[SOLVED] VOLTTRON RPC call to agent from outside VOLTTRON

VOLTTRON RPC call to agent from outside VOLTTRON

Can you call an RPC endpoint from outside VOLTTRON? If so what all entails the authentication to call a VOLTTRON agent RPC endpoint?

For example I created an agent with the agent creation wizard that includes an RPC endpoint method like this when the wizard tool generates the agent:

@RPC.export
def rpc_method(self, arg1, arg2, kwarg1=None, kwarg2=None):
    """
    RPC method
    May be called from another agent via self.core.rpc.call
    """
    return self.setting1 + arg1 - arg2

Here's another SO post about how to use RPC but I think this RPC calls within the framework itself and not an RPC call from outside: How to use RPC with Volttron

Is there any RPC testing tools like REST API testing tools or python packages I could use? Would I need to a 'vctl auth add' for authentication for outside of VOLTTRON?

Solution

In order to call from outside volttron there has to be an agent connection established in order to use the rpc functionality. A good example of this is the examples/StandaloneListener. Once the connection is established to a volttron then you can call rpc functions allowed.