Email Notification - email

How to write the jsp code for auto generate a notification for a user if the user have an email inside the inbox.

You keep a place on your page which is usually empty (Empty Picture) and if there is a notification's reason you show another picture in this space which indicates this.
Each time the page is reloaded this code will be run.
Should you want his more interactive like the notification you see on Stackoverflow when an answer is posted while you write your own answer, you will have to implement something like a watchdog which keeps asking the inobox state each priode of time and use Javascript functionality, if im not wrong ajax could be usuful here but im not really sure about this.

Related

Is there a way to embed an iframe in an email with text that updates?

I want to embed an iframe inside an email that contains the 10 most recent chat messages. Is there a way to make this iframe dynamic so that it always shows the latest 10 chats regardless of when the email is opened? If the iframe is not the correct way to do this, is there a better way?
You can implement an iframe into the email - but your mail will be recognized as spam by many providers.
You should try to render your content dynamically into an image and implement that image into the email.
There kind of is a solution. It is using Dynamic CSS with a fallback of a Dynamic image to pull the information. It is not elegant really as for some clients (e.g. Outlook) this is not available at all and will only display initial information. It also utilizes a link for a style sheet which also severely limits which clients this will work in.
The fall back dynamic image is a bit more comprehensive in client support, but much harder to maintain as you will need to build something that programatically pulls the tweets (HTML webpage potentially) and then also have something that creates and hosts an image for the email to pull. This is not a short, simple thing to set up and may not be worth the required back end work for a simple email.
See this link for a bit more in-depth info on how this can be done for adding a live twitter feed into an email: https://litmus.com/blog/how-to-code-a-live-dynamic-twitter-feed-in-html-email
Since there was no accepted answer i thought i would give my input as well.
Litmus had done something similar for their live twitter feed in emails sometime ago.
The method i can think off is to create a PHP page which takes 10 images and makes it into 1. PHP can have a loop that checks for increments from a specific number and if it exists then add to that 1 image. When there is a new chat image added, PHP will disregard the last one and add the new in the loop.
For anyone reading this in 2022, this is possible with AMP.
Instead of an iframe, you can create a dynamic email easily.
check out amp.dev
Note: AMP is not supported by many email clients

Send the user to a page along with a error message

I want to set up a login page in which from anywhere on the site I can send a user to it and it will display a custom message along with it. I could use a redirect and a msg query param but is this the best way to do it?
I'm working with node.js but I'm interested in a universal solution.
If you are going for easy, you can just have GET data in the URL. But, that doesn't look that nice, if you want a rather long message, plus, GET has size restrictions, where POST (virtually) hasn't.
For using post data you could use the solution of this: JavaScript post request like a form submit question, but that gives a rather messy source code (if you want a somewhat longer text).
You could keep them in a database, and only send the ID of the message to a PHP page, and get it from the database (that's what I would do, but that doesn't mean it's a good idea, just amateur here!)
You can use jQuery or simply plain javascript to extract your message from the url; the relevant question that listed links to detailed code: jquery get querystring from URL.
Then depending on how you want it displayed, apply the extracted string to your situation.

Facebook: Updating page tabs through Javascript SDK

I'm trying to update my tab on a series of pages on facebook. Due to the volume of pages I'm making batch calls to keep from being rate limited. The batch calls work fine.
That being said, I'm trying to Update a page tab by making the call as stated here. I have the adding functionality working fine, and it's operating as it should. I use the same method of getting and using tokens, and I know moreso that it's not an issue as I have offline access so they don't expire (I get them every page load, but in reality could just store them and not worry about it).
Both calls use the same page ID, app ID, and access token and the call is good. The Error I receive is that the tab does not exist on the page, yet when I go to https://graph.facebook.com/PAGE_ID/tabs/APP_ID my tab is there showing itself as on the page. When I post to that I get the error it's not there.
My question is this: Has anyone gotten this working yet and if so what did your call look like and am I missing something?
I would post code, but it's incredibly long and intertwined in my program so it would be difficult to extract it.
There's a slight issue with the page tabs API at the moment that means in some situations you need to prepend your app id in the call with app_ so /PAGE_ID/tabs/app_APP_ID, give this a try and see if it works.

