Connecting to socket server from an external app

[htatd]

Hi! I’m creating a mobile app with React Native. The last piece that’s missing for me is connecting to socket events from my Wappler web app.

Is it possible to connect the react native app to the socket.io server made with Wappler, with the socket-client library?

Socket.io-client’s documentation says:

From a different domain​

In case your front is not served from the same domain as your server, you have to pass the URL of your server.

const socket = io("https://server-domain.c

Does that mean that I can simply enter the domain where my Wappler web app is hosted, and it will subscribe to events?

[Apple]

@htatd

Does that mean that I can simply enter the domain where my Wappler web app is hosted, and it will subscribe to events?

Yes, but then it’s up to you to make your app work with the data structure Wappler uses for events (console.log comes to the rescue!)

[htatd]

Thanks for answering as always.

I assume that I need to allow the connection IP from the server side somehow right? Otherwise everyone would be able to use the domain to subscribe for the data Is that then related to cors?

[Apple]

@htatd

I assume that I need to allow the connection IP from the server side somehow right?

Hm? You were planning to whitelist every IP address of your mobile user?

@htatd

Is that then related to cors?

CORS applies to browsers, don’t know if it applies to React Native - you’d have to test this and see if the developer console comes up with a CORS error.

@htatd

Thanks for answering as always.

No problem

[htatd]

@Apple

Hm? You were planning to whitelist every IP address of your mobile user?

So anyone can in theory connect to my socket server for events? For now it doesn’t really matter for my use case as it’s not data sensitive, but I wonder how this is solved when this needs to be secured

[Apple]

@htatd

So anyone can in theory connect to my socket server for events? For now it doesn’t really matter for my use case as it’s not data sensitive, but I wonder how this is solved when this needs to be secured

Anyone that can access your website can access your socket server for events. I don’t know how or if Wappler has any sort of authentication for this, or if the events themselves contain sensitive data or just tell stuff like “reload this server connect called sc_chat”

Technical question on updating data via sockets in Wappler

Notice: I am giving a deliberately unrealistic scenario in order to better understand the technical part of the question I am interested in. Conditions: There are two app. They are the same except for one detail. In the first application, a data table is built based on a query that is limited to 100 records and this query is executed very quickly (let’s say 200ms). In the second application, the same query with the same data, but limited to 1 million records and executed very slowly (say 10 min…

Also, CORS doesn’t prevent someone from sneaking in your events, it only prevents another website from connecting to your website events