Chat | chat application built with ASP.NET Core Blazor WebAssembly | Serverless library
kandi X-RAY | Chat Summary
kandi X-RAY | Chat Summary
A chat application built with ASP.NET Core Blazor WebAssembly for the front-end, Amazon Cognito for user authentication, API Gateway WebSocket for communication, Amazon DynamoDB for storage using a single-table design, and AWS Lambda for the business logic written in C#. Finally, the application is delivered as as self-contained AWS CloudFormation template.
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QUESTION
In the following code how can we pass the context.args and context to another function, in this case callback_search_msgs
ANSWER
Answered 2021-Jun-15 at 18:39A few notes:
- job callbacks accept exactly one argument of type
CallbackContext. Not two. - the
job_kwargsparameter is used to pass keywoard argument to the APScheduler backend, on whichJobQueueis built. The way you're trying to use it doesn't work. - if you want to know only the
chat_idin the job, you don't have to pass the wholecontextargument ofsearch_msgs. Just docontext.job_queue.run_once(..., context=chat_id,...) - if you want to pass both the
chat_idandcontext.argsyou can e.g. pass them as tuple:
QUESTION
[
'854408347192786944',
Message {
id: '854408347192786944',
type: 0,
timestamp: 1623777224110,
channel: TextChannel {
id: '768848054064644156',
type: 0,
client: [Client],
guild: [Guild],
name: 'dev-chat',
position: 23,
parentID: '768835234291777556',
permissionOverwrites: [Collection [Map]],
rateLimitPerUser: 0,
topic: null,
messages: [Collection [Map]],
lastMessageID: '854408347192786944',
lastPinTimestamp: null
},
content: 'nittro',
hit: false,
reactions: {},
guildID: '768551672195710997',
messageReference: null,
flags: 0,
author: User {
id: '585548631268917254',
bot: false,
system: false,
avatar: '902e633f0c1af22ee6eff4f114b533c1',
username: '8au',
discriminator: '0489',
publicFlags: 128
},
referencedMessage: null,
interaction: null,
member: Member {
id: '585548631268917254',
guild: [Guild],
user: [User],
game: [Object],
nick: null,
roles: [Array],
joinedAt: 1603307397735,
premiumSince: null,
pending: false,
status: 'online',
clientStatus: [Object],
activities: [Array]
},
mentionEveryone: false,
mentions: [],
roleMentions: [],
pinned: false,
tts: false,
attachments: [],
embeds: []
}
]
ANSWER
Answered 2021-Jun-15 at 17:33Try
QUESTION
I need to get the value of another child in my Firebase database inside addChildEventListener but addValueEventListener won't get triggered. Meaning that user_name_list will always be empty. How Can I solve this issue? Thanks!
ANSWER
Answered 2021-Jun-15 at 14:40The problem is not so much that your ValueEventListener isn't getting triggered, but that you call list_fonct before that happens.
I'll include some links at the bottom to learn more about this, but for now the simple fix is to move the call to list_fonct into the onDataChange that is called one the user data is loaded:
QUESTION
I'm doing a Group Chat with Firebase and currently I'm using a RecyclerView to display chat messages and I'm having a problem. When you open the app in the fragmented home and you go to chat activity and start chatting (adding elements to recycler view) all goes fine. But, when you go via the NavigationDrawer to another fragment and get back to the chat fragment using again this Navigation Drawer. When you add one element in the chat it appears all in the blank it just displays the last message. Anybody knows why does this happens?
Here I leave the RecyclerView Adapter Code:
...ANSWER
Answered 2021-Jun-15 at 13:55To solve your problem you can just remove the OnResume method because you are initializing the array every time you change between fragments and that is the problem.
QUESTION
I have a tab button that handles the chatbox functionality. By default it is closed and when clicked, expands into the chat box. When it is closed all the buttons around it work as intended, however, when expanded the buttons above it can no longer be clicked like there is a invisible div over them.
Here I will provide the pictures of what I am describing and the corresponding code.
Closed(plus sign button working correctly)
Opened(plus sign button no longer working)
Code:
...ANSWER
Answered 2021-Jun-15 at 13:20Your #olark-box-wrapper is a div with position:absolute; top: 0; height:100%; z-index:9999999999; ... no wonder it's taking up the full height of the right window area on top of everything else. And even though it's a transparent div, mouse clicks are handled by the event handlers of that div, not by those of the elements below it.
You could add pointer-events: none; to that div, making it "transparent" to user interaction. You may have to add pointer-events: visible; to its childs, to avoid the pointer-events: none; attribute being inherited by the children.
