First off, go easy on me. While I have been doing extremely basic coding since I was a child, it's only been over the last few months that I started getting into the real stuff like Java, Javascript, PHP/MySQL, etc. So please bear with me if I use wrong terminology or write something that sounds completely wrong. I'd love to get some insight from all you tireless helpers here.
Here is what I need:
I have a website at myserver.com.
I want to use the API at randomsite.com to automate a process.
If I manually go to the URL randomsite.com?do=this, my process will be triggered.
What I want to be able to do is write an app on myserver.com that will trigger randomsite.com?do=this. Obviously I can have a link on my page, but the user will see that they have been directed to randomsite.com.
I do not need to capture anything about the randomsite.com link having been triggered. I don't care who clicked it, etc. All I want is to simulate the effects of going to randomsite.com?do=this but without actually opening that site on the front end.
Thank you so much for your help!
Consider using AJAX for doing stuff behind the scenes...
https://api.jquery.com/jQuery.ajax/
EDIT: You would need to use JSONP for cross domain.
Related
I'm currently looking for a way in Rails/Javascript to show a live count of all users visiting a specific controller action. Think of it like a similar functionality to Twitch.tv channel viewers. I've seen some older instances of ways to accomplish this, but I'm new to rails and back end code in general, so I'm not exactly sure the best way to even think about this problem. Maybe there's a gem out there that would help me as well. If so, I'm definitely open to it.
Thanks in advance for taking the time to help me with this!
I strong suggest that you take a look at ActionCable feature. Its native, so you don`t need any extra gems and, with a little bit of code, you can get real time feautures up and running.
Docs
http://guides.rubyonrails.org/action_cable_overview.html
I want to write a PHP script which executes code on a foreign website just like using the JS-console on that webpage. I don't want the server to act like the client on that certain webpage.
To make it even more difficult, the JavaScript must be executed on a different frame (when executing the JavaScript manually I'd switch to the correct console by clicking on the specific Frame in the dropdown menu above the console (Chrome)).
If I try to do something nearly impossible here, please don't hesitate to tell me exactly that.
You should try to describe what your end goal is. You are probably going down the wrong path here. There is no way to add javascript to a page that you don't serve yourself.
If I understand what you mean (and more detail would really help here). You want to automate something that you can do manually on a browser yourself, by manually running javascript on a webpage (via the console). The only reason I can think you would want to do this is to trigger an Ajax request/API call or submit a form.
This is technically possible, but it would be better to look for an actual API that you can talk to directly; you could do this by inspecting the network tab of the developer tools, but if they don't have a public API you may have to do a fair amount to fake the request; and if anything changes on the server it could all stop working.
If they don't have an API that you can call, or if they have put measures in place. Then there is a good chance that you are trying to misuse a website; and they may well put further measures in place to stop you (this is why captchas exist).
If you can figure out the details of a request to send, then you could use CURL to make the request - this page may help: https://davidwalsh.name/curl-post
If you really still find that you need/want to actually run javascript on a remote page, then this is "browser automation", and while technically could be triggered from PHP - requires much more to make it possible. Selenium is primarily used to automate tests, but would allow you to do this: http://www.seleniumhq.org/ via JavascriptExecutor but I would recommend you do some futher searches for tutorials, as it's too large/broad to really cover here:
https://seleniumhq.github.io/selenium/docs/api/java/org/openqa/selenium/JavascriptExecutor.html
today a good friend of mine had an offline website and wanted to have it that way an alternative link is provided when the other doesn't work.
E.G. Say sometimes a server works and you go to it frequently and then it is down. He wants an alternative link for that link if that server is not available, instead be redirected to another. I assume that JavaScript is required.
I have no code to provide since I don't know how. Please leave random code of yours as a representation of your answer. Hopefully I asked the question correctly for you to understand. :)
I will edit this question if it is not understandable.
The only way for this to work is to create an API endpoint on his server with the website that could be down, which just returns success. This is usually called a healthcheck.
Then on the website which links the broken one, use a JQuery POST to see if the healthcheck returns success or failure, and then change the HTML Dom accordingly. (So if other people link to your website, they would have to do this)
You can't redirect from the website that would be down from your point, because.... well it would be down....
I get some data from a page abc.html using Ajax and I store it in a table.
Once the data get stored in the table(i.e. commit takes place), I want that data to be updated in the page xyz.html in runtime so that the users can see the updates without having to refresh the page.
I have got the data and updated the data in the table.
But I don't know what to do once the data gets stored in the table.
I believe ajax is required to update the webpage xyz.html.
It would be of great help if someone can point to a resource on what approach to follow to implement it.
--Update--
I am a newbie but I am not asking anyone to write the code for me. Thanks.
You are going to have to look into something like Socket.IO for real-time updating.
http://socket.io/
Basically, socket.io is a javascript library built on top of Node.JS that constantly trolls a servers looking for new activity. This is sort of ajax, but an ajax request is normally prompted by a user (by a button click or scrolling to the bottom of the page, for example).
I'm not gonna write the code for you. If you are new, it's not going to be an easy thing to accomplish. This may seem like a simple feature, but it's actually quite complex.
If you start writing code, and get stuck, come back and ask a question, but no one is going to write this feature for you for free buddy, sorry.
Here is a tutorial on how to write a real-time updating chat-application with Socket.IO. Take some time and get to know how Socket.IO works and you should be able to figure out how to make it work for your needs.
I want to create a notification icon with Dojo, but I'm not sure where to start.
The icon has to be similar to those found on Facebook and Whatsapp, showing how many new messages/notifications you have.
I've been looking in the Dojo reference, but couldn't find a good widget to use. Maybe I'm missing something obvious, but I might as well ask it here.
Googling hasn't been of much use unfortunately.
As far as I know there's no widget that automatically does the stuff for you. This problem is far too specific to provide a general widget for it. You also have to think about several things before you can start.
Do you want to use WebSockets? The web is generally made for pulling content, if you want to push your notifications from your server to your client, then you will need to look at WebSockets. A good tutorial to use them can be found on Sitepen.
If you don't want to use websockets (you're not able to create a websocket server or you have some other reasons) then you will probably have to use a simple "REST service" and obtain the amount of notifications from it. This means you're script won't be "live", so you will need to pull the content from the webservice every X seconds/minutes. This means you need a normal AJAX request which can be done with the dojo/request/script module.
If you need to time this AJAX request, you can use the dojox/timing module.
This is only the "logic" part, the user interface (icon + # notifications) can be made by yourself with plain HTML and CSS.
What about dojox/mobile/Badge:
http://livedocs.dojotoolkit.org/dojox/mobile/Badge
?
From comment:
"Maybe you can find something in the DojoX library" -
off course you will find much.
I would recommend
dojox/socket
see http://dojotoolkit.org/features/1.6/dojo-websocket