Socket.IO

问题 Is it possible to upload image from client to server with socket.io? 回答1: The WebSocket spec states that WebSockets should be able to send binary data as an ArrayBuffer, however this is not well supported by browsers. Socket.io limits you to sending strings, but you can send Base64 encoded data. So use the canvas toDataUrl() method to get an image as base64 and you're all set. Here's a great article on the subject. 回答2: I would suggest using something like File Stack https://www.filestack.com

问题 I'm using CloudFlare to implement a REST API. I need to add some notifications which are implemented with socket.io on Node.JS. When socket.io uses a live connection to keep client updated it will work because the connection is established between server-client, but what happens when socket.io does polling? Does CloudFlare use always the same server for each client? 回答1: WebSockets are standardised by the IETF in RFC 6455, this allows you to avoid polling behaviour and instead directly

问题 I am using laravel-echo-server to run Laravel Echo to broadcast events. I have a user counter channel which shows all the users on the app. For this I am using a presence channel. This works fine for logged in users, but guests just never get connected. I've setup the below in the BroadcastServiceProvider: Broadcast::channel('global', function () { return ['name' => 'guest']; }); Which from what I can tell, should allow everyone in as 'guests'. I'm guessing there's some middleware or auth

问题 I am developing a real-time text editor with paragraph locking property similar to https://quip.com/. in socket.io and nodejs . It means when you write onto a given paragraph, other collaborators cant edit it. Moment you hit enter or move cursor to a new line that paragraph becomes Editable for other Collaborators . I am quite stuck after this. I am thinking a nice approach to move further. Suggestions please. Below is my code which works perfectly. Till now i can get list of all

问题 I have the below auth guards that is defined for my app admins , designers , customers and etc. the default guard is the designer guard . I want every guard to have his own private channel . So I am defining it in my channel.php with multiple entries for each like below Broadcast::channel('private.admins.{id}', function ($admin, $id) { Log::info($admin); //logging the admin }); But this is always binding with default guard class so my question is how do I tell that to use here Admin model . I

问题 I have the below auth guards that is defined for my app admins , designers , customers and etc. the default guard is the designer guard . I want every guard to have his own private channel . So I am defining it in my channel.php with multiple entries for each like below Broadcast::channel('private.admins.{id}', function ($admin, $id) { Log::info($admin); //logging the admin }); But this is always binding with default guard class so my question is how do I tell that to use here Admin model . I

问题 I tried - for the first time - to control a socket by such a low level way Walking through tutorial, I faced these lines : byte[] byTrue = new byte [4] {1, 0, 0, 0}; byte[] byOut = new byte [4] {1, 0, 0, 0}; _Socket.IOControl(IOControlCode.ReceiveAll, byTrue, byOut); I referred to the MSDN documentation, but it's really very ambiguous. Question: What are these 2 bytes' arrays? What are they used in? The documentation says OPTIONS - what options? 回答1: The byte array arguments to Socket

问题 I tried - for the first time - to control a socket by such a low level way Walking through tutorial, I faced these lines : byte[] byTrue = new byte [4] {1, 0, 0, 0}; byte[] byOut = new byte [4] {1, 0, 0, 0}; _Socket.IOControl(IOControlCode.ReceiveAll, byTrue, byOut); I referred to the MSDN documentation, but it's really very ambiguous. Question: What are these 2 bytes' arrays? What are they used in? The documentation says OPTIONS - what options? 回答1: The byte array arguments to Socket

问题 I tried - for the first time - to control a socket by such a low level way Walking through tutorial, I faced these lines : byte[] byTrue = new byte [4] {1, 0, 0, 0}; byte[] byOut = new byte [4] {1, 0, 0, 0}; _Socket.IOControl(IOControlCode.ReceiveAll, byTrue, byOut); I referred to the MSDN documentation, but it's really very ambiguous. Question: What are these 2 bytes' arrays? What are they used in? The documentation says OPTIONS - what options? 回答1: The byte array arguments to Socket

问题 I've been interested in the Socket.io project recently and I wonder if there's easy way to send image or even other type of files without having to use other library. I'm not trying to upload the file to the server to store, I just want to broadcast it to those who are in the chat room at that moment. So the code should be minimal. However I'm really bad at encoding/decoding stuff, so some example code would be great. 回答1: I've adapted the official chat example of Socket.io and added