What is the function in Apex?

Invocation of these functions can be performed in two distinct modes: synchronously or asynchronously. The choice between these modes depends on the specific requirements and constraints of the use case.

If a function takes longer than 2 minutes to return a response, the synchronous invocation request will timeout. This limitation underscores the importance of selecting the appropriate invocation mode based on the expected execution time of the function.

Synchronous invocation involves directly calling the function and waiting for its response. This approach is straightforward but may not be suitable for functions that take a long time to execute.

Alternatively, asynchronous invocation using Apex allows for non-blocking execution of the function. This means that the caller can continue with other tasks while the function is being processed in the background.

The Function class encapsulates a deployed function instance within an organization's framework. This allows for seamless interaction and invocation of the function from within the organizational environment.