server.js

var express = require("express");
var fs = require("fs");
var https = require("https");
var path = require("path");
var bodyParser = require("body-parser");

var Houndify = require("houndify");

//parse arguments
var argv = require("minimist")(process.argv.slice(2));

//config file
var configFile = argv.config || "config";
var config = require(path.join(__dirname, configFile));

//express app
var app = express();
var port = config.port || 8446;
var publicFolder = argv.public || "public";
app.use(express.static(path.join(__dirname, publicFolder)));

//authenticates requests
app.get(
  "/houndifyAuth",
  Houndify.HoundifyExpress.createAuthenticationHandler({
    clientId: config.clientId,
    clientKey: config.clientKey,
  })
);

//sends the request to Houndify backend with authentication headers
app.post(
  "/textSearchProxy",
  bodyParser.text({ limit: "1mb" }),
  Houndify.HoundifyExpress.createTextProxyHandler()
);

if (config.https) {
  //ssl credentials
  var privateKey = fs.readFileSync(config.sslKeyFile);
  var certificate = fs.readFileSync(config.sslCrtFile);
  var credentials = { key: privateKey, cert: certificate };

  //https server
  var httpsServer = https.createServer(credentials, app);
  httpsServer.listen(port, function () {
    console.log("HTTPS server running on port", port);
    console.log(
      "Open https://localhost:" + port,
      "in the browser to view the Web SDK demo"
    );
  });
} else {
  app.listen(port, function () {
    console.log("HTTP server running on port", port);
    console.log(
      "Open http://localhost:" + port,
      "in the browser to view the Web SDK demo"
    );
  });
}