feat: Add QuickBooks verified source

mypy.ini

@@ -40,6 +40,12 @@ ignore_missing_imports=true
 [mypy-pyarrow.*]
 ignore_missing_imports=true
 
+[mypy-quickbooks.*]
+ignore_missing_imports=true
+
+[mypy-intuitlib.*]
+ignore_missing_imports=true
+
 [mypy-tests.*]
 disallow_untyped_defs=false
 disallow_any_generics=false

sources/quickbooks_online/README.md

@@ -0,0 +1,59 @@
+# Quickbooks
+
+QuickBooks is a cloud-based accounting software designed for small to medium-sized businesses. This QuickBooks `dlt` verified source and pipeline example offers the capability to load QuickBooks endpoints such as "Customer" to a destination of your choosing. It enables you to conveniently load the following endpoint as a start:
+
+### Single loading endpoints (replace mode)
+
+| Endpoint | Mode | Description |
+| --- | --- | --- |
+| Customer | replace | A customer is a consumer of the service or product that your business offers. An individual customer can have an underlying nested structure, with a parent customer (the top-level object) having zero or more sub-customers and jobs associated with it. |
+
+
+## Initialize the pipeline with Quickbooks verified source
+```bash
+dlt init quickbooks_online duckdb
+```
+
+Here, we chose DuckDB as the destination. Alternatively, you can also choose redshift, snowflake, or any of the other [destinations.](https://dlthub.com/docs/dlt-ecosystem/destinations/)
+
+## Setup verified source and pipeline example
+
+To grab credentials and initialize the verified source, please refer to the [full documentation here.](https://dlthub.com/docs/dlt-ecosystem/verified-sources/salesforce)
+
+## Add credentials
+
+1. Open `.dlt/secrets.toml`.
+2. Put these credentials in, these can be sourced from quickbooks developer portal and quickbooks oauth playground:
+    ```toml
+    # put your secret values and credentials here. do not share this file and do not push it to github
+    [sources.quickbooks_online]
+    environment=""
+    company_id=""
+    client_id=""
+    client_secret=""
+    access_token=""
+    refresh_token=""
+    redirect_uri=""
+    ```
+
+3. Enter credentials for your chosen destination as per the [docs.](https://dlthub.com/docs/dlt-ecosystem/destinations/)
+
+## Run the pipeline example
+
+1. Install the necessary dependencies by running the following command:
+    ```bash
+    pip install -r requirements.txt
+    ```
+
+2. Now the pipeline can be run by using the command:
+    ```bash
+    python3 quickbooks_online_pipeline.py
+    ```
+
+3. To make sure that everything is loaded as expected, use the command:
+    ```bash
+    dlt pipeline <pipeline_name> show
+    ```
+
+    For example, the pipeline_name for the above pipeline is `quickbooks_online`, you may also use any custom name instead.
+

