index.js

"use strict";

var fs = require("fs"),
    path = require("path"),
    http = require("http");
    
// var oas3Tools = require('oas3-tools');
var app = require("connect")();
var redirect = require('connect-redirection');
var swaggerTools = require("swagger-tools");
var jsyaml = require("js-yaml");
var serverPort = process.env.PORT || 8080;

let serveStatic = require("serve-static");

let { setupDataLayer } = require("./service/DataLayer");

// swaggerRouter configuration
var options = {
    swaggerUi: path.join(__dirname, "/swagger.json"),
    controllers: path.join(__dirname, "./controllers"),
    useStubs: process.env.NODE_ENV === "development", // Conditionally turn on stubs (mock mode)
};

// The Swagger document (require it, build it programmatically, fetch it from a URL, ...)
var spec = fs.readFileSync(path.join(__dirname, "api/swagger.yaml"), "utf8");
var swaggerDoc = jsyaml.safeLoad(spec);


// Initialize the Swagger middleware
swaggerTools.initializeMiddleware(swaggerDoc, function(middleware) {
    // Interpret Swagger resources and attach metadata to request - must be first in swagger-tools middleware chain
    app.use(middleware.swaggerMetadata());

    // Validate Swagger requests
    app.use(middleware.swaggerValidator());

    // Route validated requests to appropriate controller
    app.use(middleware.swaggerRouter(options));

    // Serve the Swagger documents and Swagger UI
    app.use(middleware.swaggerUi());

    // Serve the website
    app.use(serveStatic(__dirname + "/public"));

    // Backend redirections
    app.use(redirect())
        .use(function(req, res) {
            if (req.url == '/backend/main.html') {
                res.redirect('/backend')
            } else if (req.url == '/docs') {
                res.end('/backend/swaggerui');
            }
        });

    // Start the server
    setupDataLayer()
        .then(() => {
            http.createServer(app).listen(serverPort, function() {
                console.log(
                    "Your server is listening on port %d (http://localhost:%d)",
                    serverPort,
                    serverPort
                );
                console.log(
                    "Swagger-ui is available on http://localhost:%d/docs",
                    serverPort
                );
            });
        })
        .catch(function(error) {
            console.log("Starting DataLayer and Server failed: ", error);
        });
});