I have a HTA tool that connects to oracle database. It's created using HTML,Javascript and oracle as backend.
Javascript connects to oracle database using OLEDB drive. It pulls data and create dynamic rows.
Tool is working but now am planning to convert it as Web Application.
Being a DBA , am not that much familiar with Java and i thought i will explore options in Python.
I have recently done a automation using Python and Selenium. So yes , i know bit of Python. But i have no idea about website using python.
I also don't want to change lot of code. I want javascript to do all the dynamic front-end stuffs.
All i need is interface that can connect to oracle database and pull the information and pass it to javascript function.
Can someone please guide to how to start with.
Thanks.
I don't know Python but if you don't want to change a lot of code, you may consider PHP. It's made to generate HTML code dynamicaly.
It is dangerous to connect to your DB directly by using javascript. Every user can read the JS code in the page and event modify it(sending every value they want).
PHP is executed on the server, it mean that you can check and validate the received value before risking to corupt your DB.
That's why a PHP page between the JS and the DB is better. Python should be secure too but I think it's easier to use PHP because it's open source and well documented.
I wish you a good continuation!
Related
Every tutorial and guide show I need another framework such as Express, Angular, Sails, or Koa to connect with MongoDB.
Do I need to learn how to write Middleware, Adapters, and more to get MongoDB to work with EmberJS?
I'm pretty new, and I just finished a simple to-do and web scraping apps. I want to learn how to store it like how I can just write python script, process data, connect to postgresql, save data to the database server.
Can you provide a link to the right source, a step by step process, or tools to research that can help anyone in my position now and in the future learn how to make EmberJS and MongoDB work together without going in circles?
I use nodejs, emberjs, mongodb hosted on heroku.
My situation: I'm working on a web monitoring dashboard that assembles informations from different applications and sources and generate graphs, info graphics and reports.
The applications I'm trying to integrate are CACTI, Nagios, and other local private monitoring tools. I had no problem to integrate these applications, except for Nagios (I don't have much experience with it).
What I want to know is if there is a way to use Nagios as a Web Service, or something similar, so I can expose some of the informations and use it to generate my own reports on my dashboard application.
Is it possible to do that without any epic effort?
thanks for reading.
Nagios 4.x starting with version 4.4 now includes CGIs for JSON output. Installing the newest version of Nagios might be the easiest way to go.
See the announcement here.
Review the slides from Nagios World Conference 2013 here.
The Check_MK Multisite GUI (Web base GUI using MK Livestatus) offers a web service mode, where you can send queries/commands as URL parameters and get the response as JSON in the body.
The trick is: Create a view in the GUI, which fits your needs. Then extract the URL of that view and add the parameter output_format=json. Now you should have the output in a parsable format.
For example, this URL should give you a JSON list of all services:
check_mk/view.py?view_name=allservices&output_format=json
You can try:
1) MK Livestatus http://mathias-kettner.de/checkmk_livestatus.html
it's not web service but it can give current data without any complicated action. All you need redirect this data.
2)status-json plugin http://exchange.nagios.org/directory/Addons/APIs/JSON/status-2Djson/details which return data in JSON format.
3)NagiosWS plugin but I wasn't able to get to work it yet. I think it can be done for Nagios 2.x
4)GroundWork Foundation plugin. I think I will try use it now.
I was able to get to work 1 and 2 solution now.
Otherwise you can use Icinga which can give you some JSON or XML output. Icinga is fork of Nagios and can be installed with saving all your nagios data and plugins. At least it written on Icinga's site =) They have some other solution like PHP lib.
Sorry, I cannot post only 2 link while I'm newbie on this site.
Best regards.
Worked for me - MK Livestatus http://mathias-kettner.de/checkmk_livestatus.html it's not web service but it can give current data without any complicated action. All you need redirect this data.
I am looking on advice on how best to approach a new project I need to develop. From the outset I must add, I have 0 experience with Web development on any level.
What I need to do is provide a web interface through the browser which will communicate with a server back end. The data retrieved will be sourced from either a DB or from another source - external device which the server itself will communicate with via IP. The data retrieved from the external device will always be a string format of n length (non unicode) and the DB data will mostly be strings and numbers with the odd blob thrown in (storing a picture). The communication will always go from the Client (web browser) to the Server. I don't believe that the server would need to instigate the comms.
I have Delphi XE, so started looking at using a REST server for communication and I think that seems to be OK. However, from what I can see, I need to create HTML web pages to "render" the data on the web browser. Is that true? Can I use the IW components with a REST server? If so, I'm not sure how to get the data to/from the browser UI. Am I better of investigating Ruby on Rails perhaps? From what I read on a different thread in here, it's based on MVC and some other areas which I feel, design wise, would fit how I would create the application (I was planning on creating the app based on the MVP or similar design pattern).
I think REST makes the most sense, so if the IW components can't be used, are there any 3rd party products I can use which would let me design "pretty" UI html. Given I don't know java script, would that be a stumbling block with REST too.
Thanks and hopefully I have provided enough information.
Thanks
Jason
Will a human being be responsible for typing the data retrieved from your external device into a web page?
If so, and you have no web development experience, Intraweb is definitely the way to go for Delphi programmers wanting to build a web application without learning new skills. For additional components to create a prettier UI I suggest using TMS Software's Intraweb Component Pack Pro.
