82 lines
2.8 KiB
Python
82 lines
2.8 KiB
Python
"""
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Twitter API for PyPortal.
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Adafruit invests time and resources providing this open source code.
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Please support Adafruit and open source hardware by purchasing
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products from Adafruit!
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Written by Dave Astels for Adafruit Industries
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Copyright (c) 2019 Adafruit Industries
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Licensed under the MIT license.
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All text above must be included in any redistribution.
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"""
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#pylint:disable=invalid-name
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import time
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import binascii
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import json
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import board
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from adafruit_pyportal import PyPortal
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import adafruit_esp32spi.adafruit_esp32spi_requests as requests
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username = 'codewisdom'
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try:
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from secrets import secrets
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except ImportError:
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print("""WiFi settings are kept in secrets.py, please add them there!
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the secrets dictionary must contain 'ssid' and 'password' at a minimum""")
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raise
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def halt_and_catch_fire(message, *args):
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"""Log a critical error and stall the system."""
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print(message % args)
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while True:
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pass
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def get_bearer_token():
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"""Get the bearer authentication token from twitter."""
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raw_key = secrets['twitter_api_key'] + ':' + secrets['twitter_secret_key']
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encoded_key = binascii.b2a_base64(bytes(raw_key, 'utf8'))
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string_key = bytes.decode(encoded_key)
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headers = {'Authorization': 'Basic ' + string_key,
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'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8'}
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response = requests.post('https://api.twitter.com/oauth2/token',
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headers=headers,
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data='grant_type=client_credentials')
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response_dict = json.loads(response.content)
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if response_dict['token_type'] != 'bearer':
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halt_and_catch_fire('Wrong token type from twitter: %s', response_dict['token_type'])
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return response_dict['access_token']
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# determine the current working directory
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# needed so we know where to find files
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cwd = ("/"+__file__).rsplit('/', 1)[0]
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url = 'https://api.twitter.com/1.1/statuses/user_timeline.json?count=1&screen_name=' + username
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# Initialize the pyportal object and let us know what data to fetch and where
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# to display it
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pyportal = PyPortal(url=url,
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json_path=(0, 'text'),
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status_neopixel=board.NEOPIXEL,
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default_bg=cwd + '/twitter_background.bmp',
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# external_spi=spi,
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# esp=esp,
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text_font=cwd+'/fonts/Helvetica-Bold-16.bdf',
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text_position=(20, 60),
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text_color=0xFFFFFF,
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text_wrap=35,
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caption_text='@' + username,
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caption_font=cwd+'/fonts/Helvetica-Bold-16.bdf',
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caption_position=(5, 210),
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caption_color=0x808080)
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bearer_token = get_bearer_token()
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pyportal.set_headers({'Authorization': 'Bearer ' + bearer_token})
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while True:
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pyportal.fetch()
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time.sleep(3600) # check every hour
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