YouTube API LiveChat new message notification - youtube-data-api

I am interested in following the Live Chat Messages of a live video.
But the only method I could find of following the new messages is querying the same page of result until it is filled and then get the next one.
Which also means, my application won't be able to "see" the new messages until after I request once again the chat messages.
Is there any way to have YouTube "notify" (generic term here) my application of the presence of a new message in the chat (WebSocket / Long Polling) ? Or will I have to query for new messages on a set timer ?

Related

How to send direct message in Slackbot

I would like to send messages to users through Slackbot, just like integration apps such as Zapier.
If I set the channel ID to the user ID it sends a 1:1 message showing up in the Apps tab, but what I really would like to do is to send a message in Slackbot, as I want to create a seamless experience for a Workflow I'm creating.
Then, if I try adding the Slackbot channel ID it returns channel_not_found and there's no way to add the App there.
My current bot token scope to send messages is: chat:write and I'm sending a message using chat.postMessage
Do I need a different scope? Different API method? I've tried going through some other questions/answers, but they look outdated

Is it possible to know the number of unread Slack messages a user has with the Slack API?

I'm building a messaging integration with Slack and a client. I need to show the badges on the corresponding conversations when the users logs in to the client to show the client how many unread messages it has.
I know that the channels.history method had the unreads parameter which would return as part of the response the amount of unread messages according to the user token, but that method is deprecated and my app is too new to use it.
I'm using the conversations.history now to retrieve the messages which is what slack suggest to use instead of the deprecated method channel.history, but this new method doesn't have that parameter and doesn't show any info regarding the amount of unread messages in the conversation.
As my app is a new one and not a classic one, I cannot use the RTM API.
I'm also subscribed to the message events so that I know when a new message was posted.
My issue is that I need to know how many new messages were sent to the user while he was not logged in.
Is there any way to get that info?
Unread count is in conversations.info method, not in conversations.history. There in unread_count and unread_count_display property in reponse. Documentation is here.

Gmail API push notification duplicate message ids

I am using Gmail push notifications for email processing. When I receive a message notification from Google, I use the history list API with the previously stored historyId and can see new messages using messagesAdded. Once I have retrieved the messages, I store the last historyId for the next request.
When testing, if I send two mail messages (about 30 seconds apart) to the watched mailbox, I see two messages notifications from Google and when I call the history API for each of the notifications I see the message ids. This is all good.
If I repeat the same test but send the two mail messages immediately after each other, I get the two notifications from Google but when I call the history API for the first message, I get the two message ids in that history API call. When I call the history API call for the second notification, I get a duplicate of the last message id.
How can I prevent seeing duplicate message ids in this scenario? Any help or pointers would be much appreciated.
Updated: Added request and response example for second test.
I noticed in the response from the Google History API a historyId showing the latest messages that have been processed. If I store this value as the next start point instead of the historyId sent in the notification message, it works around the duplicate issue as on the second request there are no more messages. Not sure if this is the right way to do this as it means I don't store or use the historyId sent in the notification message.

Unable to get timestamp of the message posted by Slack App

Whenever my app posts ephemeral message to Slack channel (in response to a query by a user), I am unable to get the timestamp of my Slack app response. As I want to delete it once the user has made a selection using one of the buttons. Although I have subscribed to 'message.channels' event, I don't get a notification to my app whenever my app posts in the channel (in response to the user input), therefore, I am unable to get the timestamp of the message which I'll use to delete it. All I want is the timestamp of the message posted by my app so that I can delete it but I am unable to receive the timestamp. Please help!
For e.g. in Giphy app for Slack. Let's say the user invokes the app by calling '/giphy [dog]' where 'dog' is just an example of a search term. The app responds by sending a gif and user can either send it, shuffle to the next one or cancel it. I want a similar capability of cancelling the app response but I need the timestamp of the message in order to do so therefore I am asking for help.
Thanks.
Your approach can not work, because Slack is handling ephemeral messages differently from "normal" messages. They are only visible by one user and can not be modified by API methods (e.g. deletion).
But of course its possible to replace ephemeral messages. Here is how:
Your app can just reply to the interactive message request from Slack with a new message. That new message will by default override the original message including ephemeral messages.
You can reply in two ways:
Directly reply to the request from Slack with a message within 3 seconds
Send a message to the response_url from the Slack request within 30 minutes.
See here for the official documentation on how to respond to interactive messages.
This approach works both with interactive messages and slash commands.
See also this answer for a similar situation.

How do I receive only the messages that are direct messages to my bot user?

I have successfully setup my slack bot app, have enabled events etc. I want to receive any direct messages that the members of my slack team send to my bot. For this, I have only enabled Bot Events and No Team Events like below
However, I do not get any event on my webhook on this setting.
If I enable message.im event under Team Events, then I start getting events. But then, I get every message that the user (who has installed the app) sends to any other user in the team.
How do I get only the messages that are sent to my bot user?
Update 1
Based on this SO question I created a private channel with the bot user. Even then, the messages in the private channel do not arrive in my webhook with the above event subscriptions.
Update 2
After reinstalling the app, it seems to be working fine. I have only used it for few minutes after the reinstall so far. I will keep posting here how it goes. It would still be interesting to know what went wrong where.
It is normal behavior that your script receives all messages (for every channel your bot is a member of), not only the messages sent directly to your bot. At this time you can not filter further in the event configuration. So you need to filter out any unwanted message in your script handling the event.
See also this answer.

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