OAUTH authentication to connect to exchange server

[Abhi-1504]

I have an app that is fetching emails from a mailbox using basic authentication and the url being used is outlook.office365.com. We want to move it to OAUTH authentication and followed the steps described in this documentation to generate the secret keys needed to authenticate. I am getting Invalid Credentials issue while trying to create Account object. Kindly let me know if I am missing something or any extra steps needed. PFB the code snippet used currently with basic auth and code I am trying to use. Kindly let me know if any further information is needed.

Basic Auth Code:

    credentials             = Credentials(
                username    = emailid,
                password    = emailpass
    )

    config                  = Configuration(server='outlook.office365.com', credentials=credentials)

    outlook                 = Account(
        primary_smtp_address= emailid,
        config              = config,
        autodiscover        = False,
        access_type         = DELEGATE
    )
except Exception as e:
    deploy_logger.error("Coudn't connect Email server, erorr - {0}".format(e))
    pid_close(pid_file,pid)
    quit()

Code with OAUTH:

from exchangelib.credentials import OAuth2Credentials


credentials = OAuth2Credentials(client_id='XXX', client_secret='XXX', tenant_id='XXX')


config = Configuration(
    credentials=credentials,
    service_endpoint='https://outlook.office365.com/EWS/Exchange.asmx',
    auth_type=OAUTH2
)
account = Account(
    primary_smtp_address='target_mailbox@example.com',
    config=config,
    autodiscover=False,
    access_type=DELEGATE)

[Abhi-1504]

@ecederstrand any insights on this, what I could be possibly doing wrong.

[ecederstrand]

Just to clarify, EWS is deprecated and does not receive new development, but will not be removed anytime soon.

[ALutchko]

What do they expect us to use instead?

[ecederstrand]

The successor to EWS is the Graph API.

[ALutchko]

Thank you. Could you suggest any python library for that?

[Abhi-1504]

I am using raw http request only to authenticate and fetch data.