Error 'str' object has no attribute 'json' in DestinationQuickbooks check function

Summary

The error ‘str’ object has no attribute ‘json’ is likely due to an issue with handling the response in the DestinationQuickbooks check function. The code snippet provided shows the use of requests.post, but the response object is commented out, which may be causing the error.


Question

I am getting an error "'str' object has no attribute 'json'

for this check function

    def write(
        self, config: Mapping[str, Any], configured_catalog: ConfiguredAirbyteCatalog, input_messages: Iterable[AirbyteMessage]
    ) -> Iterable[AirbyteMessage]:
        pass

    def check(self, logger: AirbyteLogger, config: Mapping[str, Any]) -> AirbyteConnectionStatus:
        try:

            client_id = config['client_id']
            client_secret = config['client_secret']
            refresh_token = config['refresh_token']
            access_token = config['access_token']
            realm_id = config['realm_id']
            
            authorization_base_url = '<https://appcenter.intuit.com/connect/oauth2>'
            token_url = '<https://oauth.platform.intuit.com/oauth2/v1/tokens/bearer>'
            scope = ['com.intuit.quickbooks.accounting']

            credentials = f"{client_id}:{client_secret}"
            base64_credentials = base64.b64encode(credentials.encode()).decode()

            headers = {
                "Accept": "application/json",
                "Authorization": f"Basic {base64_credentials}",
                "Content-Type": "application/x-www-form-urlencoded"
            }

            data = {
                "grant_type": "refresh_token",
                "refresh_token": refresh_token,
            }
            #response = <http://requests.post|requests.post>(token_url, headers=headers, data=data)
                
            return AirbyteConnectionStatus(status=Status.SUCCEEDED)
        except Exception as e:
            return AirbyteConnectionStatus(status=Status.FAILED, message=f"An exception occurred: {repr(e)}")```

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<sub>
["error", "str-object", "attribute-json", "destinationquickbooks", "check-function", "requests-post"]
</sub>

Based on the information provided in the extracts, it seems like you’re trying to make a POST request to refresh the access token, but the actual request line is commented out in your code. However, the error message you’re seeing ("'str' object has no attribute 'json'") typically occurs when you’re trying to use the .json() method on a response object from a request, but the response is not JSON serializable or is not a response object at all. Unfortunately, without the complete code or more context, it’s hard to pinpoint the exact issue. The error might be occurring elsewhere in your code where a response from a request is being handled. Please ensure that the response you’re getting is indeed a response object and that it’s JSON serializable. You can do this by checking the status code of the response and printing out the response text before trying to convert it to JSON. If you’re still having trouble, I would recommend checking out the Airbyte documentation and tutorials for more information on how to handle connections and requests in Airbyte.

