FastAPI VS Substack

• High Performance
  Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
• Automatic Interactive API Documentation
  FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
• Type Checking and Validation
  With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
• Ease of Use
  Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
• Asynchronous Support
  FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
• Extensive Documentation
  It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
• Community and Ecosystem
  FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages

• Learning Curve for Asynchronous Programming
  Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
• Complex Dependencies
  Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
• Early Stage Libraries
  Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
• Limited Real-World Examples
  Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
• Deployment Complexity
  Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.

• Ease of Use
  Substack offers a user-friendly interface that makes it easy for writers to publish and monetize their newsletters.
• Built-in Monetization
  Writers can easily charge readers for subscriptions, allowing for straightforward monetization.
• Direct Audience Connection
  Substack allows writers to build a direct relationship with their audience via email, which can lead to a more engaged readership.
• Discovery and Community
  Features like staff picks and recommendations help writers get discovered by new readers.
• No Upfront Costs
  Substack does not charge upfront fees; instead, it takes a percentage of subscription revenues, making it easier to start.
• Content Ownership
  Writers retain full ownership of their content, giving them more control over their work.

Possible disadvantages

• Revenue Share
  Substack takes a 10% cut of subscription revenues, which can add up for writers with a large subscriber base.
• Limited Customization
  The platform has limited customization options compared to building a custom website or using more flexible CMS options.
• Dependency on Platform
  Relying on Substack means depending on its policies and infrastructure, which could pose risks if the platform changes its terms or features.
• Competition
  As more writers join Substack, it can become challenging to stand out amidst the growing competition.
• Email Deliverability
  Writers may face issues with email deliverability, as some newsletters may end up in spam folders.
• Payment Processing Fees
  Besides Substack's fee, payment processors like Stripe also take a percentage, further reducing net earnings for writers.

FastAPI from the ground up

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