google analytics receiving data vs. redirecting that causes NS_BINDING_ABORTED

Okay so first off, sorry if the title doesn't make much sense...I'm not sure how else to summarize it!
So here's the issue:
I am using jQuery to attach a click event to my form's submit button. The jQuery click event triggers some GA code to track a virtual page view so I can use it as a step in a Goal funnel.
But what happens is that there's no delay between the GA code executing and the submit, so I'm concerned that GA isn't actually getting the data.
When I look at what's happening in firebug or httpfox (browser addons that look at the requests/response) vs. charles proxy (external sniffer, separate from browser) I am seeing two different things.
With firebug/httpfox I see the GET request to GA but status of 0 and it is showing up as
(Aborted) NS_BINDING_ABORTED
...though it does show bytes having been sent etc.. just nothing for response.
But with charles proxy, I am seeing the same GET request with a status of 200 and the 1x1 pixel response.
So my theory here is that GA is receiving the data, but that the browser is moving on before it gets the actual response - which I'm okay with, as long as GA is getting the data, I'm okay with this. But it is just my theory and I don't know...
I know I can write the code to simply delay the execution of the submit by 500ms or whatever as insurance, but I don't wanna have to do that if it's not necessary..
And I know if nothing else I can just see if the data is showing up in GA but GA has a 24-48 hour delay on data so it is hard to QA.
Does anybody know or have any suggestions from experience...has anybody else experienced this "abort" thing and can say one way or the other if it is necessary to delay the submit or whatever?
HTTPFox is not a real sniffer. It just tries to mimic one. So the data you see on it is not always what is really happening in the background. Charles should get you a better picture. If you're seeing the 200 code in Charles. So the chances are that the hit is going through.
The bad news is that when you fire hits at the time the page unloads. (Outbound clicks, insite link clicks, form submissions, window.unload, etc) they won't go through every now and then. This happens because the Google Analytics JS Call basically appends a GIF to the page. And it returns after that. Than the browser will load the gif. When the code returns the browser is free to go, and if it goes away from the page it will cancel any pending requests that it may have, including that small GIF image. So the browser might haven't sent the tracking code, or might have sent it, but the TCP connection didn't go through and the browser would need to resend the package, but he's not willing to do it anymore.
So if accuracy is a need for you, you should add a 200-500 ms delay to it. But remember that Google analytics is not an Accuracy Tool, and if some events don't go through it won't probably affect the final outcome of your analysis.
According to the informatin on this page: Sending Data to Google Analytics there is a possibility that your data is not really being sent (the bad news, as Eduardo said). Transcribing the most important information of that page, related to your doubts:
Many browsers stop executing JavaScript as soon as the page starts
unloading, which means your analytics.js commands to send hits may
never run.
An example of this is when you want to send an event to Google
Analytics to record that a user clicked on a form's submit button. In
most cases, clicking the submit button will immediately start loading
the next page, and any ga('send', ...) commands will not run.
The solution to this is to intercept the event to stop the page from
unloading. You can then send your hit to Google Analytics as usual,
and once the hit is done being sent, you can resubmit the form
programmatically.

Newsletter link tracking

I was working on a newsletter system, it's done now and it works fine. Today I was talking with a client about an upgrade for the system that does the following ->
"Automatic link tracking: View who
opened your email and what links they
clicked on."
Now, I have an idea on how to do this to add #id variable from the user query string on each link and then add a counter on each site to see who opened the link. BUT, is it possible to do this somehow else (without the counter on each link)? And how is it possible to track who opened your mail??? I saw a couple of newsletter system websites that say they can allegedly do this...
Thank you for your time!
The only way to track who opens your emails that I can think of is to use the query string trick with the images embedded in your email. This approach is obviously fragile since viewing of inline images can be turned of in most email clients.
As was mentioned; it is not possible to track everyone who opened the email. But you can track who clicked on a specific link. The method you mentioned with the #id variable will work - but instead of embedding the actual ID in the link, I would recommend encrypting that data and not sending the actual user id in the email.
To get the users who actually opened the newsletter, you can insert a 1x1 pixel image into the email as hidden content. That pixel would come from www.myserver.com/tracker.gif?foo=bar.
Then you would look at your web server log or log this request in a database so that you can track the ones who really opened the newsletter.