# README

EdgeX Foundry Core Command Service

Command Service is the conduit for other services to trigger action on devices/sensors via there managing device services. The service provides an API to get the list of commands that can be issued for all devices or a single device. Commands are divided into to groups for each device: Gets and Puts. Get commands are issued to a device/sensor get a current value for a particular attribute on the device (like the current temperature offered by a thermostat sensor, or like the on/off status of a light). Put commands are issued to a device/sensor to change the current state or status of a device or one of its attributes (like setting the speed in RPMs of a motor or setting the brightness of a dimmer light).

Install and Deploy Native

Prerequisites

Serveral EdgeX Foundry services depend on ZeroMQ for communications by default. The easiest way to get and install ZeroMQ is to use or follow the following setup script: https://gist.github.com/katopz/8b766a5cb0ca96c816658e9407e83d00.

Note: Setup of the ZeroMQ library is not supported on Windows plaforms.

Installation and Execution

To fetch the code and build the microservice execute the following:

cd $GOPATH/src
go get github.com/Circutor/edgex
cd $GOPATH/src/github.com/Circutor/edgex
# pull the 3rd party / vendor packages
make prepare
# build the microservice
make cmd/core-command/core-command
# get to the command microservice executable
cd cmd/core-command
# run the microservice (may require other dependent services to run correctly)
./core-command