The LeanEngine Objective-C Sample Code demonstrates how to switch environments in the production and staging phases. When calling cloud functions within LeanEngine instances using SDK, no matter explicitly or implicitly (by triggering hooks), the SDK uses the function defined in the same environment as the instance.
Hasura, a data access infrastructure company, recently introduced Hasura Cloud. Hasura Cloud provides secure and instant access to data across hybrid and multi-cloud environments. It uses the unified GraphQL API to achieve this cross-cloud capability. Hasura uses an API and security first model.