Pushbullet API Send SMS in groovy

sendSms.groovy

@Grab("com.squareup.okhttp3:okhttp:3.9.0")

import okhttp3.MediaType
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody
import okhttp3.Response
import groovy.json.JsonOutput

String PUSHBULLET_ACCESS_TOKEN = "ACCESSTOKEN"
MediaType JSON = MediaType.parse("application/json; charset=utf-8");
OkHttpClient client = new OkHttpClient()

// Find user iden by curling me: curl --header 'Access-Token: <your_access_token_here>' https://api.pushbullet.com/v2/users/me
String USER_IDEN = "<user-iden>"
// Find device iden by listing your devices: curl --header 'Access-Token: <your_access_token_here>' https://api.pushbullet.com/v2/devices
String DEVICE_IDEN = "<device-iden>"

String phoneNumber = "00000"
String message = "This is the message"

def body = [
    push: [
        message: message,
        "conversation_iden": phoneNumber,
        "target_device_iden": DEVICE_IDEN,
        "source_user_iden": USER_IDEN,
        "package_name": "com.pushbullet.android",
        type: "messaging_extension_reply"
    ],
    type: "push"
]

def requestBody = RequestBody.create(JSON, JsonOutput.toJson(body));
Request request = new Request.Builder()
        .url("https://api.pushbullet.com/v2/ephemerals")
        .post(requestBody)
        .header("Access-Token", PUSHBULLET_ACCESS_TOKEN)
        .build()

def response = client.newCall(request).execute()
response.body().close()