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Python Guide: Loading Data from stripe to motherduck using dlt

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This technical documentation provides a guide on how to load data from Stripe, a comprehensive payments platform with easy integration and transparent pricing, to MotherDuck, a swift in-process analytical database with a rich SQL dialect. The process is facilitated by dlt, an open-source Python library. The aim is to leverage Stripe's simple APIs and MotherDuck's deep integrations into client APIs to scale your business faster. Further information about Stripe can be found at https://stripe.com.

dlt Key Features​

  • Sources and Resources: dlt operates on the principle of sources and resources, providing a variety of default and incremental endpoints for data loading. It also allows for the creation of custom pipelines for data loading to a destination. Learn more
  • Setup Guide: dlt provides a comprehensive setup guide for each verified source, detailing how to initialize the source, add credentials, and run the pipeline. Learn more
  • Integration with dbt: dlt integrates seamlessly with dbt, a popular open-source data transformation tool, allowing you to transform your data and load it into your data warehouse in a format ready for analysis. Learn more
  • Incremental Loading: dlt supports incremental loading, which means that after each run, the 'initial_start_date' updates to the last loaded date. Subsequent runs then retrieve only new data using append mode, streamlining the process and preventing redundant data downloads. Learn more
  • Automated Tests: Each destination in dlt must pass several automatic tests to ensure stability and reliability. Learn more

Getting started with your pipeline locally​

0. Prerequisites​

dlt requires Python 3.8 or higher. Additionally, you need to have the pip package manager installed, and we recommend using a virtual environment to manage your dependencies. You can learn more about preparing your computer for dlt in our installation reference.

1. Install dlt​

First you need to install the dlt library with the correct extras for MotherDuck:

pip install "dlt[motherduck]"

The dlt cli has a useful command to get you started with any combination of source and destination. For this example, we want to load data from Stripe to MotherDuck. You can run the following commands to create a starting point for loading data from Stripe to MotherDuck:

# create a new directory
mkdir my-stripe_analytics-pipeline
cd my-stripe_analytics-pipeline
# initialize a new pipeline with your source and destination
dlt init stripe_analytics motherduck
# install the required dependencies
pip install -r requirements.txt

The last command will install the required dependencies for your pipeline. The dependencies are listed in the requirements.txt:

pandas>=2.0.0
stripe>=5.0.0
dlt[motherduck]>=0.3.5

You now have the following folder structure in your project:

my-stripe_analytics-pipeline/
├── .dlt/
│   ├── config.toml          # configs for your pipeline
│   └── secrets.toml         # secrets for your pipeline
├── stripe_analytics/                   # folder with source specific files
│   └── ...
├── stripe_analytics_pipeline.py        # your main pipeline script
├── requirements.txt         # dependencies for your pipeline
└── .gitignore               # ignore files for git (not required)

2. Configuring your source and destination credentials​

The dlt cli will have created a .dlt directory in your project folder. This directory contains a config.toml file and a secrets.toml file that you can use to configure your pipeline:

config.toml​

# put your configuration values here

[runtime]
log_level="WARNING"  # the system log level of dlt
# use the dlthub_telemetry setting to enable/disable anonymous usage data reporting, see https://dlthub.com/docs/telemetry
dlthub_telemetry = true

secrets.toml​

# put your secret values and credentials here. do not share this file and do not push it to github

[sources.stripe_analytics]
stripe_secret_key = "stripe_secret_key" # please set me up!

[destination.motherduck.credentials]
database = "database" # please set me up!
password = "password" # please set me up!
Further help setting up your source and destinations

Please consult the detailed setup instructions for the MotherDuck destination in the dlt destinations documentation.

Likewise you can find the setup instructions for Stripe source in the dlt verifed sources documentation.

3. Running your pipeline for the first time​

The dlt cli has also created a main pipeline script for you at stripe_analytics_pipeline.py, as well as a folder stripe_analytics that contains additional python files for your source. These files are your local copies which you can modify to fit your needs. In some cases you may find that you only need to do small changes to your pipelines or add some configurations, in other cases these files can serve as a working starting point for your code, but will need to be adjusted to do what you need them to do.

