pocketflow/cookbook/pocketflow-streamlit-hitl/README.md

PocketFlow Streamlit Human-in-the-Loop (HITL) Application

Minimal Human-in-the-Loop (HITL) web application using PocketFlow and Streamlit. Submit text, review processed output, and approve/reject.

Features

• Streamlit UI: Simple, interactive interface for submitting tasks and providing feedback, built entirely in Python.
• PocketFlow Workflow: Manages distinct processing stages (initial processing, finalization) using synchronous PocketFlow Flows.
• Session State Management: Utilizes Streamlit's st.session_state to manage the current stage of the workflow and to act as the shared data store for PocketFlow.
• Iterative Feedback Loop: Allows users to reject processed output and resubmit, facilitating refinement.

How to Run

1. Install Dependencies:

   pip install -r requirements.txt
   

2. Run the Streamlit Application:

   streamlit run app.py
   

3. Access the Web UI: Open the URL provided by Streamlit (usually http://localhost:8501).

Files

• app.py: Main Streamlit application logic and UI.
• nodes.py: PocketFlow Node definitions.
• flows.py: PocketFlow Flow construction.
• utils/process_task.py: Simulated task processing utility.
• requirements.txt: Project dependencies.
• README.md: This file.