Receiving inputs in a service
We have learned that a service is implemented using an instance method of the same name. It takes two arguments, self and data, passed to the service. In Python, data can be either a string for a STRING typed buffer, bytes for a CARRAY typed buffer, or a dictionary for an FML32 typed buffer. In addition to these two positional arguments, several named arguments can be received as well, with the most important being the following:
name: This is the name of the service that was called. There is not much use for this in Python (unlike C), but it can be used to get the current service name without inspecting the Python function name.flags: May contain0orTPTRANandTPNOREPLYflags.TPTRANindicates that the service is called within a transaction.TPNOREPLYindicates that the client is not expecting a response.
If you want to examine all arguments a service receives, you can update the previous example with the following code:
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