, 1450760820], [2319.0, 1450760880], [1114.0, 1450760940], [840.0, 1450761000], [2462.0, 1450761060], [1316.0, 1450761120], [1018.0, 1450761180], [1195.0, 1450761240], [1300.0, 1450761300], [1389.0, 1450761360], [908.0, 1450761420], [2060.0, 1450761480], [1535.0, 1450761540], [1535.0, 1450761600], [2505.0, 1450761660], [920.0, 1450761720], [996.0, 1450761780], [1378.0, 1450761840], [1171.0, 1450761900], [1105.0, 1450761960], [848.0, 1450762020], [798.0, 1450762080], [1338.0, 1450762140], [1307.0, 1450762200], [1317.0, 1450762260], [940.0, 1450762320], [1418.0, 1450762380], [1699.0, 1450762440], [859.0, 1450762500], [1038.0, 1450762560], [1760.0, 1450762620], [676.0, 1450762680], [1501.0, 1450762740], [1521.0, 1450762800], [714.0, 1450762860], [964.0, 1450762920], [1286.0, 1450762980], [609.0, 1450763040], [1363.0, 1450763100], [1610.0, 1450763160], [1097.0, 1450763220], [1571.0, 1450763280], [949.0, 1450763340], [1239.0, 1450763400], [998.0, 1450763460], [808.0, 1450763520], [1158.0, 1450763580], [1683.0, 1450763640], [1195.0, 1450763700], [733.0, 1450763760], [1498.0, 1450763820], [1015.0, 1450763880], [956.0, 1450763940], [2610.0, 1450764000], [1335.0, 1450764060], [2282.0, 1450764120], [1840.0, 1450764180], [1540.0, 1450764240], [1371.0, 1450764300], [1553.0, 1450764360], [1722.0, 1450764420], [1031.0, 1450764480], [1850.0, 1450764540], [1590.0, 1450764600], [1264.0, 1450764660], [1828.0, 1450764720], [2048.0, 1450764780], [1460.0, 1450764840], [1498.0, 1450764900], [1671.0, 1450764960], [1516.0, 1450765020], [2505.0, 1450765080], [1489.0, 1450765140], [1141.0, 1450765200], [1756.0, 1450765260], [1161.0, 1450765320], [1687.0, 1450765380], [1227.0, 1450765440], [1979.0, 1450765500], [1457.0, 1450765560], [1400.0, 1450765620], [1267.0, 1450765680], [1560.0, 1450765740], [1843.0, 1450765800], [1565.0, 1450765860], [1266.0, 1450765920], [1063.0, 1450765980], [1464.0, 1450766040], [1333.0, 1450766100], [1004.0, 1450766160], [1358.0, 1450766220], [1234.0, 1450766280], [1744.0, 1450766340], [1640.0, 1450766400]]}
];



for (var i = 0; i < timeserie.length; i++) {
  var series = timeserie[i];
  var now = Date.now();
  var decreaser = 0;
  for (var y = 0; y < series.datapoints.length; y++) {
    series.datapoints[y][1] = (now - decreaser);
    decreaser += 50000;
  }
}

var annotation = {
  name : "annotation name",
  enabled: true,
  datasource: "generic datasource",
  showLine: true,
}

var annotations = [
  { annotation: annotation, "title": "Donlad trump is kinda funny", "time": 1450754160000, text: "teeext", tags: "taaags" },
  { annotation: annotation, "title": "Wow he really won", "time": 1450754160000, text: "teeext", tags: "taaags" },
  { annotation: annotation, "title": "When is the next ", "time": 1450754160000, text: "teeext", tags: "taaags" }
];

var now = Date.now();
var decreaser = 0;

for (var i = 0;i < annotations.length; i++) {
  var anon = annotations[i];

  anon.time = (now - decreaser);
  decreaser += 1000000
}

app.all('/', function(req, res) {
  res.send('I have a quest for you!');
  res.end();
});

app.all('/search', function(req, res){
  var result = [];
  _.each(timeserie, function(ts) {
    result.push(ts.target);
  });

  res.send(JSON.stringify(result));
  res.end();
});

app.all('/annotations', function(req, res) {
  console.log(req.url);
  console.log(req.body);

  res.send(JSON.stringify(annotations));
  res.end();
})

app.all('/query', function(req, res){
  console.log(req.url);
  console.log(req.body);

  var tsResult = [];

  _.each(req.body.targets, function(target) {
    var k = _.filter(timeserie, function(t) {
      return t.target === target.target;
    });

    _.each(k, function(kk) {
      tsResult.push(kk)
    });
  });

  res.send(JSON.stringify(tsResult));
  res.end();
});

app.listen(3333);

console.log("Server is listening");