Help with Particle "DO"(httppost) button device handler for ST

Hello community, I’ve been working on an IoT project to automate feeding of our obnoxious cat in the mornings and when we are out of town. I’m using a particle photon to control a servo attached to a cereal dispenser to dispense the food. The project is 90% complete as I’ve been able to use IFTTT to feed the cat by schedule and by Alexa voice command. However, I want to take this a step further so I can use a “Feed” button in SmartThings and also invoke the action without using the word “Trigger” which IFTTT requires.

Since the command to the particle is a simple HTTP POST, I’m hung up on what capability to be using for this. I’ve tried a number of them and none work. The UI is exactly what I want, just need to get the “do” functionality to work. Any help would be great! Thanks.

 *  Cat Feeder Device Handler for SmartThings
 *  Author: Chris Kulakowski
preferences {
    section("Your Particle credentials and device Id:") {
        input("token", "text", title: "Access Token")
        input("deviceId", "text", title: "Device ID")
// for the UI
metadata {
	definition (name: "Pet Feeder", namespace: "smartthings", author: "Chris Kulakowski") {
		command "feed"
        capability "execute"

    // tile definitions
	tiles {
		standardTile("feeder", "device.execute", width: 3, height: 3, canChangeIcon: true) {
			state "default", label: "Feed", action: "feed", icon: "", backgroundColor: "#ffffff"

		main "feeder"
		details "feeder"

def parse(String description) {
	log.error "This device does not support incoming events"
	return null

def feed() {
	sendToDevice "feed"

private sendToDevice(cmd) {
    // Particle API call to photon device
    // "deviceId" will be replaced with our actual device name
    // feed is the name of our published function exposed by the device
		uri: "${deviceId}/feed",
        body: [access_token: token, command: cmd],  
	) {response -> log.debug (}

I would use capability actuator for this.

There’s already a DTH out therefor this. HTTP button handler.

Ok actuator and switch capabilities work in ST, but its not working in the Alexa app. Alexa thinks its a switch with states “on” and “off”. I just want a button in Alexa just like it shows in SmartThings. Any ideas?

OK, I got it! The work around was basically configuring “on” and “off” to both run the http post… I really dont care about state for this so It didn’t matter. Then I created a routine that triggers it “on” and it works great. Thanks for your help guys.

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