Load Dow Jones Risk and Compliance data in Python using dltHub

Build a Dow Jones Risk and Compliance-to-database or-dataframe pipeline in Python using dlt with automatic Cursor support.

In this guide, we'll set up a complete Dow Jones Risk and Compliance data pipeline from API credentials to your first data load in just 10 minutes. You'll end up with a fully declarative Python pipeline based on dlt's REST API connector, like in the partial example code below:

Example code
@dlt.source
def dow_jones_risk_and_compliance_source(access_token=dlt.secrets.value):
    config: RESTAPIConfig = {
        "client": {
            "base_url": "https://asset.wsj.net/dynamic-insets/charts",
            "auth": {
                "type": "bearer",
                "token": access_token,
            }
        },
        "resources": [
            "cdc_eee74dac5510e6115570f5ae.json", "cdc_7a7e38aa1911f43f0a4f0a67.json"
        ],
    }
    [...]
    yield from rest_api_resources(config)


def get_data() -> None:
    # Connect to destination
    pipeline = dlt.pipeline(
        pipeline_name='dow_jones_risk_and_compliance_pipeline',
        destination='duckdb',
        dataset_name='dow_jones_risk_and_compliance_data', 
    )
    # Load the data
    load_info = pipeline.run(dow_jones_risk_and_compliance_source())
    print(load_info)

Why use dltHub Workspace with LLM Context to generate Python pipelines?

  • Accelerate pipeline development with AI-native context
  • Debug pipelines, validate schemas and data with the integrated Pipeline Dashboard
  • Build Python notebooks for end users of your data
  • Low maintenance thanks to Schema evolution with type inference, resilience and self documenting REST API connectors. A shallow learning curve makes the pipeline easy to extend by any team member
  • dlt is the tool of choice for Pythonic Iceberg Lakehouses, bringing mature data loading to pythonic Iceberg with or without catalogs

What you’ll do

We’ll show you how to generate a readable and easily maintainable Python script that fetches data from dow_jones_risk_and_compliance’s API and loads it into Iceberg, DataFrames, files, or a database of your choice. Here are some of the endpoints you can load:

  • Dynamic Insets: Endpoints related to dynamic inset charts, providing JSON data for specific chart configurations or datasets.
    • /dynamic-insets/charts/cdc_eee74dac5510e6115570f5ae.json: JSON data for a specific dynamic inset chart.
    • /dynamic-insets/charts/cdc_7a7e38aa1911f43f0a4f0a67.json: JSON data for another specific dynamic inset chart.

You will then debug the Dow Jones Risk and Compliance pipeline using our Pipeline Dashboard tool to ensure it is copying the data correctly, before building a Notebook to explore your data and build reports.

Setup & steps to follow

💡
Before getting started, let's make sure Cursor is set up correctly:

Now you're ready to get started!

  1. ⚙️ Set up dlt Workspace

    Install dlt with duckdb support:

    pip install "dlt[workspace]"

    Initialize a dlt pipeline with Dow Jones Risk and Compliance support.

    dlt init dlthub:dow_jones_risk_and_compliance duckdb

    The init command will setup the necessary files and folders for the next step.

  2. 🤠 Start LLM-assisted coding

    Here’s a prompt to get you started:

    Prompt
    Please generate a REST API Source for Dow Jones Risk and Compliance API, as specified in @dow_jones_risk_and_compliance-docs.yaml 
Start with endpoints cdc_eee74dac5510e6115570f5ae.json and cdc_7a7e38aa1911f43f0a4f0a67.json and skip incremental loading for now. 
Place the code in dow_jones_risk_and_compliance_pipeline.py and name the pipeline dow_jones_risk_and_compliance_pipeline. 
If the file exists, use it as a starting point. 
Do not add or modify any other files. 
Use @dlt rest api as a tutorial. 
After adding the endpoints, allow the user to run the pipeline with python dow_jones_risk_and_compliance_pipeline.py and await further instructions.

  3. 🔒 Set up credentials

    The snippets reference the Dow Jones developer documentation for sessions and authentication, indicating that users should visit the links provided to obtain necessary credentials, but do not specify any particular keys, tokens, or other authentication details.

    To get the appropriate API keys, please visit the original source at https://developer.dowjones.com/documents/documents-site-docs-risk_and_compliance_apis-asam-api. If you want to protect your environment secrets in a production environment, look into setting up credentials with dlt.

  4. 🏃‍♀️ Run the pipeline in the Python terminal in Cursor

    python dow_jones_risk_and_compliance_pipeline.py

    If your pipeline runs correctly, you’ll see something like the following:

    Pipeline dow_jones_risk_and_compliance load step completed in 0.26 seconds
1 load package(s) were loaded to destination duckdb and into dataset dow_jones_risk_and_compliance_data
The duckdb destination used duckdb:/dow_jones_risk_and_compliance.duckdb location to store data
Load package 1749667187.541553 is LOADED and contains no failed jobs

  5. 📈 Debug your pipeline and data with the Pipeline Dashboard

    Now that you have a running pipeline, you need to make sure it’s correct, so you do not introduce silent failures like misconfigured pagination or incremental loading errors. By launching the dlt Workspace Pipeline Dashboard, you can see various information about the pipeline to enable you to test it. Here you can see:

    • Pipeline overview: State, load metrics
    • Data’s schema: tables, columns, types, hints
    • You can query the data itself
    dlt pipeline dow_jones_risk_and_compliance_pipeline show

  6. 🐍 Build a Notebook with data explorations and reports

    With the pipeline and data partially validated, you can continue with custom data explorations and reports. To get started, paste the snippet below into a new marimo Notebook and ask your LLM to go from there. Jupyter Notebooks and regular Python scripts are supported as well.

    import dlt

data = dlt.pipeline("dow_jones_risk_and_compliance_pipeline").dataset()
# get "cdc_eee74dac5510e6115570f5ae.json" table as Pandas frame
data."cdc_eee74dac5510e6115570f5ae.json".df().head()

Extra resources:

Next steps