Purpose and Scope

Flasgo exists to give Python developers a web framework that feels direct and productive without treating security as optional.

The project focuses on four priorities:

1. Fast request handling through an ASGI-native core.
2. First-class async support for modern Python applications.
3. Secure defaults that reduce common deployment mistakes.
4. A concise, type-friendly API that stays approachable.

What Flasgo is for

Flasgo is designed for APIs, small to medium web apps, and service backends where developers want a lightweight programming model but still need sound production behavior.

It is especially useful when you want:

• Flask-like route handlers and quick iteration
• Explicit, code-driven configuration
• Built-in support for forms, templates, JSON responses, and static assets
• Typed request models and reusable sync or async dependencies
• Secure WebSocket routes, lifespan-managed resources, and background tasks
• Built-in testing, operational checks, structured logs, optional metrics, and optional tracing
• An easier migration path from Flask-style applications to ASGI deployment

What Flasgo does not try to be

Flasgo does not aim to be a batteries-everywhere framework with a huge abstraction surface. The project keeps the API intentionally narrow and leaves room for teams to layer in their own application structure.

Flasgo 0.9.0 additions

Flasgo 0.9.0 adds HTTP blueprints and URL generation, explicit dependency lifetimes and test overrides, response contracts, bounded streams/SSE/NDJSON, deployment policy snapshots, and shared Redis/Valkey quotas and sessions. See the 0.9.0 feature overview and its linked guides. Flasgo leaves ORM selection, durable background jobs, event replay, and the outbound HTTP client to the application.

Related docs

• What is Flasgo?
• Key Components
• Development and Deployment

Sources:

• README.md
• pyproject.toml