I have a system where various rss feeds are added. I want to follow the content and be notified when new content is added in the feeds without having to check them one by one.
I found out there is a pubsubhubbub protocol and that publishers can use various hubs which implement this protocol in their feeds. This is how I found out about superfeedr and I'm trying to work with their XMPP API. I installed their nodejs library and made a few subscribe tests that worked fine.
Is it possible to use the node superfeedr module to subscribe to a feed that doesn't use superfeedr? For example I found one that has:
link rel='hub' href='http://pubsubhubbub.appspot.com/'
Do I have to handle each hub separately or I can just send them the same requests based on the protocol?
Alex, I created Superfeedr.
Yes, of course it is possible to subscribe to a feed that doesn't use Superfeedr. Superfeedr acts as a default hub. You can add any feed, and you should get notifications for it. The only difference is that you may see delays. We poll feeds every 15 minutes, so, unless there are strong caches, you should see messages no later than 15 minutes after they've been published.
2 and 3 are probably not relevant given 1. However, I believe there are a couple other PubSubHubbub libraries, but they all require that your endpoint is outside the firewall... and all of them will only work for feeds that use the pubsubhubbub protocol. Even though your application will use each hub separately, the code should be the same, so that's transparent for you.
I hope this helps.
Related
Bots are amazing, unless you're Google Analytics
After many months of learning to host my own Discord bot, I finally figured it out! I now have a node server running on my localhost that sends and receives data from my Discord server; it works great. I can do all kinds of the things I want to with my Discord bot.
Given that I work with analytics everyday, one project I want to figure out is how to send data to Google Analytics (specifically GA4) from this node server.
NOTE: I have had success in sending data to my Universal Analytics property. However, as awesome as that was to finally see pageviews coming into, it was equally heartbreaking to recall that Google will be getting rid of Universal Analytics in July of this year.
I have tried the following options:
GET/POST requests to the collect endpoint
This option presented itself as impossible from the get-go. In order to send a request to the collection endpoint, a client_id must be sent along with the request itself. And this client_id is something that must be generated using Google's client id algorithm. So, I can't just make one up.
If you consider this option possible, please let me know why.
Install googleapis npm package
At first, I thought I could just install the googleapis package and be ready to go, but that idea fell on its face immediately too. With this package, I can't send data to GA, I can only read with it.
Find and install a GTM npm package
There are GTM npm packages out there, but I quickly found out that they all require there to be a window object, which is something my node server would not have because it isn't a browser.
How I did this for Universal Analytics
My biggest goal is to do this without using Python, Java, C++ or any other low level languages. Because, that route would require me to learn new languages. Surely it's possible with NodeJS alone... no?
I eventually stumbled upon the idea of actually hosting a webpage as some sort of pseudo-proxy that would send data from the page to GA when accessed by something like a page scraper. It was simple. I created an HTML file that has Google Tag Manager installed on it, and all I had to do was use the puppeteer npm package.
It isn't perfect, but it works and I can use Google Tag Manager to handle and manipulate input, which is wonderful.
Unfortunately, this same method will not work for GA4 because GA4 automatically excludes all identified bot traffic automatically, and there is no way to turn that setting off. It is a very useful feature for GA4, giving it quite a bit more integrity than UA, and I'm not trying to get around that fact, but it is now the Bane of my entire goal.
https://support.google.com/analytics/answer/9888366?hl=en
Where to go from here?
I'm nearly at the end of my wits on figuring this one out. So, either an npm package exists out there that I haven't found yet, or this is a futile project.
Does anyone have any experience in sending data from NodeJS to GA4? (or even GTM?) How did you do it?
...and this client_id is something that must be generated using Google's client id algorithm. So, I can't just make one up...
Why, of course you can. GA4 generates it pretty much the same as UA does. You don't need anything from google to do it.
Besides, instead of mimicking just requests to the collect endpoint, you may just wanna go the MP route right away: https://developers.google.com/analytics/devguides/collection/protocol/ga4 The links #dockeryZ gave, work perfectly fine. Maybe try opening them in incognito, or in a different browser? Maybe you have a plugin blocking analytics urls.
Moreover, you don't really need to reinvent the bicycle. Node already has a few packages to send events to GA4, here's one looking good: https://www.npmjs.com/package/ga4-mp?activeTab=readme
Or you can just use gtag directly to send events. I see a lot of people doing it even on the front-end: https://www.npmjs.com/package/ga-gtag Gtag has a whole api not described in there. Here's more on gtag: https://developers.google.com/tag-platform/gtagjs/reference Note how the library allows you to set the client id there.
The only caveat there is that you'll have to track client ids and session ids manually. Shouldn't be too bad though. Oh, and you will have to redefine the concept of a pageview, I guess. Well, the obvious one is whenever people post in the chan that is different from the previous post in a session. Still, this will have to be defined in the code.
Don't worry about google's bot traffic detection. It's really primitive. Just make sure your useragent doesn't scream "bot" in it. Make something better up.
