I am trying to implement XEP-0013 using Openfire and the gloox lib. In my XMPP client, I am calling the checkSupport() API through angloox::FlexibleOffline object in an OnConnect() event.
handleFlexibleOfflineSupport says it is supported, but I still receive offline message after presence is sent as online after login. fetchMessages() doesn't provide the messages as well. The message count that is returned is 0.
Should I configure anything on Openfire or should I change API calls?
Related
I have build a simple cloud-SDK based application for adding as a Webhook in Enterprise messaging queue to receive the events as soon as it gets inside the queue.
I have an OPTIONS and POST function. OPTIONS is for the handshake with the queue and it works.
Now, when there is message in the Queue, it hits my application with the POST block but the request body is coming as empty object.
I have tried the same from the postman, i'm able to receive the data in request body. Only from the Enterprise messaging queue, the data is empty.
In contrast, to verify this, I have used a Express based nodejs application, there i'm able to receive the data from the queue.
What am i missing in the Cloud-SDK based code ?
POST block, looks like this
#Post('ems-events')
receiveEmsEvents(#Body() requestBody: string, #Req() req:Request) {
Logger.log("Event Received with Data:");
Logger.log(requestBody);
Logger.log(req.body);
Logger.log("Log over--");
Logger.log(Object.keys(req));
return {};
}
The SAP Cloud SDK for JavaScript does not offer any support for Enterprise Messaging as of today. The code you're writing here is most likely Nest.js code, which is an independent framework.
That being said, Nest.js does run Express.js under the hood by default. So if you've been able to make it work in Express, you should be able to make it work in Nest.
I'm currently working on a push notification API that will work with several apps at once, handling notifications and reducing programming time for future apps. It's already partially working, as I'm able to register and receive notifications on Android devices.
Eventually, one of our apps is gonna send broadcast notifications to registered users. But some tokens might be expired, which will lead to a GCM failure. I already tested, and it seems that sending an array of tokens to GCM with a single http call is working really well, as devices with valid tokens got their notifications.
What I wasn't able to find searching GCM documentation was a way to get more details in case of failure. For example, when I send a notification to two users, one with a valid token and the other with an invalid one, I got this result :
{
"multicast_id":7625209716676388798,
"success":1,
"failure":1,
"canonical_ids":0,
"results":[
{"error":"InvalidRegistration"},
{"message_id":"0:1466511379030431%c4718df8f9fd7ecd"}
]
}
We can see that one of the messages failed to send, but what I'm looking for is a way to get more details, ideally the token that leads to a failure, so I can remove it from my database.
Any way to achieve that ? Using the message_id maybe ? Or is there any solution for me to find invalid tokens stored in my database so I can clear them ? I might have missed something in the documentation, even a link to it would be useful.
Based from this documentation, the GCM server will respond to your server with some information about the token you used to try to send the push notification.
According also to this link, if the app server fails to complete its part of the registration handshake, the client app should retry sending registration token to the server or delete the registration token. Wiping old tokens from the GCM servers can be done with ÌnstanceID.deleteToken().
Check these links:
How to remove gcm id from server which is not used
GCM get invalid tokens when sending to multiple devices at once
I am working on a chat app using XMPP Protocol.
I tried following
this tutorial from github . Everything is working fine using
XMPP.
But I'm unable to receive offline messages when user comes
online.
As user A is logged out and user B sends messages to user A, and when user A logs into app, it must receive all the messages that
were sent by user B during offline session.
How can I receive these offline messages?
My app is totally stuck on this issue. Please help if anyone
knows the solution. Any help will be appreciated. Thanks
You need to enable mod_offline on server, if you are using ejabberd XMPP Server.
Here is the code needs to enable module:
ignore_pep_from_offline: true
max_user_offline_messages:
admin: 5000
all: 100
mod_offline:
access_max_user_messages: max_user_offline_messages
Write this code in ejabberd.yml config file.
It will store unto 100 messages per user received when client was offline.
At client side, you may have to register for service:
'http://jabber.org/protocol/disco#info'
If you done this, whenever offline client gets online, server will send those stored messages to respective client.
You've to send Request for offline message if server supports. XMPP works on TCP protocol so as soon as client is up, it should send request to server.
<iq type='get'>
<query xmlns='http://jabber.org/protocol/disco#info'
node='http://jabber.org/protocol/offline'/>
</iq>
I'm using a SaaS for my AWS instance monitoring and Mandrill for email sending/campaigns.
I had created a simple chart with Zapier but I'd rather like to host it myself. So my question is:
How can I receive a webhook signal from Mandrill and then send it to Datadog from my server? Then again I guess hosting this script right on the same server I'm monitoring would be a terrible idea...
Basically I don't know how to "receive the webhook" so I can report it back to my Datadog service agent so it gets updated on their website.
I get how to actually report the data to Datadog as explained here http://docs.datadoghq.com/api/ but I just don't have a clue how to host a listener for web hooks?
Programming language isn't important, I don't have a preference for that case.
Here you can find how to add a new webhook to your mandrill account: https://mandrillapp.com/api/docs/webhooks.php.html#method=add
tha main thing here is this:
$url = 'http://example/webhook-url';
this is your webhook URL what will process the data sent by mandrill and forward the information to Datadog.
and this is a description about what mandrill will send to your webhook URL: http://help.mandrill.com/entries/21738186-Introduction-to-Webhooks
a listener for webhooks is nothing else then a website/app which triggers an action if a request comes in. Usually you keep it secret or secure it with (http basic) authentication. E.g. create a website called http://yourdomain.com/hooklistener.php. You can then call it with HTTP POST or GET and pass some data like hooklistener.php?event=triggerDataDog or with POST and send data along with the body. You then run a script or anything you want to process that event.
A "listener" is just any URL that you host where you can receive data that is posted to it. Keep in mind, since you mentioned Zapier, you can set up a trigger that receives the webhook data - in this case the listener URL is provided by Zapier, and you can then send that data into any application (or even post to another webhook). Using Zapier is nice because it doesn't require you to write the listener code that receives the hook data and does something with it.
I have installed and run ejabberd successfully. I've tested the chat function and it works well.
I have a problem with the 'Add Buddy' process. When I add a buddy, the buddy has to manually approve the request. I would like to skip this step and have all buddy requests to be approved automatically.
I'm getting a presence type of 'subscribe' for authorization requests. How can I authorize a buddy programmatically? I'm using objective c.
Ok I found the answer to my question.
Basically, just follow the protocol on http://xmpp.org/rfcs/rfc3921.html#sub and programmatically send a subscribe request.