CkPython

Firebase JWT User Authentication

See more Firebase Examples

Demonstrates how to authenticate a Firebase REST API call using a JSON service account private key. CkPython

import sys
import chilkat

success = False

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# First load the Firebase JSON private key into a string.
fac = chilkat.CkFileAccess()
jsonKey = fac.readEntireTextFile("qa_data/firebase/fish-8abda-firebase-adminsdk-1ys3o-347d70d581.json","utf-8")
if (fac.get_LastMethodSuccess() != True):
    print(fac.lastErrorText())
    sys.exit()

# A JSON private key looks like this:

# {
#   "type": "service_account",
#   "project_id": "fish-8abda",
#   "private_key_id": "347e70d5810b92516905d2de12d292c16159375b",
#   "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvwIBADANBgkqhkiG9 ...  KQRtMB1gBu3KQxgoA==\n-----END PRIVATE KEY-----\n",
#   "client_email": "firebase-adminsdk-1ys3o@fish-8abda.iam.gserviceaccount.com",
#   "client_id": "107827947504591332107",
#   "auth_uri": "https://accounts.google.com/o/oauth2/auth",
#   "token_uri": "https://accounts.google.com/o/oauth2/token",
#   "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
#   "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/firebase-adminsdk-1ys3o%40fish-8abda.iam.gserviceaccount.com"
# }

gAuth = chilkat.CkAuthGoogle()
gAuth.put_JsonKey(jsonKey)

# Choose a scope.
# The scope could be "https://www.googleapis.com/auth/firebase.database"
# or
# "https://www.googleapis.com/auth/firebase.database https://www.googleapis.com/auth/userinfo.email"

gAuth.put_Scope("https://www.googleapis.com/auth/firebase.database https://www.googleapis.com/auth/userinfo.email")

# Request an access token that is valid for this many seconds.
gAuth.put_ExpireNumSeconds(3600)

# If the application is requesting delegated access:
# The email address of the user for which the application is requesting delegated access,
# then set the email address here. (Otherwise leave it empty.)
gAuth.put_SubEmailAddress("")

# Connect to www.googleapis.com using TLS (TLS 1.2 is the default.)
# The Chilkat socket object is used so that the connection can be established
# through proxies or an SSH tunnel if desired.
tlsSock = chilkat.CkSocket()
success = tlsSock.Connect("www.googleapis.com",443,True,5000)
if (success != True):
    print(tlsSock.lastErrorText())
    sys.exit()

# Send the request to obtain the access token.
success = gAuth.ObtainAccessToken(tlsSock)
if (success != True):
    print(gAuth.lastErrorText())
    sys.exit()

# Examine the access token:
print("Firebase Access Token: " + gAuth.accessToken())

# Save the token to a file (or wherever desired).  This token is valid for 1 hour.
fac.WriteEntireTextFile("qa_data/tokens/firebaseToken.txt",gAuth.accessToken(),"utf-8",False)