sources/quickbooks_online/__init__.py

@@ -0,0 +1,81 @@
+"""Source for Quickbooks depending on the quickbooks_online-python python package.
+
+Quickbooks-python docs: https://github.com/ej2/python-quickbooks
+Quickbooks api docs: https://developer.intuit.com/app/developer/qbo/docs/api/accounting/all-entities/
+Quickbooks company id: https://quickbooks.intuit.com/learn-support/en-uk/help-article/customer-company-settings/find-quickbooks-online-company-id/L7lp8O9yU_GB_en_GB
+To get API credentials: https://developer.intuit.com/app/developer/qbo/docs/get-started/start-developing-your-app
+Get oAuth Authorization code from: https://developer.intuit.com/app/developer/playground
+"""
+
+from dlt.sources import DltResource
+
+from typing import Iterable, Sequence
+
+import dlt
+from .oauth_setup import QuickBooksAuth
+from .settings import sandbox_env, production_env
+from dlt.common.typing import TDataItem
+from intuitlib.client import AuthClient
+from quickbooks import QuickBooks
+from quickbooks.objects.customer import Customer
+from quickbooks.objects.invoice import Invoice
+
+
+@dlt.source(name="quickbooks_online")
+def quickbooks_online(
+    environment: str = sandbox_env,
+    client_id: str = dlt.secrets.value,
+    client_secret: str = dlt.secrets.value,
+    refresh_token: str = dlt.secrets.value,
+    company_id: str = dlt.secrets.value,
+    redirect_url: str = dlt.secrets.value,
+) -> Sequence[DltResource]:
+    """
+    Retrieves data from Quickbooks using the Quickbooks API.
+
+    Args:
+        environment (str): The environment used for authentication, choose variable sandbox_env | production_env
+        client_id (str): The client id provided by quickbooks for authentication. Defaults to the value in the `dlt.secrets` object.
+        client_secret (str): The client secret provided by quickbooks for authentication. Defaults to the value in the `dlt.secrets` object.
+        refresh_token (str): The refresh token given a quickbooks scope. Defaults to the value in the `dlt.secrets` object.
+        company_id (str): The company id / realm id provided by quickbooks. Defaults to the value in the `dlt.secrets` object.
+        redirect_url (str): The redirect uri end user creates in quickbooks, found in the developer application created. Defaults to the value in the `dlt.secrets` object.
+    Yields:
+        DltResource: Data resources from Quickbooks.
+    """
+
+    bearer_access_token = QuickBooksAuth(
+        client_id=client_id,
+        client_secret=client_secret,
+        company_id=company_id,
+        redirect_url=redirect_url,
+        refresh_token=refresh_token,
+        is_sandbox=False if environment == production_env else True,
+    ).get_bearer_token_from_refresh_token()
+
+    auth_client = AuthClient(
+        client_id=client_id,
+        client_secret=client_secret,
+        environment=environment,
+        redirect_uri=redirect_url,
+        access_token=bearer_access_token.accessToken,
+    )
+
+    client = QuickBooks(
+        auth_client=auth_client, refresh_token=refresh_token, company_id=company_id
+    )
+
+    # define resources
+    @dlt.resource
+    def customer() -> Iterable[TDataItem]:
+        customer = Customer.all(qb=client)  # returns a list of iterables
+        for record in customer:
+            yield record.to_dict()
+
+    @dlt.resource
+    def invoice() -> Iterable[TDataItem]:
+        invoice = Invoice.all(qb=client)
+        for record in invoice:
+            yield record.to_dict()
+
+    return [customer, invoice]