<@U04SE163WC8> how should my secrets/config.json file be for this spec file

  "documentationUrl": "<https://docs.airbyte.com/integrations/destinations/quickbooks>",
  "supported_destination_sync_modes": [
    "overwrite", "append"
  ],
  "supportsIncremental": true,
  "connectionSpecification": {
    "$schema": "<http://json-schema.org/draft-07/schema#>",
    "title": "Destination Quickbooks",
    "type": "object",
    "required": ["credentials", "start_date", "sandbox"],
    "additionalProperties": false,
    "properties": {
      "credentials": {
        "title": "Authorization Method",
        "type": "object",
        "order": 0,
        "oneOf": [
          {
            "type": "object",
            "title": "OAuth2.0",
            "required": [
              "client_id",
              "client_secret",
              "refresh_token",
              "access_token",
              "token_expiry_date",
              "realm_id"
            ],
            "properties": {
              "auth_type": {
                "type": "string",
                "const": "oauth2.0"
              },
              "client_id": {
                "type": "string",
                "title": "Client ID",
                "description": "Identifies which app is making the request. Obtain this value from the Keys tab on the app profile via My Apps on the developer site. There are two versions of this key: development and production."
              },
              "client_secret": {
                "description": " Obtain this value from the Keys tab on the app profile via My Apps on the developer site. There are two versions of this key: development and production.",
                "title": "Client Secret",
                "type": "string",
                "airbyte_secret": true
              },
              "refresh_token": {
                "description": "A token used when refreshing the access token.",
                "title": "Refresh Token",
                "type": "string",
                "airbyte_secret": true
              },
              "access_token": {
                "description": "Access token fot making authenticated requests.",
                "title": "Access Token",
                "type": "string",
                "airbyte_secret": true
              },
              "token_expiry_date": {
                "type": "string",
                "title": "Token Expiry Date",
                "description": "The date-time when the access token should be refreshed.",
                "format": "date-time"
              },
              "realm_id": {
                "description": "Labeled Company ID. The Make API Calls panel is populated with the realm id and the current access token.",
                "title": "Realm ID",
                "type": "string",
                "airbyte_secret": true
              }
            }
          }
        ]
      },
      "start_date": {
        "order": 1,
        "description": "The default value to use if no bookmark exists for an endpoint (rfc3339 date string). E.g, 2021-03-20T00:00:00Z. Any data before this date will not be replicated.",
        "title": "Start Date",
        "type": "string",
        "format": "date-time",
        "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$",
        "examples": ["2021-03-20T00:00:00Z"]
      },
      "sandbox": {
        "order": 2,
        "description": "Determines whether to use the sandbox or production environment.",
        "title": "Sandbox",
        "type": "boolean",
        "default": false
      }
    }
  }
}```

Based on the provided spec file, your secrets/config.json file should look something like this: json { "credentials": { "auth_type": "oauth2.0", "client_id": "&lt;your_client_id&gt;", "client_secret": "&lt;your_client_secret&gt;", "refresh_token": "&lt;your_refresh_token&gt;", "access_token": "&lt;your_access_token&gt;", "token_expiry_date": "&lt;your_token_expiry_date&gt;", "realm_id": "&lt;your_realm_id&gt;" }, "start_date": "&lt;your_start_date&gt;", "sandbox": &lt;true_or_false&gt; } Replace the &lt;your_...&gt; placeholders with your actual values. For the sandbox field, use true if you’re going to replicate the data from the sandbox environment, and false otherwise. Please note that the client_id, client_secret, refresh_token, access_token, and realm_id are sensitive data, so it’s recommended to store this config in the secrets directory because it is ignored by git. For more information on how to obtain these values, you can refer to the QuickBooks Source connector setup guide.

<@U04SE163WC8> is there any connection between the destination.py check function and the spec.yaml file or the secrets/config.json file?

A message from http://kapa.ai|kapa.ai

Yes, there is a connection between the check function in destination.py, the spec.yaml file, and the secrets/config.json file. The check function is used to validate the connection to the destination. It takes a config parameter which is a JSON object that should conform to the schema defined in the spec.yaml file. This config object typically includes the credentials and other necessary parameters required to establish a connection to the destination. The secrets/config.json file is where you store the actual values for these parameters. When you run the check function, you pass in the secrets/config.json file as the config parameter. The function then uses these values to try and establish a connection to the destination. Here’s an example of how the check function might look like: python def check(self, logger: AirbyteLogger, config: Mapping[str, Any]) -&gt; AirbyteConnectionStatus: try: # parse the destination path param_path = config.get("destination_path") path = self._get_destination_path(param_path) os.makedirs(os.path.dirname(path), exist_ok=True) con = duckdb.connect(database=path, read_only=False) con.execute("SELECT 1;") return AirbyteConnectionStatus(status=Status.SUCCEEDED) except Exception as e: return AirbyteConnectionStatus(status=Status.FAILED, message=f"An exception occurred: {repr(e)}") In this example, the config object is expected to have a destination_path property, which is used to establish a connection to the destination. If the connection is successful, the function returns a status of SUCCEEDED. If not, it returns a status of FAILED. For more information, you can refer to the Airbyte documentation on building a Python source and the tutorial on creating a Python destination.

logger = logging.getLogger(“airbyte”)
class Destination(Connector, ABC):
VALID_CMDS = {“spec”, “check”, “write”}

