share session between two different version of playFrameWork

Question

Currently two services each running different version of play

they both share same Secret Key as well as same session domain

Play Version 2.2.6:

example of cookie Value:

b14219d56033ca9aa888a406b31872f5623b892f-myKey=myValue

Play Version 2.6.7

example of cookie Value:

eyJhbGciOiJIUzI1NiJ9.eyJkYXRhIjp7Imhhc2hlZE1haWwiOiIwN2Q3YzMwODFhYzk0NTljZTcxYmNhMzhhZjdiNjM5MSJ9LCJuYmYiOjE1MTkyMTI1ODMsImlhdCI6MTUxOTIxMjU4M30.eLJr0uQxo3CxSYewHcGbvSZh0IoFybolYa1gdawalyg

So I have a multiple part question:

1. why are the way sessions stored are different? in earlier version I can see each of the key&values whereas the new version is encoded.
2. are session mechanism compatible (i.e. how can I use session values between them?)

Answer 1

In play 2.6, play's session support was updated to use JWT. You can fallback to the legacy session mode in the configuration. For more information see the migration documentation

This should enable your applications to access each other data