Does Appwrite allow SSE ?

i'm trying to setup a slack bot on my site.

Your deployed SSE endpoint is returning a non‑SSE response
…and the browser immediately closes the connection.
readyState: 2 means:
EventSource.CLOSED

The browser tried to connect, got something that was NOT a valid SSE stream, and shut it down instantly.
This is not a network issue.
This is not a CORS issue.
This is not a credentials issue.
This is the browser saying:
“I hit that URL, and the server did NOT give me a valid SSE stream.”


95c8c694ebafe2f0.js:1 SSE connecting...
1d233431dc2d0ddf.js:1 authProvider currentUser:
Object
95c8c694ebafe2f0.js:1 Message sent.
95c8c694ebafe2f0.js:1 SSE error:
Event {isTrusted: true, type: 'error', target: EventSource, currentTarget: EventSource, eventPhase: 2, …}
isTrusted
:
true
bubbles
:
false
cancelBubble
:
false
cancelable
:
false
composed
:
false
currentTarget
:
null
defaultPrevented
:
false
eventPhase
:
0
returnValue
:
true
srcElement
:
EventSource
onerror
:
e=>console.log("SSE error:",e)
onmessage
:
e=> {…}
onopen
:
()=>console.log("SSE connection opened")
readyState
:
2
url
:
"https://eldarlandslarp.appwrite.network/api/slack/stream"
withCredentials
:
false
[[Prototype]]
:
EventSource
target
:
EventSource
onerror
:
e=>console.log("SSE error:",e)
onmessage
:
e=> {…}
onopen
:
()=>console.log("SSE connection opened")
readyState
:
2
url
:
"https://eldarlandslarp.appwrite.network/api/slack/stream"
withCredentials
:
false
[[Prototype]]
:
EventSource
timeStamp
:
35299.5
type
:
"error"
[[Prototype]]
:
Event

I can help! Your SSE endpoint isn't sending valid Server-Sent Events format. The browser expects a specific format with Content-Type: text/event-stream and data in the SSE format (data: ...\n\n), but it's getting something else instead.
What does your /api/slack/stream endpoint currently return? Can you share the code that handles that route?

I can see your frontend code, but I need to see the backend code the actual /api/slack/stream endpoint that's supposed to return the SSE stream.
The issue is on the server side. Your endpoint needs to:
Set headers: Content-Type: text/event-stream
Send data in SSE format: data: {...}\n\n
Keep the connection open
Can you share the server-side code that handles the /api/slack/stream route? That's where the problem is.

AH you mean these.

Can you just send me a message if you don’t mind