CODEWITHSUNDEEP
pythonfirebase
SM79
SM79

Reputation: 1264

Hot to make a PATCH request to Firebase REST API using python (urllib2)?

I am trying to update Firebase entity using PATCH. Here is what I have:

Data:

'foo': {
  'bar': 'baz'
}

Rules:

"foo": {
      ".write": true,
      ".read": true,
      "bar": {
        ".write": true,
        ".read": true,
      }
},

Code:

import urllib
import urllib2

AUTH_SECRET = 'redacted'
BASE_URL = 'redacted'
URL = BASE_URL + '/foo/.json'

values = {'bar' : 'baz3'}
data = urllib.urlencode(values)

request = urllib2.Request(URL + '?auth=' + AUTH_SECRET, data)
request.get_method = lambda: 'PATCH'
resp = urllib2.urlopen(request)

print resp.read()

I am getting "HTTP Error 400: Bad Request".

Upvotes: 1

Views: 3094

Answers (2)

MaxNoe
MaxNoe

Reputation: 14997

Why use urllib to build the URL with the params? You can just give them as dict to requests.

Upvotes: 1

polart
polart

Reputation: 541

You can wrap the code for sending requests in try/except and then read what is sent back as a content in case of an error, like this:

from urllib2 import HTTPError
try:
    resp = urllib2.urlopen(request)
except HTTPError as e:
    print e.read()

I ran your code and that's what I received:

{
  "error" : "Invalid data; couldn't parse JSON object. Are you sending a JSON object with valid key names?"
}

So Firebase expects you to send data in JSON while you sending it like a URL query string 'bar=baz3'. Thus serializing the data into a JSON formated string would fix the error:

import json
values = {'bar': 'baz3'}
data = json.dumps(values)

Also I would recommend you to use Requests library, since it's much nicer to use.

First of all install Requests:

pip install requests

And then you could do it like this:

import urllib
import requests


AUTH_SECRET = 'redacted'
BASE_URL = 'redacted'

get_params = urllib.urlencode({'auth': AUTH_SECRET})
url = BASE_URL + '/foo/.json' + '?' + get_params
data = {'bar': 'baz3'}

resp = requests.patch(url, json=data)
print resp.json()

Upvotes: 2

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