Alternatively, you could change the layout so that the #olark-box-wrapper is exactly the same height as its children.
One note about your choice of z-index: this number might be a bit too high, see Minimum and maximum value of z-index? (tl;dr: keep it in the range of a signed 32-bit number).
QUESTION
Created a server.js which indicates to index.html file.(server.js and index.html locates on the same folder). In that html I couldn't use any styling from external css file or any assests from local storage. But inline css & images from internet is working fine.
server.js
...ANSWER
Answered 2021-Jun-15 at 12:36All of your files are inside frontEnd folder. Like in here:
Also you don't serve static files anywhere in your code. It should be something like in the docs:
app.use(express.static('public'))
QUESTION
I have been searching a lot, but probably I don't know how to ask the question properly.
I'm storing all chat messages between all users in table called 'user_messages' which looks like this:
ANSWER
Answered 2021-Jun-15 at 10:30One method uses window functions:
QUESTION
Good day everyone, I am currently struggling with writing mysql query which should make chat group from messages. App which I am making is taking data from other service, so it's not up to me to also manage chat groups, I need take this info from messages themselves.
My table of messages looks like this:
id sendAddr receiveAddr lastMessage text read 1 Ccbbd6uUZF2GD5wE5LEfjGPA3YWPjoLC6P CMKovgETx2oYxhoYKAeSakmipBjbmQ9ZHF 2021-06-02 12:57:39 test3 0 5 Ccbbd6uUZF2GD5wE5LEfjGPA3YWPjoLC6P CMKovgETx2oYxhoYKAeSakmipBjbmQ9ZHF 2021-06-02 13:00:44 test3 0 7 CMKovgETx2oYxhoYKAeSakmipBjbmQ9ZHF Ccbbd6uUZF2GD5wE5LEfjGPA3YWPjoLC6P 2021-06-10 23:13:59 testVPS 0 8 CMKovgETx2oYxhoYKAeSakmipBjbmQ9ZHF CYfMNQ62u1qwhCBqXzcmeJ8D9j4Yc1Pwef 2021-06-10 20:03:59 neco 0 9 CYfMNQ62u1qwhCBqXzcmeJ8D9j4Yc1Pwef CMKovgETx2oYxhoYKAeSakmipBjbmQ9ZHF 2021-06-10 21:03:59 test 0My only input data which I sent from my mobile app is receiveAddr so I need to add this to group anything which containes address in either sentAddr or receiveAddr, here is representation of what I want to achieve
It needs to have latest text counted amount of 0 in read column and lastMessage which is time of last message
I came up with something which sort of works if the user of the mobile app would be just receiving messages, which would be this:
SELECT sentAddr, COUNT(IF(campus.messages.read = 0, 1, NULL)) as unread, max(receiveTime) as lastMessage, max(text) as text FROM campus.messages WHERE (SELECT max(receiveTime) FROM campus.messages) AND receiveAddr = 'CMKovgETx2oYxhoYKAeSakmipBjbmQ9ZHF' GROUP BY sentAddr, receiveAddr
But sadly that does not get me a text from the latest message and not even taking into account that if the same user send some message, it shows as different group, which is not really helpful. I also came up with something which groups sendAddr and receiveAddr into one group no matter if it's on sending or receiving side:
GROUP BY CONCAT(LEAST(receiveAddr,sentAddr),' ', GREATEST(receiveAddr, sentAddr))
However in that case I can't with this added to upper query, it does not retrieve latest text, which is useless. So is there any chance of doing this with one query, no matter how long and convoluted it would be? And just to remind, only input data is user's address, which can be either sending or receiving address from the table. So is there any solution to this?
Version of the mysql database is 8.0.25
ANSWER
Answered 2021-Jun-15 at 07:54I figured it out, here it is:
QUESTION
Hello we are trying to implment a Chat feature in our already working applicaiton which is a MERN stack app, we opted to use socket.io because its fairly easy to set up and use,we managed to get it working locally but when we deployed on our dev server the chat wasn't working , we followed this socket.io document to try and solve the problem which served us well when we had the CORS problem locally , https://socket.io/docs/v3/handling-cors/ this is the server side code used :
...ANSWER
Answered 2021-Jun-14 at 20:38the solution was to use the website URL in both settings; for the cors origin address in the backend and for the socket creating in the front end so
QUESTION
does someone encounter this problem while installing - react-messenger-customer-chat? [Next.js, tailwind] Here is github repo: https://github.com/Yoctol/react-messenger-customer-chat
package.json
...ANSWER
Answered 2021-Jun-14 at 11:20The problem is here:
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