Integrating Node.ACS with ExpressJS... not working

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Integrating Node.ACS with ExpressJS... not working

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Looking for a simple example of integrated node.acs with expressjs?

I have a bunch of stuff already written in ExpressJS and I would like to try and move it all over

So this is my original code... just a snippet that causes crashes... tried to change app to api but still failure

/**
 * Module dependencies.
 */
 
var express = require('express');
var app = express();
var querystring = require('querystring');
 
 
// config
app.set('view engine', 'ejs');
app.set('views', __dirname + '/views');
 
// middleware
app.use(express.bodyParser());
app.use(express.cookieParser('shhhh, very secret'));
app.use(express.session());

and then I make calls like this

app.get('/',
function(req, res) {
    res.redirect('login');
});

3 Answers

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full source code here

https://gist.github.com/3745900

— commented 8 months ago by Aaron Saunders

Answer 1

It looks like node.acs is configured to use Express with EJS. I created a view and added the following template.

<html>
    <head>
        <title><%= message %></title>
    </head>
 
    <body>
        <p>
        <%= message %>
        </p>
    </body>
</html>

Then updated my my node app to use the render vs. the text in the request.

res.render('index', {
        message : 'Hello, world!!!!!'
    });

Answer 2

The "api" in node.acs project is not the "app" object in expressjs, when you define a api.xxx function in the project, means you define a function that handles "/xxx" path, the "req" and "res" passed in are the expressjs request and response objects. If you are trying to do redirect, the path need to be start with "/", i just tried without "/", it doesn't work. Also, whatever the redirect path is, it has to be defined in the project as well to handle the redirect request.

Answer 3

Node.ACS does support filters for middlewares. Please try the following code.

/**
 * service definition file
 */
logger.setLevel('DEBUG');
 
var response = '';
 
api.index = function(req, res) {
    res.text(response + 'Hello, world!');
 
    logger.info('This is an info message. ' + new Date());
    logger.error('This is an error message. ' + new Date());
    logger.warn('This is a warning message. ' + new Date());
};
 
filter.f1 = function(req, res, next) {
    response += 'filter1 done\n';
    next();
};
 
filter.f2 = function(req, res, next) {
    response += 'filter2 done\n';
    next();
};

Just add your filters to the 'filter' object.

Node.ACS doesn't expect developers to define routing (app.get('/',...) in app code. Instead, app code is running in a built-in web application which acts as a container. Routing stuff has been done by the container. So developers just need to add methods to the 'api' object and the container is responsible for routing requests to the methods.