Closed
Description
example for magtag of reading 'large' json files and parsing them
code.py output:
Connecting to AP adafruit
Reading data
Took 1.380859 seconds to get response
Took 40.878906 seconds to parse
Thoughts 5
import time
import random
from adafruit_magtag.magtag import MagTag
# Set up where we'll be fetching data from
DATA_SOURCE = "https://www.reddit.com/r/Showerthoughts/top.json?limit=5"
magtag = MagTag()
magtag.network.connect()
# thought in bold text, with text wrapping
magtag.add_text(
text_font="Arial-Bold-12.bdf",
text_wrap=33,
text_maxlen=160,
text_position=(10, 10),
text_anchor_point=(0, 0),
line_spacing=0.75,
)
timestamp = None
while True:
if not timestamp or (time.monotonic() - timestamp) > 5: # once every 60 seconds...
try:
print("Reading data")
t = time.monotonic()
response = magtag.network.requests.get(DATA_SOURCE)
print("Took %f seconds to get response" % (time.monotonic() - t))
t = time.monotonic()
value = response.json()
print("Took %f seconds to parse" % (time.monotonic() - t))
thoughts = value["data"]["dist"]
print("Thoughts", thoughts)
randthought = random.randint(0, thoughts-1)
thought = value["data"]["children"][randthought]["data"]["title"]
author = value["data"]["children"][randthought]["data"]["author"]
print("Random thought from", author, ":", thought)
magtag.set_text(thought)
except (ValueError, RuntimeError) as e:
print("Some error occured, retrying! -", e)
timestamp = time.monotonic()