GET request in Python
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GET request in Python
Hi,
I am successfully transferring my sensor data which is collected from Raspberry pi to Thingworx using REST API in Python
i.e..
import RPi.GPIO as GPIO
import time
import requests
import json
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD)
headers = { 'Content-Type': 'application/json', 'appKey': '8c6083ab-8d01-4116-8775-c672cf79147b' }
TRIG=11
ECHO=12
GPIO.setup(TRIG,GPIO.OUT)
GPIO.output(TRIG,0)
GPIO.setup(ECHO,GPIO.IN)
time.sleep(0.1)
while True:
GPIO.output(TRIG,1)
time.sleep(0.00001)
GPIO.output(TRIG,0)
while GPIO.input(ECHO)==0:
pass
start=time.time()
while GPIO.input(ECHO)==1:
pass
stop=time.time()
c=(stop-start)*17000
print c
payload = { 'Distance' : c}
response = requests.put('http://192.168.100.5:80/Thingworx/Things/ultrasonicsensor/Properties/Distance', headers=headers, json=payload, verify=False)
time.sleep(0.5)
But Now i want to control my LED which is connected to Raspberry pi from Thingworx,,so i used GET resuest.
but i am getting the result in the form of HTML. can u please suggest me , how do i parse the HTML format to Required Property value!!
i.e.
import RPi.GPIO as GPIO
import time
from time import sleep
import requests
import json
GPIO.setwarnings(False)
headers = { 'Content-Type': 'application/json', 'appKey': '8c6083ab-8d01-4116-8775-c672cf79147b' }
GPIO.setmode(GPIO.BOARD)
LED=15
GPIO.setup(LED,GPIO.OUT)
payload = { 'cont' : 'cont'}
getreq = requests.get('http://192.168.100.5:80/Thingworx/Things/GET1/Properties/cont',headers=headers,verify=False)
s=getreq.text
print s
if s==1:
GPIO.output(LED,1)
time.sleep(5)
else:
GPIO.output(LED,0)
#time.sleep(0.5)
So, if i run this code i am getting output as:
<HTML><HEAD><TITLE>Property Value For GET1 : cont</TITLE><LINK rel='Stylesheet' href='/Thingworx/css/thingworxapi.css' type='text/css'></LINK><META http-equiv='Content-Type' content='text/html'></META><META http-equiv='cache-control' content='no-cache, no-store'></META><META http-equiv='expires' content='-1'></META><META http-equiv='pragma' content='no-cache, no-store'></META></HEAD><BODY><IMG SRC="/Thingworx/images/ThingworxLogo.png"/><BR/><H1>Property Value For GET1 : cont</H1><TABLE><TR><TH>cont</TH></TR><TR><TD>1.0</TD></TR></TABLE></BODY></HTML>
Here "<TD>1.0</TD>" showing the data. i need to Parse the "1.0" and use that value to Trigger my raspberry pi to do further actions.
i attached a image of my Thing created in Thingworx.
please suggest me. how to use that data coming from Thingworx to Trigger my raspberrypi.
Thank you
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Add header 'Accept': 'application/json'. Then you'll get the return output in JSON, which should be easier to handle than HTML.
See also https://community.thingworx.com/docs/DOC-3315 → Get Single Property Value
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Here's how to parse the value from the output:
import json
import requests
url = 'http://192.168.100.5:80/Thingworx/Things/GET1/Properties/cont'
headers = {'appKey': '8c6083ab-8d01-4116-8775-c672cf79147b',
'Accept': 'application/json'}
getreq = requests.get(url, headers=headers).json()
s = getreq["rows"][0]["cont"]
print(s)
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Its worked.Thank you so much