ESP32 --Throw a trigger on IFTTT-Webhooks in MicroPython

Introduction

ESP32 --Describes how to request IFTTT-Webhooks using MicroPython.

• IFTTT introduction and setting procedure are omitted.

Development environment

The following is the confirmed environment.

--Host PC

• windows10 64bit Home
• VSCode - 1.41.1
  • Pymakr 1.1.5
• NodeJS - 12.14.1 LTS --Target
  • MicroPython v1.12 on 2019-12-20; ESP32 module with ESP32

equipment

code

The code that has been confirmed to work is as follows.

ファイル名：sample_ifttt.py

import urequests as requests
import time

SSID = "xxxxxxxxx"  #Access point SSID
PASSWORD = "xxxxxxxxx" #Access point password
MY_KEY = "xxxxxxxxx" #IFTTT - webhooks -Specify token
EVENT_ID = "xxxxxxxxx" #Specify the event name of the registered webhooks

def do_connect():

    import network
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print('connecting to network...')
        wlan.connect(SSID, PASSWORD)
        while not wlan.isconnected():
            pass
            time.sleep(1)
    print('network config:', wlan.ifconfig())



# IFTTT_Webhook
def ifttt_webhook(eventid):

    #Information to put on value
    payload = "value1="
    payload += "dummy1"
    payload += "&value2="
    payload += "dummy2"
    payload += "&value3="
    payload += "dummy3"

    url = "http://maker.ifttt.com/trigger/" + eventid + "/with/key/" + MY_KEY

    response = requests.post(url, headers={"Content-Type": "application/x-www-form-urlencoded"}, data=payload)
    #If you do not need to specify the value, click ↓ to ok
    # response = requests.post(url)

    response.close()

#Connect to wifi
do_connect()

# ifttt-Trigger to webhooks
ifttt_webhook(EVENT_ID)

Execution method

>>> import sample_ifttt

→ Confirm that the event specified in the code is called

Note

About specification of value

This was the most addictive.

Previously, I wrote the code to make a request to IFTTT in Python 3.7 as follows. ..

import requests

def ifttt_webhook(eventid, values):
    payload = {"value1": "",
                "value2": "",
                "value3": "" }
    payload["value1"] = values[0]
    payload["value2"] = values[1]
    payload["value3"] = values[2]

    url = "https://maker.ifttt.com/trigger/" + eventid + "/with/key/" + my_key
    print(url)
    response = requests.post(url, data=payload)

If you write this as it is in MicroPython, it will not cause an error, but the value will not be applied.

When I checked the code of urequests, I felt that it would be useless if I did not specify it with json.

So, I specified json, but in urequests, the header is passed in fixed characters, "Content-Type: application/x-www-form-urlencoded" I found that it didn't work.

So, specify headers and data respectively, I applied it to value.

The site that I used as a reference

• github - urequests