I am trying to learn NodeJS along with AngularJS. On the frontend, I can simply put debugger statement when I want to put a breakpoint and debug from the browser console. How can I put breakpoints from the server side? In other words, I am looking for a function like pdb in nodejs version.
More specifically, I am trying to learn how to upload files using angularjs on the front and express on the back. When I submit a form with a file attached, a POST request is sent to the server with a set of parameters. Then, the server must submit this form to Amazon S3 with the appropriate credentials. I want to set a breakpoint before submitting the form to Amazon S3 to check the params.
Any help will be appreciated. Thank you!
https://github.com/node-inspector/node-inspector
try this node-inspector, allow you to debug the nodejs just like debugging frontend codes in the chrome devtool
Give it a try for visionmedia debug module.
You may require to configure your node app on your server app.js/main.js/web.js which actually bootstrap your node server app.
var debug = require('debug')('YOUR-APP-NAME');
Related
So I am currently in the process of learning the new Javascript Cloud SDK. Of course there is also a package for attachments and document info records but I am still facing some problems.
So mainly I just want to get an attachment which is attached to a document info record and safe it to my local file system. I am working with the JS Cloud SDK so I am working with a Node application.
When working with the API directly (testing via Postman) I can get the media_src of the attachment simply by adding '$value' to the request path. When I try to access this URL outside of Postman with a simple Node https.get request I get a SAML 2.0 Error (SAML2 Service not accessible). I guess that is because I cannot access those URLs via browser and therefore I should use the SDK for that.
So the final problem I am facing is that I cannot find anything about getting the file itself in the JSDoc of the SDK.
Same goes also for creating an attachment. Should I use the 'builder()' method for that and pass a JSON object or how does a POST or PUT request work with that SDK? I cannot find any blogs etc. because they are only doing simple 'Hello World' programms or GET some data.
thanks for reaching out to us!
Currently, we do not support OData media streams in the JS SDK's VDM yet.
If this functionality is critical for you, you can consider using the Java version of the SDK. Alternatively, you can open an issue here.
Regarding the SAML error I cannot comment, since I don't how your Postman is configured or how your system is setup.
I have made a simple password protected webpage that provides the link to another webpage when we enter the correct password but we can easily have the webadrress of other page by browsers "View Page Source" feature.So how we can overcome this?
The problem is that you are keeping your secret data on the client and client can easily reach it. So, the only posible way for you is to keep them on the server. But, as far as I understand you need help with server part. So here is small instruction with links to the documentation.
You will need:
Some backend that will take data from your users and returns some responce. I would suggest you to have a look into Node.Js as a platform with Express as a server. Benefit from this setup is that Node.Js uses JavaScript so you have not to learn additional language, and Express is a very simple server to use. Of course, if you want to learn some other languages - you can take C# with ASP.NET MVC framework, PHP or any other nice language.
Some page with form for user's credentials that will post data to your backend. Basic form behavior can be found here
And some code on server that will validate credentials from form and return new page with or without your secret.
That's it. May be it sound a bit scary but there are lots of guides and information your can google.
Hope this helps. Happy coding!
Btw, if you are lloking for the some ready code, I have Node.JS client/server example with TypeScript (JavaScript with type validation) here. All you need is git, hope you already have it, and Node.Js
Then just execute this commands on your console (bash, cmd, etc)
git clone https://github.com/Drag13/typescript-browserify-template
This will download code from remote server to your local machine
npm install
Installs project dependencies - like express server
npm run server
Starts the server
cd..
npm run client
Starts the client
Maybe you will find this helpfull.
sorry to bother you, but I've been looking for answers and I couldn't find them anywhere... Well i'm a fresh dude in the field of javascript and node.js and here's my problem:
I've created an application based on the tutorial of socket.io - Here's the link to the completed project of their chat example. everything is working as it should, but I would really need to trigger somekind of a command while node server is running... command should be triggered via php script.
The command should trigger an emit event - so every client in our case would see a new message sent via php.
I saw couple of suggestions to do it from another server with php/using cURL. The problem is that I don't know how to fetch POST data sent from php to node.js server.
Any solution to command node with php is more than welcome and again i'm sorry to bother you :)
You can use a bridge to exchange data between NodeJS and PHP. You will need to implement a PHP server that exposes remote procedures and a NodeJS client that calls those remote procedures. You can send any data to the NodeJS application from PHP using these remote procedures.
Here are a few links to get you started:
http://bergie.iki.fi/blog/dnode-make_php_and_node-js_talk_to_each_other/
https://github.com/bergie/dnode-php
I'm locally developing an Angularjs app. I'm using the same node web server as in the Angularjs tutorial. The link to the code for the web-server on Github.
The problem is that I can't seem to get html5mode to work on the node server. What I understand so far is that i have to add a base href to my app and rewrite the server code. I tried rewriting the node web server code, but I failed and it didn't work. Could someone please help me in what i should exactly change? Or does someone maybe already has a version of the server rewritten?
The link to my app looks like this: http://localhost:8000/app/index.html
Also refreshing the page on a html5 link doesn't work. Like this: http://localhost:8000/schedule.
Thanks
You have to rewrite incoming requests that aren't to your REST endpoints respond with the same response as the request to /app/index.html.
I'am searching for days now but could not get an answer.
I would like to do the following:
User connects to editor.html (Apache2 with basic http auth)
User want to open a file (lets say /home/user1/myfile.txt) on the server with his user/pass (same as in passwd)
Node.js Script gets startet with user rights from above and user can edit file
The Node Script will handle the connection via websockets and read/writes files.
I think the biggest problem is that its not possible to run a node script on the server from a web page... and I don´t want to involve any php/cgi scripts... only Apache and Node.js / JS.
Please also comment or answer if you know that it is really not possible...
Thanks!
Kodak
Edit: The workflow should be the following:
User access webpage -> enters his credential (same as in passwd) -> node.js script gets started with the user rights of the logged in user -> files getting read or written with user rights
Biggest Problem: who starts the Node.js script? Apache? How?
I hate to be this person, but...
That is not the way node is designed, it is designed to use the event loop, I would recommend having node serve the static files, maybe using apache as a proxy, then when someone requests a certain page, doing what ever needs to be done, if you really must spawn a child process, use child_process.spawn, as for the rights of the user, I recommend just passing in a code, like 1=admin, 2=user, 3=guest, and the child process can do what is needs.
Use Socket.io - Official Socket.IO Website
You can also use Express with socket IO to create a separate app server. - Express JS Website
You may want to consider security implications of allowing a user to connect directly using their server side account. There are also many applications available that already do this that you might consider implementing instead of writing your own, with all the properly embedded security that will be required.
Let your users GET static auth.html page (via apache) without any authentication.
Let form submit action is some auth.js (Node.js script). This auth.js check if user's authentication is success. If so it starts node.js server, setups socket.io on it and redirects user to some editor.html.
In this case as you can notice that there is an authentication based on node.js scripting. If you want basic apache2 one I can recommend you the next scenario:
There is auth.html and editor.html pages on the server. Last one placed in /private folder and direct access to this folder is denied by .htaccess. So when the user pass apache2 authentication in auth.html he GET this auth.html which is empty document with onload event handler that send AJAX to auth.js (Node.js script). Node.js get private/editor.html and send it to user like /editor.html.
In this case user never has an access to editor without passing authentication. And after authentication node.js server is started and socket.io is setup and everything fine.
I found a solution:
It is possible to write a custom authentication program for apache with mod-auth-external:
https://code.google.com/p/mod-auth-external/
With basic authentication enabled the webserver would pass the credentials to a script/program and this can then run the node app.