@abstractmethod
def write(
    self, config: Mapping[str, Any], configured_catalog: ConfiguredAirbyteCatalog, input_messages: Iterable[AirbyteMessage]
) -&gt; Iterable[AirbyteMessage]:
    """Implement to define how the connector writes data to the destination"""

def _run_check(self, config: Mapping[str, Any]) -&gt; AirbyteMessage:
    check_result = self.check(logger, config)
    return AirbyteMessage(type=Type.CONNECTION_STATUS, connectionStatus=check_result)

def _parse_input_stream(self, input_stream: io.TextIOWrapper) -&gt; Iterable[AirbyteMessage]:
    """Reads from stdin, converting to Airbyte messages"""
    for line in input_stream:
        try:
            yield AirbyteMessage.parse_raw(line)
        except ValidationError:
            <http://logger.info|logger.info>(f"ignoring input which can't be deserialized as Airbyte Message: {line}")

def _run_write(
    self, config: Mapping[str, Any], configured_catalog_path: str, input_stream: io.TextIOWrapper
) -&gt; Iterable[AirbyteMessage]:
    catalog = ConfiguredAirbyteCatalog.parse_file(configured_catalog_path)
    input_messages = self._parse_input_stream(input_stream)
    <http://logger.info|logger.info>("Begin writing to the destination...")
    yield from self.write(config=config, configured_catalog=catalog, input_messages=input_messages)
    <http://logger.info|logger.info>("Writing complete.")

def parse_args(self, args: List[str]) -&gt; argparse.Namespace:
    """
    :param args: commandline arguments
    :return:
    """

    parent_parser = argparse.ArgumentParser(add_help=False)
    main_parser = argparse.ArgumentParser()
    subparsers = main_parser.add_subparsers(title="commands", dest="command")

    # spec
    subparsers.add_parser("spec", help="outputs the json configuration specification", parents=[parent_parser])

    # check
    check_parser = subparsers.add_parser("check", help="checks the config can be used to connect", parents=[parent_parser])
    required_check_parser = check_parser.add_argument_group("required named arguments")
    required_check_parser.add_argument("--config", type=str, required=True, help="path to the json configuration file")

    # write
    write_parser = subparsers.add_parser("write", help="Writes data to the destination", parents=[parent_parser])
    write_required = write_parser.add_argument_group("required named arguments")
    write_required.add_argument("--config", type=str, required=True, help="path to the JSON configuration file")
    write_required.add_argument("--catalog", type=str, required=True, help="path to the configured catalog JSON file")

    parsed_args = main_parser.parse_args(args)
    cmd = parsed_args.command
    if not cmd:
        raise Exception("No command entered. ")
    elif cmd not in ["spec", "check", "write"]:
        # This is technically dead code since parse_args() would fail if this was the case
        # But it's non-obvious enough to warrant placing it here anyways
        raise Exception(f"Unknown command entered: {cmd}")

    return parsed_args

def run_cmd(self, parsed_args: argparse.Namespace) -&gt; Iterable[AirbyteMessage]:

    cmd = parsed_args.command
    if cmd not in self.VALID_CMDS:
        raise Exception(f"Unrecognized command: {cmd}")

    spec = self.spec(logger)
    if cmd == "spec":
        yield AirbyteMessage(type=Type.SPEC, spec=spec)
        return
    config = self.read_config(config_path=parsed_args.config)
    if self.check_config_against_spec or cmd == "check":
        try:
            check_config_against_spec_or_exit(config, spec)
        except AirbyteTracedException as traced_exc:
            connection_status = <http://traced_exc.as|traced_exc.as>_connection_status_message()
            if connection_status and cmd == "check":
                yield connection_status.json(exclude_unset=True)
                return
            raise traced_exc

    if cmd == "check":
        yield self._run_check(config=config)
    elif cmd == "write":
        # Wrap in UTF-8 to override any other input encodings
        wrapped_stdin = io.TextIOWrapper(sys.stdin.buffer, encoding="utf-8")
        yield from self._run_write(config=config, configured_catalog_path=parsed_args.catalog, input_stream=wrapped_stdin)

def run(self, args: List[str]):
    init_uncaught_exception_handler(logger)
    parsed_args = self.parse_args(args)
    output_messages = self.run_cmd(parsed_args)
    for message in output_messages:
        print(message.json(exclude_unset=True))

