add readme

README.md

@@ -1 +1,81 @@
-# Streamlit Chat Handler
+# Streamlit Chat Handler
+
+Streamlit Chat Handler is a Python library designed to manage and render chat elements within a Streamlit application. This library simplifies the process of creating, storing, and dynamically rendering messages in a chat interface, supporting interactive communication scenarios in Streamlit.
+
+## Features
+
+- **Session Management**: Uses a singleton pattern to ensure a unique chat handler instance per session.
+- **Dynamic Rendering**: Seamlessly append and render chat elements as user or assistant within the Streamlit session.
+- **Customizable Chat Elements**: Supports different types of messages, such as text and markdown, with the flexibility to pass additional arguments and keyword arguments for rendering.
+
+## Installation
+
+You can install the `Streamlit Chat Handler` via pip:
+
+```bash
+pip install streamlit-chat-handler
+```
+
+## Quick Start
+
+Here's a quick example to get started with using `Streamlit Chat Handler` in your Streamlit app:
+
+```python
+import uuid
+from time import sleep
+import streamlit as st
+from streamlit_chat_handler import StreamlitChatHandler
+
+# Initialize session
+if "session_id" not in st.session_state:
+    st.session_state["session_id"] = str(uuid.uuid4())
+
+# Create a chat handler instance
+chat_handler = StreamlitChatHandler(
+    st.session_state,
+    session_id=st.session_state["session_id"],
+).render()
+
+# Process user input
+if prompt := st.chat_input("What is up?"):
+    chat_handler.append(role="user", type="markdown", content=prompt, render=True)
+
+    with st.spinner("Processing..."):
+        sleep(1)
+        chat_handler.append(role="assistant", type="markdown", content="answer", render=True)
+
+```
+
+## Documentation
+
+### Class: StreamlitChatHandler
+
+This class handles the state and rendering of chat elements within a Streamlit session. It is designed to manage chat elements dynamically, maintaining a unique instance per session through a singleton pattern.
+
+#### Methods
+
+- `append`: Adds a new chat element to the session.
+- `render`: Renders all chat elements stored in the session.
+- `render_last`: Renders the last added chat element.
+
+### Class: StreamlitChatElement
+
+Defines the structure of a chat element, handling its rendering through Streamlit's API.
+
+#### Attributes
+
+- `role`: Specifies whether the message is from a user or an assistant.
+- `type`: Defines the Streamlit widget type for rendering (`text`, `markdown`, etc.).
+- `content`: The content to be rendered, depends on the `type`.
+
+#### Method
+
+- `render`: Renders the chat element using the specified Streamlit widget.
+
+## Contributing
+
+Contributions are welcome! Please fork the repository and submit pull requests to contribute.
+
+## License
+
+This project is licensed under the MIT License - see the LICENSE file for details.