Method fetch_token

authlib/oauth2/client.py:185–248

Generic method for fetching an access token from the token endpoint. :param url: Access Token endpoint URL, if not configured, ``authorization_response`` is used to extract token from its fragment (implicit way). :param body: Optional applicat

(
        self,
        url=None,
        body="",
        method="POST",
        headers=None,
        auth=None,
        grant_type=None,
        state=None,
        **kwargs,
    )

        return uri, state

    def fetch_token(
        self,
        url=None,
        body="",
        method="POST",
        headers=None,
        auth=None,
        grant_type=None,
        state=None,
        **kwargs,
    ):
        """Generic method for fetching an access token from the token endpoint.

        :param url: Access Token endpoint URL, if not configured,
                    ``authorization_response`` is used to extract token from
                    its fragment (implicit way).
        :param body: Optional application/x-www-form-urlencoded body to add the
                     include in the token request. Prefer kwargs over body.
        :param method: The HTTP method used to make the request. Defaults
                       to POST, but may also be GET. Other methods should
                       be added as needed.
        :param headers: Dict to default request headers with.
        :param auth: An auth tuple or method as accepted by requests.
        :param grant_type: Use specified grant_type to fetch token.
        :param state: Optional "state" value to fetch token.
        :return: A :class:`OAuth2Token` object (a dict too).
        """
        state = state or self.state
        # implicit  grant_type
        authorization_response = kwargs.pop("authorization_response", None)
        if authorization_response and "#" in authorization_response:
            return self.token_from_fragment(authorization_response, state)

        session_kwargs = self._extract_session_request_params(kwargs)

        if authorization_response and "code=" in authorization_response:
            grant_type = "authorization_code"
            params = parse_authorization_code_response(
                authorization_response,
                state=state,
            )
            kwargs["code"] = params["code"]

        if grant_type is None:
            grant_type = self.metadata.get("grant_type")

        if grant_type is None:
            grant_type = _guess_grant_type(kwargs)
            self.metadata["grant_type"] = grant_type

        body = self._prepare_token_endpoint_body(body, grant_type, **kwargs)

        if auth is None:
            auth = self.client_auth(self.token_endpoint_auth_method)

        if headers is None:
            headers = DEFAULT_HEADERS