I am wondering what would be the best way to transfering data from the server to the application.
I am comfortable with javascript so web app would be a good one for publishing websocket communication.
Sending a server data to the browser like safari is easy(web app).
But I am not sure I can send a received data from the browser to my application.
is anybody tried browser to application transfer?
if this is impposible, what do I need to publish websocket connection in ios native app or
hybrid app? I have almost zero knowledge about ios. can you guys suggest good tutorials
for ios and ios websocket?
Using WebSockets from Javascript it is easy to send data from the browser to the server:
ws.send(data).
WebSocket clients are also available in iOS. See this answer.
Related
I was making a live chat feature for a website I am operating and read that socket.io is not suggested for mobile applications because it holds a live TCP connection that drains the battery. They suggested firechat as a solution for mobile. My site is in NextJS and I plan on porting to React Native for the Apps. Is it possible to make it so my socket.io only runs when the user has the app open in order to save battery life? If not, are there any other suggested methods that are free?
I have a client - server IOS application. In addition, I need to write an application for it on WatchOS. So I have 2 questions:
When I send a command from Apple Watch, do I need to connect to the server from the watch or transfer information to the IOS application and connect to the server from the phone?
If I have to connect to the server with an IOS application, then how can I connect in background mode?
As an example, you can take any messenger, for example Telegram
If I reply to a message with AppleWatch, how is the message being sent to the server (Via iPhone or directly via AppleWatch)
For connection to the server, I use the "Starscream" framework
Maybe I don't understand something, but Apple made it impossible to establish a connection in background mode
I would be grateful if you tell me or provide examples and articles, so that I could understand what to do.
Apple Watch apps can connect directly to servers using URLSession ... no need to go via the phone.
Here is an example on using URLSession in Combine, which is the "latest and greatest" way of doing things.
Otherwise this example shows using it in a more conventional way, with the bonus of SwiftUI.
Otherwise
I have an iphone app with rails serving as a backend server.
Now I need to implement a chat functionality using sockets connections.
A lot of examples show you how to implement chat using sockets in browser.
What I need here is how I can implement an application where you create socket server in the rails app , and the client in iphone app which listens to the channel I give them.
I tried using faye(examples given only how to implement client in the browser) and using fayeObjC library for iphone to create client, but am not able to listen to the channel from this library.I know I must be implementing it wrong here.
I'll share my code also here, but first I need to know is there a better solution than this?
Also I appreciate some links to some examples where socket server is in rails and clients are iphone app.
Appreciate any help and mostly need a right direction to implement it.
Update
I tried the faye combination again and it worked.Although still looking for more solutions.
You can check about TCP sockets:
http://www.raywenderlich.com/3932/how-to-create-a-socket-based-iphone-app-and-server
Chat Application Using Ruby
http://quickblox.com/modules/chat/
http://caydenliew.com/2011/11/ios-mac-os-communication-with-asyncsocket/
http://www.macresearch.org/cocoa-scientists-part-xxix-message
Next link is a comprehensive Networking Guide - Using Internet Sockets
You must keep in mind two major problems to peer-to-peer communications (Chat): reachability and how to receive new messages while your application is in the background (get notifications).
For the last you can use APNS approach: an invisible notification will be pushed to the iPhone indicating that a new message is ready to be read. So your app will make a request for unread messages (what app like WhatsApp does).
Besides TCP sockets you could use websockets (HTTP - so there are no firewall problems).
Best in class - Socket.IO.
Here you will find the wiki https://github.com/learnboost/socket.io/wiki (you will find there an extension for Ruby also)
Here an example for iOS chat client for socket.io & node.js backend
Jabber
Another option: XMPP - "stands for eXtensible Messaging and Presence Protocol. Such a protocol is open-standard and oriented to message exchange (builds and maintains by Jabber community). Message exchange happens near real time, so it is an ideal infrastructure to build chat-like applications. The protocol also implements a mechanism to notify presence information (whether a user is online or not) and the maintenance of a contact list. XMPP is a thorough protocol, which has been adopted also by big companies like Google to build their Instant Messaging service."
Here you will find all about developing a Jabber Client for iOS (enable users to sign in, add buddies, and send messages; how to install and configure a jabber server, create accounts, and interact with the server from an iOS application http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-server-setup/
I know that SocketRocket by square is a strong native Objective-C library. But it doesn't offer the channel abstraction you seem to be looking for.
If you would consider outsourcing the WebSocket connections then you could use a hosted service like Pusher, who I work for. You can publish messages (trigger events) on channels using the pusher-gem. And you can subscribe to channels and receive messages using one of Pusher's Objective-C libraries.
Other solutions will also have Objective-C libraries and you can find a list of them via this realtime web tech guide.
I am currently writing an iPhone application that sends and receives JSON data from a remote server to essentially display realtime information. Me and my partner started the project using Google App Engine (Python) for the server-side implementation mostly because it was easy to pick up and seemed suitable for our needs at the time. However, we're only just now starting to see the downsides of the framework for realtime iPhone apps - APNS is not at all supported, and neither is the GAE Channels API. So our only option for displaying the realtime server data on our app is to continuously poll the server, which certainly seems like horrible design.
We'll have to port our server-side code to a new framework. My question is, which one do we use? From numerous searches, I still have yet to find a satisfactory answer.
I should mention that I don't necessarily want the server to send push notifications. I just want to be able to push data to clients in real-time, and then manipulate that data on the iPhone client-side code. We're fine with setting up the framework on a local server if we have to.
Since you don't want to be pull data in background (lett alone if it is even possible)will have to use APNS.
But why switch away from google app angine, you could use an APNS provider like Urban Airship wich provide there on API to connect with.
You'r not even the fist to run into this problem: Apple Push Notifications on Google Appengine
Probably the easiest realtime framework you can use for sending data to iOS clients in real-time is PubNub (http://www.pubnub.com). It's reasonably priced, and it scales to anything you can throw at it. In my experience, it has no problem delivering a message to an end client in under .25 milliseconds (regardless of the number of clients it's being sent to).
Their latest version also supports APNS functionality for when you app isn't in the foreground.
https://github.com/pubnub/objective-c/blob/master/iOS/README_FOR_APNS.md
If you want to create your own APNS server (since you are running on App Engine anyway), there are examples of how to do that using App Engine's new Socket API. I've written a demo python AppEngine application that people might find helpful in this regard.
https://github.com/GarettRogers/appengine-apns-gcm
I am keen to get some apps built that can communicate with other devices/ web etc. i have played around with FTP and can get so far. But what is the best way to do this? We don't have any Servers with databases etc, but do have a site that we are currently uploading and downloading files to.
can anyone suggest a good/ better way to get the device to send/ receive files?
thanks
sam
If it's HTTP communication you're wanting to do, the simplest and most powerful tool is ASIHTTPRequest.
HTTP is the protocol your web browser uses to talk to web servers. If you have a site you're storing and downloading files at, it's almost certainly HTTP you're talking to it.
For iOS device to device communication one can use Bump API.
EDIT: I don't know of a generic framework for device <-> server communications, but having built applications that use web services of other providers like Yelp, Yahoo, Google Maps, I would say the way to go for this is to have REST based web services which exchange data in JSON format.