Discontinuing support for JSON-RPC and global HTTP batch endpoints- Google Developers Blog

This post announces the discontinuation of support for JSON-RPC and global HTTP batch endpoints for Google APIs. It advises developers to migrate to gRPC for new integrations and to utilize the client libraries for existing integrations. The deprecation is scheduled to take effect on July 13, 2021, with a grace period for migration. This change aims to streamline API access and promote the use of more performant and feature-rich communication protocols.