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The Lounge What is on Your Mind? PubNub Live Chat Beta Testing Post 303034872 by pubnubcraig on Wednesday 8th of May 2019 11:54:48 AM
Old 05-08-2019
I don't use Vue.js and I have never heard of the debounce API. Neither is specific PubNub and there are dozens of JS frameworks out there so not possible, or necessary, to know them all.

I still think PubNub needs a new configuration parameter in subscribe() which sets the polling interval for presence, but let me take another look tomorrow since you have made some changes in our configuration and see if I set subscribe presence to TRUE in my code (it is current set to FALSE), if it keeps polling and polling like crazy.

Subscribe already has an interval, it is the subscribeTimeout config, that you can set in the PubNub init, but please do not. It should only be changed for very specific reasons, that I will not get into right now. You will only cause your app to have increased transactions at no additional upside or cause your app to break depending on whether you set it shorter or longer. The default subscribeTimeout is 280s, and this is exactly the same for listening to presence events because it is on the subscribe connection. The hereNow is a completely different API and a different connection which does not work on the subscribe connection.

When you subscribe withPresence:true, you are just adding presence channels (with the -pnpres suffix) to the list of subscribed channels. When another person subscribes to that channel, those listening to presence events (withPresence:true) on that channel will receive that presence event, in realtime, not on some polling cycle.

But see my response about Announce Max. The increased transaction were self-inflicted Smilie Not that you would have known the side effects but rarely does anyone change that setting.

And I just checked the chat app again. It appears you upgraded to lastest PubNub JS SDK version - cheers - and I see that the client is not having the 10s interval response anymore. At most it will be 280s or everytime someone joins, leaves, timeouts, or a message is published and therefore received.

Cheers
Craig
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pubsub(1)						    BSD General Commands Manual 						 pubsub(1)

NAME
pubsub -- Utility for managing RSS/Atom subscriptions via the PubSub framework SYNOPSIS
pubsub [--client bundleID] subcommand [parameters] OPTIONS
The available options are as follows: --client Force tool to act as one specific client ENVIRONMENT
The pubsub tool is a command-line utility for interacting with the PubSub framework. It is intended for troubleshooting, as a simple way to see at a glance all the feed subscriptions that the agent will be periodically fetching, and to delete any left-over subscriptions (for exam- ple, of an application that's been deleted.) If the --client flag is given, the tool will act only on the PubSub client with the given bundle ID. For example, pubsub list will list only the feeds that client is subscribed to. Some subcommands, such as subscribe, require a client to be specified. The following subcommands are supported. Note that some have multi-word names. If no subcommand is given, a short listing of their names will be output. list Lists all feeds (of all clients, or of the specific client if the -client flag is given.) The title, URL and refresh interval of each feed are shown. Note that a feed subscribed by multiple clients will be listed once per client, and that each client may specify a different refresh interval. However, the PubSub agent will only fetch one copy of the feed, at the minimum interval. The interval is listed in parentheses if it is inherited from the client's default refresh interval. The interval is followed by a " * " if the feed will be refreshed even when the client application is not currently running. The interval is followed by a " * " if file enclosures will automatically be downloaded. list clients Lists all registered clients by bundle ID, along with their number of subscriptions. list client bundleID Lists only the feeds subscribed to by the given client. unsubscribe URL Unsubscribes from the feed with the given URL. subscribe URL Subscribes the client (which must be specified using --client ) to the given feed. list URL Lists all entries currently stored for the given feed. dump URL Prints the raw XML of the feed, as it was last fetched from the network. list entry identifier Lists the attributes of an individual entry, given its identifier (a 40-char hex string). dump entry identifier Prints the XML of an entry, given its identifier (a 40-char hex string). refresh URL Fetches the feed from the network immediately, and updates the database if it has changed. listen [timestamp] Installs a PSClient delegate and listens for changes to subscribed feeds and entries, printing messages when they occur. If a time- stamp is given, all changes that have occurred since that time will first be printed. The timestamp is given as a number of seconds since the system "reference date", i.e. the same as the result of -[NSDate timeIntervalSinceReferenceDate]. list downloads Lists all enclosures currently being downloaded. list enclosures Lists all enclosures, and their current download status. FILES
~/Library/PubSub/ Per-user PubSub configuration/data directory EXAMPLES
pubsub list pubsub --client com.example.SurfNews subscribe http://example.com/UninterestingFeed.xml pubsub unsubscribe http://example.com/UninterestingFeed.xml Mac OS X 10.5 February 1, 2007 Mac OS X 10.5
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