Fix token refresh on unstable connections #191
Description
On unstable connections, the token refresh can sometimes fail which can results in unauthenticated clients.
To be able to handle these situations, the client should:
- set a default timeout for auth connections. We used 5s in the python client, this should be plenty
- make sure that the refresh happens early enough to still be authenticated if it fails. In the python client we refresh 30s before the authentication expires.
- catch exceptions about timeouts and immediately retry. Note that I saw timeouts and Connection errors (not sure about the names for them here)
With this we should be able to have 3-4 retries. If this is not enough, the connection is too bad.