The main pipeline script will look something like this:

from typing import Optional, Tuple

import dlt
from pendulum import DateTime, datetime
from stripe_analytics import (
    ENDPOINTS,
    INCREMENTAL_ENDPOINTS,
    incremental_stripe_source,
    metrics_resource,
    stripe_source,
)


def load_data(
    endpoints: Tuple[str, ...] = ENDPOINTS + INCREMENTAL_ENDPOINTS,
    start_date: Optional[DateTime] = None,
    end_date: Optional[DateTime] = None,
) -> None:
    """
    This demo script uses the resources with non-incremental
    loading based on "replace" mode to load all data from provided endpoints.

    Args:
        endpoints: A tuple of endpoint names to retrieve data from. Defaults to most popular Stripe API endpoints.
        start_date: An optional start date to limit the data retrieved. Defaults to None.
        end_date: An optional end date to limit the data retrieved. Defaults to None.
    """
    pipeline = dlt.pipeline(
        pipeline_name="stripe_analytics",
        destination='motherduck',
        dataset_name="stripe_updated",
    )
    source = stripe_source(
        endpoints=endpoints, start_date=start_date, end_date=end_date
    )
    load_info = pipeline.run(source)
    print(load_info)


def load_incremental_endpoints(
    endpoints: Tuple[str, ...] = INCREMENTAL_ENDPOINTS,
    initial_start_date: Optional[DateTime] = None,
    end_date: Optional[DateTime] = None,
) -> None:
    """
    This demo script demonstrates the use of resources with incremental loading, based on the "append" mode.
    This approach enables us to load all the data
    for the first time and only retrieve the newest data later,
    without duplicating and downloading a massive amount of data.

    Make sure you're loading objects that don't change over time.

    Args:
        endpoints: A tuple of incremental endpoint names to retrieve data from.
                   Defaults to Stripe API endpoints with uneditable data.
        initial_start_date: An optional parameter that specifies the initial value for dlt.sources.incremental.
                            If parameter is not None, then load only data that were created after initial_start_date on the first run.
                            Defaults to None. Format: datetime(YYYY, MM, DD).
        end_date: An optional end date to limit the data retrieved.
                  Defaults to None. Format: datetime(YYYY, MM, DD).
    """
    pipeline = dlt.pipeline(
        pipeline_name="stripe_analytics",
        destination='motherduck',
        dataset_name="stripe_incremental",
    )
    # load all data on the first run that created before end_date
    source = incremental_stripe_source(
        endpoints=endpoints,
        initial_start_date=initial_start_date,
        end_date=end_date,
    )
    load_info = pipeline.run(source)
    print(load_info)

    # # load nothing, because incremental loading and end date limit
    # source = incremental_stripe_source(
    #     endpoints=endpoints,
    #     initial_start_date=initial_start_date,
    #     end_date=end_date,
    # )
    # load_info = pipeline.run(source)
    # print(load_info)
    #
    # # load only the new data that created after end_date
    # source = incremental_stripe_source(
    #     endpoints=endpoints,
    #     initial_start_date=initial_start_date,
    # )
    # load_info = pipeline.run(source)
    # print(load_info)


def load_data_and_get_metrics() -> None:
    """
    With the pipeline, you can calculate the most important metrics
    and store them in a database as a resource.
    Store metrics, get calculated metrics from the database, build dashboards.

    Supported metrics:
        Monthly Recurring Revenue (MRR),
        Subscription churn rate.

    Pipeline returns both metrics.

    Use Subscription and Event endpoints to calculate the metrics.
    """

    pipeline = dlt.pipeline(
        pipeline_name="stripe_analytics",
        destination='motherduck',
        dataset_name="stripe_metrics",
    )

    # Event is an endpoint with uneditable data, so we can use 'incremental_stripe_source'.
    source_event = incremental_stripe_source(endpoints=("Event",))
    # Subscription is an endpoint with editable data, use stripe_source.
    source_subs = stripe_source(endpoints=("Subscription",))

