Python：requests.post不发布

Question

I'm trying to post a json string to Google Firebase.

The same command works without hickups using curl, but if I do that using Python, there's no data in the DB.

Here's the code:

postdata = {"pm10": pm10, "pm2.5": pm25, "lat": gps_data.get('latitude'), "lon": gps_data.get('longitude'), "alt": gps_data.get('speed'), "spd": gps_data.get('altitude2'), "satt": gps_data.get('satellites')}

logging.info(args.url)
logging.info(postdata)


r = requests.post(args.url, data=postdata, headers={'content-type': 'application/json'})

logging.debug(r)

I call the script using:

python l.py -u http://blabla.firebaseio.com/test1.json

The output is:

INFO:Serial device initialized
INFO:Posting to http://blabla.firebaseio.com/test1.json
INFO:http://blabla.firebaseio.com/test1.json
INFO:{'satt': 10, 'pm10': 30, 'lon': XX.XXXXX, 'pm2.5': 27, 'lat': YY.YYYYY, 'alt': 0.037, 'spd': 336.8}
INFO:PM 10: 30
INFO:PM 2.5: 27
INFO:Latitude: XX.XXXX
INFO:longitude: YY.YYYYY

But when I open the DB, no data.

Using curl with the same parameters works.

Update:

Logging debug provides this as info:

DEBUG:requests.packages.urllib3.connectionpool:Starting new HTTP connection (1): blabla.firebaseio.com
DEBUG:requests.packages.urllib3.connectionpool:http://blabla.firebaseio.com:80 "POST /test1.json HTTP/1.1" 404 1571
DEBUG:root:<Response [404]>

Answer 1

So, turns out the issue was with one of the variables being passed as json contained an invalid char.

The value was pm2.5, so I just renamed it to pm25.

The key is not to have any chars such as . - or something of the sort.

After that it started working.