Is there an example on how to do websockets with authenticat

Question

Is there an example on how to do websockets with authentication on ktor 2 0 0 somewhere slightly smiling face I m using Firebase authentication in a custom plugin right now it uses a Baerer Token I m currently assuming I have to do a http call first to establish session authentication

Julius · Answer

To iterate it seems it was possible before to add headers to the initial websocket http request according to this But my code doing the same isn t sending the headers I m looking at the request data with wireshark ``` client webSocket method = HttpMethod Get host = localhost port = 8080 path = ws request = header My Test Header My Test Header Value send Frame Text Hello from client while true val othersMessage = incoming receive as Frame Text println othersMessage readText val othersMessageText = othersMessage readText if othersMessageText == close break val myMessage = Answer send Frame Text myMessage ``` It should at least allow the `Sec WebSocket Protocol` header since that s it seems

Aleksei Tirman [JB] · Answer

I ve checked that the `My Test Header` header is actually sent while using the code from your example I observe the same behavior with the `Sec WebSocket Protocol` header

Julius · Answer

< Aleksei Tirman JB > Thanks a lot Could you send me the code you used It must mean I m doing something wrong at a different place pensive

Aleksei Tirman [JB] · Answer

I ve used this part of your code ```client webSocket method = HttpMethod Get host = localhost port = 8080 path = ws request = header My Test Header My Test Header Value ```

Julius · Answer

< Aleksei Tirman JB > Oh I meant the complete code example just in case I messed up imports or dependencies but I can also try to make a minimal reproducible example v

Julius · Answer

< Aleksei Tirman JB > I made a reproducible example It s run with ` gradlew browserDevelopmentRun` and automatically creates the websocket connection on browser load

Julius · Answer

Wireshark capture of the request

Julius · Answer

Could the issue be that I m making the request from the browser

Aleksei Tirman [JB] · Answer

Yes There is no way to with an initial Websockets request in the browser environment Also there is in Ktor that prevents from sending protocols via the `Sec WebSocket Protocol` header

Julius · Answer

Thanks Then I ll look into transmitting the info that I need through cookies v

Julius · Answer

On that note is it possible to send arbitrary cookies with the initial websockets request in the browser environment

Aleksei Tirman [JB] · Answer

I don t think you can send arbitrary cookies

Julius · Answer

```fun createWebsocket GlobalScope launch val client = HttpClient install WebSockets println Starting websocket client webSocket method = HttpMethod Get host = localhost port = 8080 path = ws request = cookie name = user name value = jetbrains expires = GMTDate seconds = 0 minutes = 0 hours = 10 dayOfMonth = 1 month = Month APRIL year = 2023 ``` Indeed this does not send the specified cookie It does send all the cookies that are set in the browser session Is that a requirement for sending cookies with websocket requests

Aleksei Tirman [JB] · Answer

I guess It s a browser security restriction

Julius · Answer

A pity since it now requires different implementations in my multiplatform project But thanks again for your help and sorry to take up so much of your time