<@U04SE163WC8> why am I getting this error

{"type": "LOG", "log": {"level": "FATAL", "message": "'str' object has no attribute 'json'\nTraceback (most recent call last):\n  File \"/home/alcadeus/airbyte/airbyte-integrations/connectors/destination-quickbooks/main.py\", line 11, in &lt;module&gt;\n    DestinationQuickbooks().run(sys.argv[1:])\n  File \"/home/alcadeus/airbyte/airbyte-integrations/connectors/destination-quickbooks/.venv/lib/python3.10/site-packages/airbyte_cdk/destinations/destination.py\", line 120, in run\n    print(message.json(exclude_unset=True))\nAttributeError: 'str' object has no attribute 'json'"}}
{"type": "TRACE", "trace": {"type": "ERROR", "emitted_at": 1705378014454.0042, "error": {"message": "Something went wrong in the connector. See the logs for more details.", "internal_message": "'str' object has no attribute 'json'", "stack_trace": "Traceback (most recent call last):\n  File \"/home/alcadeus/airbyte/airbyte-integrations/connectors/destination-quickbooks/main.py\", line 11, in &lt;module&gt;\n    DestinationQuickbooks().run(sys.argv[1:])\n  File \"/home/alcadeus/airbyte/airbyte-integrations/connectors/destination-quickbooks/.venv/lib/python3.10/site-packages/airbyte_cdk/destinations/destination.py\", line 120, in run\n    print(message.json(exclude_unset=True))\nAttributeError: 'str' object has no attribute 'json'\n", "failure_type": "system_error"}}}```

The error message you’re seeing is a Python AttributeError, which is raised when you try to access an attribute or method on an object that doesn’t have it. In this case, it’s trying to call the json method on a string object, which doesn’t exist. The error is happening in this line of code: python print(message.json(exclude_unset=True)) Here, message is expected to be an instance of a class that has a json method, but it’s actually a string. This could be due to a variety of reasons, but it’s likely that there’s a problem with the way the message object is being created or assigned. It’s possible that a function or method is returning a string when it should be returning an instance of a different class. To fix this error, you’ll need to identify where message is coming from and ensure that it’s the correct type of object. If message is the result of a function or method call, check the implementation of that function or method to make sure it’s returning the correct type of object. If you’re still having trouble, you might find it helpful to add some debugging output to your code to print out the type of message before this line of code is executed. This could help you track down where the incorrect value is coming from. For more information, you can refer to the Python documentation on exceptions and the Airbyte documentation on building a Python destination.

<@U04SE163WC8> is it calling because of my check function?

    def write(
        self, config: Mapping[str, Any], configured_catalog: ConfiguredAirbyteCatalog, input_messages: Iterable[AirbyteMessage]
    ) -&gt; Iterable[AirbyteMessage]:
        pass

    def check(self, logger: AirbyteLogger, config: Mapping[str, Any]) -&gt; AirbyteConnectionStatus:
        try:

            client_id = config['client_id']
            client_secret = config['client_secret']
            refresh_token = config['refresh_token']
            access_token = config['access_token']
            realm_id = config['realm_id']
            
            auth_client = AuthClient(
            client_id=client_id,
            client_secret=client_secret,
            access_token=access_token,  # If you do not pass this in, the Quickbooks client will call refresh and get a new access token. 
            environment='sandbox',
            redirect_uri='<http://localhost:8000/callback>',
    )
            
            client = QuickBooks(
            auth_client=auth_client,
            refresh_token=refresh_token,
            company_id=realm_id,
    )

            customers = Customer.all(qb=client)
            print(customers)


            return AirbyteConnectionStatus(status=Status.SUCCEEDED)
        except Exception as e:
            return AirbyteConnectionStatus(status=Status.FAILED, message=f"An exception occurred: {repr(e)}")```

Sorry <@U047WETGHFW>, I seem to be having a bit of trouble. Don’t worry though, I’ve pinged my support folks and they will try to fix me up! :technologist:

Perhaps try again in 5mins?