Unable to get token info with WSO2 IS

[amelroua]

I am trying to setup WSO2 IS with a simple flask api. I am trying to use https://gist.github.com/thomasdarimont/145dc9aa857b831ff2eff221b79d179a, however, I get always token invalid with unable to get token info error.

Code:
app.py

` import json
import logging
from flask import Flask, g
from flask_oidc import OpenIDConnect
import requests

logging.basicConfig(level=logging.DEBUG)

app = Flask(name)
app.config.update({
'SECRET_KEY': 'SomethingNotEntirelySecret',
'TESTING': True,
'DEBUG': True,
'OIDC_CLIENT_SECRETS': 'client_secrets.json',
'OIDC_ID_TOKEN_COOKIE_SECURE': False,
'OIDC_REQUIRE_VERIFIED_EMAIL': False,
'OIDC_USER_INFO_ENABLED': True,
'OIDC_OPENID_REALM': 'manager',
'OIDC_SCOPES': ['openid', 'email', 'profile'],
'OIDC_CALLBACK_ROUTE': '/oidc/callback',
'OIDC_INTROSPECTION_AUTH_METHOD': 'client_secret_post',
'OIDC_TOKEN_TYPE_HINT': 'access_token',
'OIDC_CLOCK_SKEW': 560 #iat must be > time.time() - OIDC_CLOCK_SKEW
})

oidc = OpenIDConnect(app)
@app.route('/')
def hello_world():
if oidc.user_loggedin:
return ('Hello, %s, See private '
'Log out') %
oidc.user_getfield('preferred_username')
else:
return 'Welcome anonymous, Log in'

@app.route('/api', methods=['POST'])
@oidc.accept_token(require_token=True)
def hello_api():
"""OAuth 2.0 protected API endpoint accessible via AccessToken"""
return json.dumps({'hello': 'Welcome %s' % g.oidc_token_info['sub']})

@app.route('/logout')
def logout():
"""Performs local logout by removing the session cookie."""
oidc.logout()
return 'Hi, you have been logged out! Return'

if name == 'main':
app.run(debug=True, host='0.0.0.0')`

client_secret.json:

`{
"web": {
"issuer": "https://localhost:9443/oauth2/token",
"auth_uri": "https://localhost:9443/oauth2/authorize",
"client_id": "xxxx",
"client_secret": "xxxx",
"redirect_uris": [
"http://localhost:5000/oidc/callback"
],
"userinfo_uri": "https://localhost:9443/oauth2/userinfo?schema=openid",
"token_uri": "https://localhost:9443/oauth2/token",
"token_introspection_uri": "https://locahost:9443/oauth2/introspect",

   }

}
`

I'm trying to access http://localhost:5000/api with authorization header bearer access token:

The flask error shows ERROR:flask_oidc:ERROR: Unable to get token info
ERROR:flask_oidc:Expecting value: line 1 column 1 (char 0)