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Can I use Python in OutSystems?

Published in OutSystems Integration 4 mins read

No, OutSystems does not natively support Python directly within its development environment for writing application logic. However, it offers robust and flexible integration capabilities that allow you to effectively use Python-based services and functionalities within your OutSystems applications.

Understanding Python Integration in OutSystems

While you cannot write Python code directly in OutSystems' Service Studio, the platform is designed to seamlessly connect with external services. This means you can develop your Python logic independently and then integrate it into your OutSystems applications. This approach leverages the strengths of both platforms: Python for its powerful libraries (e.g., machine learning, data science, complex algorithms) and OutSystems for rapid application development, user interface, database management, and business process automation.

How to Integrate Python with OutSystems

The primary methods for integrating Python services involve using standard communication protocols, primarily through Application Programming Interfaces (APIs) and other external service connections.

1. REST APIs

This is the most common and recommended method for integrating Python with OutSystems.

  • Develop Python Services: Create your Python application or script as an independent service (e.g., using Flask, Django, FastAPI) that exposes its functionalities via RESTful endpoints.
  • Expose Endpoints: Define specific URLs within your Python service that, when accessed, perform certain actions or return data.
  • Consume in OutSystems: Use OutSystems' built-in "Consume REST API" functionality. You can import an OpenAPI (Swagger) definition or manually configure the API methods. OutSystems will then automatically generate actions you can drag and drop into your application logic to call your Python service.

2. SOAP Web Services

While less common for modern integrations, OutSystems also supports consuming SOAP web services. If your Python service needs to expose functionality via SOAP, OutSystems can integrate with it similarly to REST, using the "Consume SOAP Web Service" feature.

3. Message Queues

For asynchronous communication or scenarios requiring high throughput and decoupled architectures, you can use message queues (e.g., RabbitMQ, Apache Kafka, AWS SQS).

  • Python as Producer/Consumer: Your Python service can act as a producer, sending messages to a queue, or as a consumer, processing messages from a queue.
  • OutSystems Integration: OutSystems can also integrate with these queues using connectors or by calling intermediary services that interact with the queues.

4. Database Integration (Less Common for Logic)

While not for executing Python code directly, OutSystems can connect to various databases. If your Python application populates a database, OutSystems can directly read from or write to that database. This is typically used for data exchange rather than executing Python logic.

Practical Implementation Steps

Here's a simplified overview of the process:

  • Design Your Python Logic: Identify the specific functionalities (e.g., a machine learning model prediction, a complex data transformation) that you want Python to handle.
  • Build a Python API Service:
    • Choose a web framework (e.g., Flask, FastAPI) to build your API.
    • Write the Python code for your desired functionality.
    • Define API endpoints (e.g., /predict, /process_data).
    • Ensure proper input validation and output formatting (e.g., JSON).
  • Deploy Your Python Service: Host your Python API service on a server, cloud platform (e.g., AWS Lambda, Azure Functions, Google Cloud Run), or a containerization platform (e.g., Docker, Kubernetes).
  • Integrate in OutSystems:
    • In OutSystems Service Studio, open the Logic tab.
    • Right-click on REST (or SOAP) under Integrations and choose "Consume a REST API."
    • Specify the URL of your deployed Python API.
    • Configure the methods (GET, POST, PUT, DELETE) and parameters.
    • OutSystems generates actions that you can then drag into your server-side logic flows.
  • Call the Python Service: Use the generated OutSystems actions within your application logic whenever you need to execute the Python functionality.

Benefits of this Integration Approach

Aspect Description
Leverage Python Ecosystem Access vast libraries for AI/ML, data processing, scientific computing, etc., not native to OutSystems.
Scalability Python services can be scaled independently of the OutSystems application.
Modularity Decouple complex logic into distinct Python microservices, improving maintainability.
Performance Execute computationally intensive tasks in Python, potentially offloading the OutSystems server.
Flexibility Use the best tool for each specific job – Python for backend processing, OutSystems for rapid UI and workflow.

In summary, while OutSystems does not run Python code natively, its robust integration capabilities ensure that you can harness the power of Python by consuming external Python-based services via standard APIs.