    # convert dates to the timestamp format
    source_event.resources["Event"].apply_hints(
        columns={
            "created": {"data_type": "timestamp"},
        }
    )

    source_subs.resources["Subscription"].apply_hints(
        columns={
            "created": {"data_type": "timestamp"},
        }
    )

    load_info = pipeline.run(data=[source_subs, source_event])
    print(load_info)

    resource = metrics_resource()
    load_info = pipeline.run(resource)
    print(load_info)


if __name__ == "__main__":
    # load only data that was created during the period between the Jan 1, 2024 (incl.), and the Feb 1, 2024 (not incl.).
    load_data(start_date=datetime(2024, 1, 1), end_date=datetime(2024, 2, 1))
    # load only data that was created during the period between the May 3, 2023 (incl.), and the March 1, 2024 (not incl.).
    load_incremental_endpoints(
        endpoints=("Event",),
        initial_start_date=datetime(2023, 5, 3),
        end_date=datetime(2024, 3, 1),
    )
    # load Subscription and Event data, calculate metrics, store them in a database
    load_data_and_get_metrics()

Provided you have set up your credentials, you can run your pipeline like a regular python script with the following command:

python stripe_analytics_pipeline.py

4. Inspecting your load result​

You can now inspect the state of your pipeline with the dlt cli:

dlt pipeline stripe_analytics info

You can also use streamlit to inspect the contents of your MotherDuck destination for this:

# install streamlit
pip install streamlit
# run the streamlit app for your pipeline with the dlt cli:
dlt pipeline stripe_analytics show

5. Next steps to get your pipeline running in production​

One of the beauties of dlt is, that we are just a plain Python library, so you can run your pipeline in any environment that supports Python >= 3.8. We have a couple of helpers and guides in our docs to get you there:

The Deploy section will show you how to deploy your pipeline to​

  • Github Actions: dlt enables deployment via Github Actions. This CI/CD runner is essentially free to use and can be scheduled to run at specific times using a cron schedule expression. Find out more about how to deploy with Github Actions.
  • Airflow: A pipeline can be deployed using Airflow, a platform used to programmatically author, schedule and monitor workflows. dlt provides an Airflow wrapper to simplify this process. Learn more about deploying a pipeline with Airflow.
  • Google Cloud Functions: dlt also supports deployment via Google Cloud Functions, a serverless execution environment for building and connecting cloud services. Discover how to deploy a pipeline with Google Cloud Functions.
  • Other Deployment Methods: In addition to the above, dlt supports several other methods for deploying a pipeline. Explore these other deployment methods.

The running in production section will teach you about:​

  • Monitor Your Pipeline: dlt provides comprehensive monitoring capabilities that allow you to track the progress of your data pipeline. You can inspect and save load information and trace, as well as inspect, save, and alert on schema changes. More details can be found here.
  • Set Up Alerts: With dlt, you can easily set up alerts to notify you of any issues or changes in your pipeline. This feature is particularly useful for maintaining the health and efficiency of your data pipeline. Learn how to set up alerts here.
  • Set Up Tracing: Tracing is a powerful feature in dlt that provides detailed information about the execution of your pipeline. It helps you understand how data is flowing through your pipeline and where potential bottlenecks or errors may occur. Find out how to set up tracing here.

Available Sources and Resources​

For this verified source the following sources and resources are available

Source incremental_stripe_source​

This source provides detailed transactional and subscription data from Stripe's payment platform.

Resource NameWrite DispositionDescription
EventappendThis resource retrieves significant activities in a Stripe account. It includes detailed information about various transactions like payments, invoices, subscriptions, etc.

Source stripe_source​

Stripe source provides transactional data, subscription details, and key business metrics from Stripe platform.

Resource NameWrite DispositionDescription
MetricsappendThis resource provides key metrics for the Stripe account, such as churn rate, creation date, and monthly recurring revenue (MRR).
SubscriptionreplaceThis resource includes detailed information about subscriptions in the Stripe account, including billing details, discount coupons, invoice settings, and more.

Additional pipeline guides​

This demo works on codespaces. Codespaces is a development environment available for free to anyone with a Github account. You'll be asked to fork the demo repository and from there the README guides you with further steps.
The demo uses the Continue VSCode extension.

Off to codespaces!

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