sources/quickbooks_online/oauth_setup.py

@@ -0,0 +1,185 @@
+from dlt.sources.helpers import requests
+import base64
+import json
+import random
+from typing import Union
+from urllib.parse import urlencode
+from .settings import (
+    discovery_document_url_sandbox,
+    discovery_document_url_prod,
+    Scopes,
+)
+
+
+class OAuth2Config:
+    def __init__(
+        self,
+        issuer: str = "",
+        auth_endpoint: str = "",
+        token_endpoint: str = "",
+        userinfo_endpoint: str = "",
+        revoke_endpoint: str = "",
+        jwks_uri: str = "",
+    ):
+        self.issuer = issuer
+        self.auth_endpoint = auth_endpoint
+        self.token_endpoint = token_endpoint
+        self.userinfo_endpoint = userinfo_endpoint
+        self.revoke_endpoint = revoke_endpoint
+        self.jwks_uri = jwks_uri
+
+
+class Bearer:
+    def __init__(
+        self,
+        refresh_expiry: str,
+        access_token: str,
+        token_type: str,
+        refresh_token: str,
+        access_token_expiry: str,
+        id_token: Union[str, None] = None,
+    ):
+        self.refreshExpiry = refresh_expiry
+        self.accessToken = access_token
+        self.tokenType = token_type
+        self.refreshToken = refresh_token
+        self.accessTokenExpiry = access_token_expiry
+        self.idToken = id_token
+
+
+class QuickBooksAuth:
+    def __init__(
+        self,
+        client_id: str,
+        client_secret: str,
+        company_id: str,
+        redirect_url: str,
+        refresh_token: str = None,
+        is_sandbox: Union[bool, None] = True,
+    ):
+        """
+        End user should use this class to generate refresh token once manually and store in secrets.toml
+        and continually use it to generate access tokens
+
+        Should the user need to change scopes, then this should be generated again and stored safely
+
+        Source code used is from: https://github.com/IntuitDeveloper/OAuth2PythonSampleApp/blob/master/sampleAppOAuth2/services.py
+        """
+        self.is_sandbox = is_sandbox or None
+        self.client_id = client_id
+        self.client_secret = client_secret
+        self.company_id = company_id
+        self.redirect_url = redirect_url
+        self.refresh_token = refresh_token
+
+    @staticmethod
+    def string_to_base64(s: str) -> str:
+        return base64.b64encode(bytes(s, "utf-8")).decode()
+
+    @staticmethod
+    def get_random_string(
+        length: int = 64,
+        allowed_chars: str = "abcdefghijklmnopqrstuvwxyz"
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
+    ) -> str:
+        return "".join(random.choice(allowed_chars) for i in range(length))
+
+    def get_discovery_document(self) -> OAuth2Config:
+        if self.is_sandbox:
+            discovery_document_url = discovery_document_url_sandbox
+        else:
+            discovery_document_url = discovery_document_url_prod
+        r = requests.get(discovery_document_url)
+        if r.status_code >= 400:
+            raise ConnectionError(r.json())
+
+        discovery_doc_json = r.json()
+        discovery_doc = OAuth2Config(
+            issuer=discovery_doc_json["issuer"],
+            auth_endpoint=discovery_doc_json["authorization_endpoint"],
+            userinfo_endpoint=discovery_doc_json["userinfo_endpoint"],
+            revoke_endpoint=discovery_doc_json["revocation_endpoint"],
+            token_endpoint=discovery_doc_json["token_endpoint"],
+            jwks_uri=discovery_doc_json["jwks_uri"],
+        )
+
+        return discovery_doc
+
+    def get_auth_url(self, scope: Union[str, Scopes]) -> str:
+        """
+        scopes available in settings.py from intuitlib.enums
+        """
+        auth_endpoint = self.get_discovery_document().auth_endpoint
+        auth_url_params = {
+            "client_id": self.client_id,
+            "redirect_uri": self.redirect_url,
+            "response_type": "code",
+            "scope": scope,
+            "state": self.get_random_string(),
+        }
+        url = f"{auth_endpoint}?{urlencode(auth_url_params)}"
+
+        return url
+
+    def get_bearer_token(
+        self, auth_code: str, client_id: str, client_secret: str, redirect_uri: str
+    ) -> Union[str, Bearer]:
+        token_endpoint = self.get_discovery_document().token_endpoint
+        auth_header = "Basic " + self.string_to_base64(client_id + ":" + client_secret)
+        headers = {
+            "Accept": "application/json",
+            "content-type": "application/x-www-form-urlencoded",
+            "Authorization": auth_header,
+        }
+        payload = {
+            "code": auth_code,
+            "redirect_uri": redirect_uri,
+            "grant_type": "authorization_code",
+        }
+        r = requests.post(token_endpoint, data=payload, headers=headers)
+        if r.status_code != 200:
+            return r.text
+        bearer_raw = json.loads(r.text)
+
+        if "id_token" in bearer_raw:
+            id_token = bearer_raw["id_token"]
+        else:
+            id_token = None
+
+        return Bearer(
+            bearer_raw["x_refresh_token_expires_in"],
+            bearer_raw["access_token"],
+            bearer_raw["token_type"],
+            bearer_raw["refresh_token"],
+            bearer_raw["expires_in"],
+            id_token=id_token,
+        )
+
+    def get_bearer_token_from_refresh_token(self) -> Bearer:
+        token_endpoint = self.get_discovery_document().token_endpoint
+        auth_header = "Basic " + self.string_to_base64(
+            self.client_id + ":" + self.client_secret
+        )
+        headers = {
+            "Accept": "application/json",
+            "content-type": "application/x-www-form-urlencoded",
+            "Authorization": auth_header,
+        }
+
+        payload = {"refresh_token": self.refresh_token, "grant_type": "refresh_token"}
+        r = requests.post(token_endpoint, data=payload, headers=headers)
+        bearer_raw = json.loads(r.text)
+
+        if "id_token" in bearer_raw:
+            id_token = bearer_raw["id_token"]
+        else:
+            id_token = None
+
+        return Bearer(
+            bearer_raw["x_refresh_token_expires_in"],
+            bearer_raw["access_token"],
+            bearer_raw["token_type"],
+            bearer_raw["refresh_token"],
+            bearer_raw["expires_in"],
+            id_token=id_token,
+        )

sources/quickbooks_online/requirements.txt

@@ -0,0 +1,3 @@
+dlt>=0.5.1
+python-quickbooks>=0.9.12
+intuit-oauth==1.2.6

sources/quickbooks_online/settings.py

@@ -0,0 +1,11 @@
+from intuitlib.enums import Scopes
+
+discovery_document_url_sandbox = (
+    "https://developer.api.intuit.com/.well-known/openid_sandbox_configuration"
+)
+discovery_document_url_prod = (
+    "https://developer.api.intuit.com/.well-known/openid_configuration"
+)
+
+sandbox_env = "sandbox"
+production_env = "production"

sources/quickbooks_online_pipeline.py

@@ -0,0 +1,16 @@
+import dlt
+from quickbooks_online import quickbooks_online
+
+
+def load_customer() -> None:
+    pipeline = dlt.pipeline(
+        pipeline_name="quickbooks_customer",
+        destination="duckdb",
+        dataset_name="quickbooks_online",
+    )
+    load_info = pipeline.run(quickbooks_online())
+    print(load_info)
+
+
+if __name__ == "__main__":
+    load_customer()