Hi DAMLers,
In Part 1 , @nycnewman described how to set up a PKI infrastructure and configure the DAML Ledger Server to use secure TLS connections and mutual authentication. This protects data in transit and only authorised clients can connect.
For this Second part, he focused on authentication and authorization of Ledger API calls using JWT tokens and customs claims.
Check it out 
Any questions to @nycnewman?