If you don't need a human being to manually type in this data then you don't need Intraweb at all. Instead you would write a client application which presumably interrogated your external device for the data and then transmitted it to the REST server. Look at the documentation you've used to build your REST server and it should have a section on how to build a REST client.
You can build an ISAPI module with delphi that does the job, or include a HTTP server right into you executable with Indy, ICS or Synapse.
ISAPI will give you the freedom to choose Apache or IIS and give you all their power this way. Embeded HTTP server will give you a nice small application in which you control all ascpects of how it works.
Yes go with REST as it is simple and clean. All you need is to think and design the API (functions that your server will support). You can bind the APIs to the URL schema thus using the REST principle. I would do it simply like this.
A client makes a request. You show some form of GUI (load or render a HTML page with possible javascript)
User makes an action, you call appropriate API (or the user does it directly).
Show the user some result
Just guide the user process through a series of API calls until the result is made
You can use plain HTML and then add javascript if needed (jquery) or you can use ExtJS from Sencha which makes building a nice GUI a lot easier and is very well structured.
I would not use any "WYSIWYG" web tools. Plain old HTML written by your favorite editor is still the king in my opinion.
I am looking for a web app framework which can automatically generate an HTML5 offline storage based app, so while the users become disconnected they still can view the data which normally is stored on a server
Also currently I am using Django and it would be great if there was a framework which could pull data from Django and present that as an offline app.
From the related questions suggested by stackoverflow, while writing this question, I found one interesting link mentioning that GWT has such functionality, I would like to know more about that if possible and if it can generate an HTML5 offline app
Thanks in Advance
Rather than server-side frameworks, you should be taking a look at JavaScript frameworks.
Dojo Storage will transparently select between providers such as Google Gears, Adobe AIR or plain old HTML 5 local storage. Dojo 1.5 - dojox.storage: http://dojotoolkit.org/api/1.5/dojox/storage
There's also jQuery local storage: http://plugins.jquery.com/project/saveit
... or jStorage, which can act as a storage plugin for jQuery, Prototype or MooTools: http://www.jstorage.info/
With any of these, you should be able to use a quick little AJAX call to pull (JSON perhaps) data from your server and use one of these tools to help minimise your storage code.
You're talking about a standalone app, not a django app.
This can be done with javascript (jQuery, Sproutcore, JavascriptMVC, Pyjamas ...) or Adobe AIR, or...
Pulling data from Django is just a matter of setting up a syncing method, most probably using JSON, to fill up the browser local storage. So this is not django-specific at all.
If you want a standalone django app, this can be done if you bundle in a python desktop app django with a built-in server, that's another question
You could suggest the users to create web apps or use google gears instead... I don't know if this will fill the question, but, i'm in the same way. However, I'm developing an governamental solution who will run only for some kind of people, so, I can have a few control about the user's environment... All you need to do is to use jquery to detect if user has a live connection, or offer to the users a 'preferences' page where you define the behavior of the page itself...
Some info about offline cache: http://diveintohtml5.ep.io/offline.html
PS.: In another post in stackoverflow, I 've found another question: html5 offline caching with php driven sites... The last Post said:
HTML5 offline caching does not work to make your pages interact; it works only to make a
particular page available offline. Basically, it works on a URL-by-URL basis. If you
absolutely need offline functionality, you will be forced to make it work in JS.
Also, make sure your manifest includes all resources used by all pages.
Hope this helps!
Hope it helps!!
both seems to be pretty cool
which is to be in used in what scenario ?
GWT: http://code.google.com/webtoolkit/
Faster AJAX than you'd write by hand
With Google Web Toolkit (GWT), you
write your AJAX front-end in the Java
programming language which GWT then
cross-compiles into optimized
JavaScript that automatically works
across all major browsers.
Django: http://www.djangoproject.com/
a high-level Python Web framework that
encourages rapid development and
clean, pragmatic design.
They have little or nothing to do with each other. Django provides some Javascript; Django can easily handle the server-side of any Ajax conversation.
Django doesn't help you write javascript. It helps you write the server-side of the application.
Django helps you write the HTML pagess (with templates). If the page includes, or relies on Javascript, Django doesn't care very much at all.
pyjamas is a Python port of the GWT, so all the javascript is generated using Python instead of Java.
If you're planning on working with Django it might simplify to make your entire shop code in Python.
It is quite possible to use both in the same project. I've been working on such a project for some time now. Have Django handle the server side and leave the client side to GWT. The only issue I have is that the RPC mechanism in GWT cannot be used because it works with Java servlets. I use JSON for communication instead.
With GWT you write client-side applications, that run inside some browser Javascript engine. You code in Java, and it gets compiled into Javascript.
Django, is different because you write server-side applications: applications will be executed in the server and their result is sent to the client browser. Ah! Django is Python.
Both have libraries to achieve most of the tasks web developer needs, like internationalization, sessions, etc. Django comes with a nice ORM (Object Relational Mapper) and GWT comes with a Tomcat based engine, for the server-side coding and development.
If you need to make a decision just choose the framework based in the language of your choice.
I use xml serialization for communication between django and gwt
http://www.eecho.info/Echo/ajax/requestbuilder-gwt-15/