First call to GraphQL service slower than subsequent calls after server start

[debmitra]

We are using DGS GraphQL with Spring Boot in our application. We observed that the first call to GraphQL service takes longer to execute than the subsequent calls after the server is started. We are trying to reduce the execution time for the first call.

We have been advised to make a "warmup" call just after the server starts as a workaround. However, I could not find any information on how to do this for DGS-based GraphQL services in the DGS documentation.

Can you please advise how to make this "warmup" call for DGS-based GraphQL services with Spring Boot? Also, please let me know if there is a better way to address this issue.