I have embedded system with web socket communication. I can connect via SSL to firebase server and then do HTTP stream request so every time is something changed in DB I get notified. Everything works great but there is one thing mentioned in Firebase REST API docs which worries me. And that is point two:

2. Respect HTTP Redirects, in particular HTTP status code 307

I am requesting:

https://fakeproject-b66a6-default-rtdb.europe-west1.firebasedatabase.app/mySecretKey.json"

1. Do you know what will be the form of the Location key in the header in case of redirect?

• Will it be just path on the same server?
• Or will it be URL to the deferent one with http:// or www. prefix?

2. Will it contain my mySecretKey.json at the end?
3. Is there a possibility to try it out somewhere so I get 307 from firebase?

I need to know this because I have to properly parse it and make second request to redirect location.

CodePudding user response：

The servers for the Firebase Realtime Database REST API used to use 307 codes to redirect you to the correct server. Nowadays, they don't use a 307 as frequently anymore, but it may still occur during an update or when traffic is being moved around.

For an example of what you may get, you can try:

curl -v -H "Accept: text/event-stream" "https://s-euw1b-nss-500.europe-west1.firebasedatabase.app/test.json?ns=patryk-newest-rtdb-eu"

By passing an Accept: text/event-stream header we prevent the proxying that would otherwise happen, so we can see the redirect flow.

The response I'm getting:

< HTTP/1.1 307 Temporary Redirect
< Server: nginx
< Date: Fri, 25 Mar 2022 00:18:05 GMT
< Content-Type: text/plain
< Content-Length: 0
< Connection: keep-alive
< Location: https://s-euw1b-nss-200.europe-west1.firebasedatabase.app/test.json?ns=patryk-newest-rtdb-eu&sse=true
< Access-Control-Allow-Origin: *
< Strict-Transport-Security: max-age=31556926; includeSubDomains; preload