Explore service interoperability using gRPC in this 18-minute conference talk by Varun Gupta and Tuhin Kanti Sharma from Salesforce. Discover the need for standardization in service-to-service communication and learn about Salesforce's solution implemented across polyglot systems. Gain insights into the implementation of a Last Known Good [Artifact] service framework using gRPC. Understand how Java Spring Boot is utilized to create a gRPC call framework integrated with Salesforce's standard authentication protocol. Delve into the speakers' future plans for incorporating reactive streams into their Java-based gRPC service.