Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
http://www.langflow.org
0cf4f03400* refactor: Improve error handling in aupdate_messages function * Update src/backend/base/langflow/memory.py Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org> * fix(tests): updating a non-existing message adds a new message now - Updated the test name from `test_aupdate_nonexistent_message` to `test_aupdate_nonexistent_message_generates_a_new_message` for better clarity. - Modified the assertion to expect that a new message is generated when attempting to update a nonexistent message, changing the expected length of the updated messages from 0 to 1. * [autofix.ci] apply automated fixes * fix(tests): update message handling in tests for non-existent messages - Refactored tests to ensure that attempting to update a non-existent message raises a ValueError instead of creating a new message. - Updated test names and assertions for clarity and accuracy, ensuring they reflect the expected behavior when handling messages that do not exist in the database. --------- Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org> Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> |
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Langflow is a low-code app builder for RAG and multi-agent AI applications. It’s Python-based and agnostic to any model, API, or database.
Docs - Free Cloud Service - Self Managed
✨ Core features
- Python-based and agnostic to models, APIs, data sources, or databases.
- Visual IDE for drag-and-drop building and testing of workflows.
- Playground to immediately test and iterate workflows with step-by-step control.
- Multi-agent orchestration and conversation management and retrieval.
- Free cloud service to get started in minutes with no setup.
- Publish as an API or export as a Python application.
- Observability with LangSmith, LangFuse, or LangWatch integration.
- Enterprise-grade security and scalability with free DataStax Langflow cloud service.
- Customize workflows or create flows entirely just using Python.
- Ecosystem integrations as reusable components for any model, API or database.
📦 Quickstart
- Install with uv (recommended) (Python 3.10 to 3.12):
uv pip install langflow
- Install with pip (Python 3.10 to 3.12):
pip install langflow
- Cloud: DataStax Langflow is a hosted environment with zero setup. Sign up for a free account.
- Self-managed: Run Langflow in your environment. Install Langflow to run a local Langflow server, and then use the Quickstart guide to create and execute a flow.
- Hugging Face: Clone the space using this link to create a Langflow workspace.
⭐ Stay up-to-date
Star Langflow on GitHub to be instantly notified of new releases.
👋 Contribute
We welcome contributions from developers of all levels. If you'd like to contribute, please check our contributing guidelines and help make Langflow more accessible.