I am creating a Hubot script to do some stuffs. However due to some circumstances, we need to make sure certain commands only works when sent via PM (private message) instead of channels (e.g. telling the bot to save some password).
As a workaround, I am currently using this checker function:
is_private = (res) -> res.message.room == res.message.user.name
We are currently using this with Slack, but need to make the script also works with other adapters as well since we're going to release it as open source project.
Is this method reliable enough? Is there any built-in methods to check this?
In your case, consider use hubot-auth to control permissions for your users
https://www.npmjs.com/package/hubot-auth
or
How to setup Hubot basic permissions?
The Adapter interface is mum on private messages (Campfire, the first adapter, has absolutely no support for PMs). I think your method will work fine for most adapters, but cross-adapter PM behavior is an ongoing issue. Maybe, sometime, I'll get to work on the Adapter interface, but most of my effort is currently focused on the message processing flow.
I'd recommend going with it and keeping an eye out for issues after you release.
I have seen this article about passing messages between extensions which works when you know the extension ids.
But, what I would really like to do is pass a message from a packaged app to an extension.
I tried to implement the steps in the article above. But i received the message that chrome.extension is not defined.
I assumed this is because it is a packaged app, that it doesnt have chrome.extension.
Is there a way to do this?
Thanks
AH
You should be able to accomplish via Web Intents, specifically the "explicit" variant that can be targeted at a specific app/extension. See this sample in the apps repository for two apps that communicate via explicit Web Intents (the same concept can be applied to an extension and an app, except the extension would receive intents via a URL specified in the manifest).
Cross-extension messaging
In addition to sending messages between different components in your
extension, you can use the messaging API to communicate with other
extensions. This lets you expose a public API that other extensions
can take advantage of.
Listening for incoming requests and connections is similar to the
internal case, except you use the runtime.onMessageExternal or
runtime.onConnectExternal methods.
http://developer.chrome.com/dev/extensions/messaging.html
Hey guys is there anyway to circumvent the Twitter rate limit by using a Twitter widget and embedding it in the end users browser? In other words would using Twitter Search widget apart of the user's browser's session (while they are using my app) so that their calls to Twitter are made through their IP address (and not the IP address of my app) - I would do this to avoid getting the IP of my app blacklisted. Is that fine or would that violate Twitter's terms of use?
I would use the Twitter search widget. Would using Twitter stream be a better idea?
Depending on your implementation, you may want to consider the Streaming API for this purpose. It's probably considered more "kosher". You can query for a particular set of phrases and open whats called a firehose, and Twitter will push updates to your application and it's not really bound by rate limits although there is a rate limit system in place here. For my particular use case, this didn't work and I had to do what you described in your question. But if you want to use the Twitter streaming API and are using PHP in conjunction, I would highly recommend looking at the 140 Twitter Server framework at the start. It will make it a lot easier to implement the streaming API at the get go.
This is fine, and this is the solution I'm using. Use jQuery or something similar for the Ajax calls and send the response to the server for processing. The carry will be on each of the IP's that use your application. So, if that user is spamming Twitter with requests - they would get blacklisted, not your application.
I am tring to do the following:
I want a SIP User Agent to perform the following steps on receiving an inbound call (call set up request).
1) Read the caller ID from the SIP request and Log the details to file
2) Drop the call (terminate the call without picking up the call)
I have not been able to find a high level api that will let me script this interaction. I have taken a look at Jain but it seems to be a very low level API and I imagine will require a lot of work to get the above interaction coded up and working. Can anyone suggest an apropriate API to implement the above.
NOTE: I have tried ROXEO.com and their CCXML based apps are great but their pricing is aimed at big companies, so Voxeo is not an option.
There are quite a few open source SIP stacks around two examples of many are pjsip and sipsorcery (as a disclaimer I do some dev work on the latter). It will all depend on your language and prefeences as to which one suits. There are also lots of SIP tools around that may be a more efficient approach for you such as SIPp.
Apart from those options and given your very simple requirements you could probably get away with 20 or 30 lines of code that listens on a UDP socket, parses the incoming INVITE to extract the From header and then sends back a rejection response by changing the top line of the request to make it a response and sending it back to where it came from.
If you're using C, try eXosip, you could easily whatever you want.
Here
It's clear that Jain SIP could be quite painful (actually all the configuration but the API otherwise is quite high-level, to manipulate messages) , but you can take the jain-sip-presence-proxy and removes almost everything from their INVITE handler and build your own message
if you're using java, you can use peers which provides a high level api in package net.sourceforge.peers.sip.core.useragent. The entry point is UserAgent class, take a look at gui package if you want to see how it is used. Traces are in log files so you can track calls.
ivrworx but it can handle one scenarion at a time only
Asterisk pbx can act as a simple sip client, and do just that, however if you wante to integrate something in your own solution, take a look at: http://sipsimpleclient.org/projects/sipsimpleclient/wiki/SipMiddlewareApi