(CkPython) Rabobank OAuth2 Access Token

Demonstrates how to get an OAuth 2.0 access token to access Rabobank API's

Important: This example is for desktop apps only. (It is not for web-based applications.)

Your app defined in the Rabobank portal should look something like this. (Our test app is named "chilkat". You should name your app something else.)

Note: This example requires Chilkat v10.1.2 or greater.

For more information, see https://developer-sandbox.rabobank.nl/implementoauth2

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux

import sys
import chilkat

# For more information about the OAuth2, see OAuth 2.0 Authorization Flow

oauth2 = chilkat.CkOAuth2()

# This should be the port in the localhost callback URL for your app.  
# The callback URL would look like "http://localhost:3017/" if the port number is 3017.
oauth2.put_ListenPort(3017)

# IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.
# IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.
# IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.
# IMPORTANT: Don't forget to subscribe your Rabobank application to the OAuth 2.0 services in the Rabobank Online Developer Portal.

# See also https://developer.rabobank.nl/faq

oauth2.put_AuthorizationEndpoint("https://api-sandbox.rabobank.nl/openapi/sandbox/oauth2/authorize")
oauth2.put_TokenEndpoint("https://api-sandbox.rabobank.nl/openapi/sandbox/oauth2/token")

# Replace these with actual values.
oauth2.put_ClientId("YOUR_APP_CLIENT_ID")
# This is your app password:
oauth2.put_ClientSecret("YOUR_APP_CLIENT_SECRET")

oauth2.put_CodeChallenge(False)
# Provide a SPACE separated list of scopes, as defined in the Rabobank API documentation, 
# such as at https://developer-sandbox.rabobank.nl/reference/accounts-ais-sb/3-0-8

# Important: To get a refresh token in the final response, you have to ask for "offline_access" scope
oauth2.put_Scope("ais.balances.read ais.transactions.read-90days ais.transactions.read-history")

# Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
url = oauth2.startAuth()
if (oauth2.get_LastMethodSuccess() != True):
    print(oauth2.lastErrorText())
    sys.exit()

print("url = " + url)

# Launch the default browser on the system and navigate to the url.
# The LaunchBrowser method was added in Chilkat v10.1.2.
success = oauth2.LaunchBrowser(url)
if (success == False):
    print(oauth2.lastErrorText())
    sys.exit()

# Wait for the user to approve or deny authorization in the browser.
numMsWaited = 0
while (numMsWaited < 90000) and (oauth2.get_AuthFlowState() < 3) :
    oauth2.SleepMs(100)
    numMsWaited = numMsWaited + 100

# If the browser does not respond within the specified time, AuthFlowState will be:
# 
# 1: Waiting for Redirect - The OAuth2 background thread is waiting for the browser's redirect request.
# 2: Waiting for Final Response - The thread is awaiting the final access token response.
# In either case, cancel the background task initiated by StartAuth.

if (oauth2.get_AuthFlowState() < 3):
    oauth2.Cancel()
    print("No response from the browser!")
    sys.exit()

# Check AuthFlowState to determine if authorization was granted, denied, or failed:
# 
# 3: Success - OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
# 4: Access Denied - OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
# 5: Failure - OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

if (oauth2.get_AuthFlowState() == 5):
    print("OAuth2 failed to complete.")
    print(oauth2.failureInfo())
    sys.exit()

if (oauth2.get_AuthFlowState() == 4):
    print("OAuth2 authorization was denied.")
    print(oauth2.accessTokenResponse())
    sys.exit()

if (oauth2.get_AuthFlowState() != 3):
    print("Unexpected AuthFlowState:" + str(oauth2.get_AuthFlowState()))
    sys.exit()

print("OAuth2 authorization granted!")
print("Access Token = " + oauth2.accessToken())

# Get the full JSON response:
json = chilkat.CkJsonObject()
json.Load(oauth2.accessTokenResponse())
json.put_EmitCompact(False)

# The JSON response looks like this:

# {
#   "token_type": "Bearer",
#   "access_token": "AAIkYTU0ZWM ... sxE0KL0HHWw",
#   "expires_in": 3600,
#   "consented_on": 1584641121,
#   "scope": "ais.balances.read ais.transactions.read-90days ais.transactions.read-history",
#   "refresh_token": "AAJXXSdN ... Uiblz9ILkxNBlytRGA",
#   "refresh_token_expires_in": 157784760,
#   "expires_on": "1584644722"
# }

print(json.emit())

# Save the JSON to a file to be used in future requests.
fac = chilkat.CkFileAccess()
fac.WriteEntireTextFile("qa_data/tokens/rabobank.json",json.emit(),"utf-8",False)