Common Expression Language (CEL) introduction
The Common Expression Language (CEL) uses a simple syntax similar to expressions in C++, Java, JavaScript, and Go. CEL expressions are usually concise, single-line statements that evaluate to a single value. If the evaluation result is true, the system triggers a notification to the specified integration. If the evaluation result is false, the system takes no action.
Inputs to a CEL expression are called
variables. Each field within the event can be a variable in the CEL expression. CEL comes with standard language functions as defined in the
official specification.