Raspberry Pi + Apache + Google Cloud Vision API + Slack API 사용하기

목적

전체상

동작 확인

아파치

sudo chmod 777 /var/www/html

파이썬

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import os
import io
from time import sleep
from datetime import datetime
import subprocess
import requests
import json
from google.cloud import vision
from google.cloud.vision import types

def exec_cmd(cmd):
    #r = subprocess.check_output(cmd, shell=True)
    #return r.decode('utf-8').strip()
    subprocess.call(cmd, shell=True)

def take_photo():
    #now = datetime.now()
    #f = now.strftime('%Y-%m-%d_%H-%M-%S') + '.jpg'
    f = 'test.jpg'
    exec_cmd('fswebcam ' + f)

def get_label(file_name):
    #key_path = '/home/pi/*/yourkey.json'
    #os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = key_path

    client = vision.ImageAnnotatorClient()

    with io.open(file_name, 'rb') as image_file:
        content = image_file.read()

    image = types.Image(content=content)
    response = client.label_detection(image=image)
    labels = response.label_annotations
    d = labels[0].description
    s = labels[0].score
    text = 'label: ' + d + ' score: ' + '{:.2f}'.format(s)
    return text

def send_slack(text):
    WEB_HOOK_URL = 'https://hooks.slack.com/services/xxx'
    requests.post(WEB_HOOK_URL, data = json.dumps({
        'text': text,
        }))

if __name__ == '__main__':
    take_photo()
    txt = get_label('test.jpg')
    send_slack(txt)

쉘 스크립트

sleep 3
python3 test.py
cp test.jpg /var/www/html/