refactor: move state-machine into root examples dir (#1445)

Signed-off-by: Tyler Slaton <tyler@copilotkit.ai>
This commit is contained in:
Tyler Slaton
2025-02-28 17:41:58 -05:00
committed by GitHub
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# CopilotKit State Machine Example
This example demonstrates how to build an AI-powered car sales application using CopilotKit and Next.js. It showcases a state machine pattern for managing complex conversational flows with an AI assistant.
![State Machine](./assets/preview.png)
## Overview
The application simulates a car dealership experience where an AI assistant guides users through the process of:
1. Collecting contact information
2. Helping select a car
3. Offering financing options
4. Processing payment or financing details
5. Confirming the final order
## State Machine
State machines are a common pattern for managing complex conversational flows. With CopilotKit, you can easily use the built-in
API surface to create your own state machines. In this example, we've created a state machine for the car sales process.
### Stages
There are 6 stages in the state machine, each with a corresponding hook in the `stages` directory. Click through to read
more information about each stage.
1. [getContactInfo](./src/lib/stages/use-stage-get-contact-info.tsx)
2. [buildCar](./src/lib/stages/use-stage-build-car.tsx)
3. [sellFinancing](./src/lib/stages/use-stage-sell-financing.tsx)
4. [getFinancingInfo](./src/lib/stages/use-stage-get-financing-info.tsx)
5. [getPaymentInfo](./src/lib/stages/use-stage-get-payment-info.tsx)
6. [confirmOrder](./src/lib/stages/use-stage-confirm-order.tsx)
Each stage hook encapsulates the stage-specific CopilotKit configuration as well as the prompts for those stages.
### Global State
Glueing all of these stages together is the [car-sales-chat.tsx](./src/components/car-sales-chat.tsx) component and the
[use-global-state.tsx](./src/lib/stages/use-global-state.tsx) hook which manages the global state of the application.
### Visualizer
Included for visualizing the state machine is a [React Flow](https://reactflow.dev/) powered state machine visualizer. As the
assistant progress through the stages, the visualizer will update to reflect the current stage.
## Running Locally
1. Clone the repository:
```bash
git clone https://github.com/your-username/copilotkit.git
cd copilotkit/examples/state-machine
```
2. Install dependencies:
```bash
pnpm install
```
3. Get a public API key from [Copilot Cloud](https://cloud.copilotkit.ai) (free).
4. Set up your environment variables:
```bash
cp .env.example .env.local
```
Add your CopilotKit Public API key to `.env.local`:
```
NEXT_PUBLIC_CPK_PUBLIC_API_KEY=your_api_key_here
```
4. Run the development server:
```bash
pnpm dev
```
5. Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
## Learn More
- [CopilotKit Documentation](https://docs.copilotkit.ai)
- [Next.js Documentation](https://nextjs.org/docs)
- [OpenAI API Documentation](https://platform.openai.com/docs)
## Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
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@@ -112,7 +112,8 @@ export const REFERENCE_DOCS: ReferenceDocConfiguration[] = [
sourcePath: "packages/react-core/src/hooks/use-coagent-state-render.ts",
destinationPath: "docs/content/docs/reference/hooks/useCoAgentStateRender.mdx",
hook: "useCoAgentStateRender",
description: "The useCoAgentStateRender hook allows you to render the state of the agent in the chat.",
description:
"The useCoAgentStateRender hook allows you to render the state of the agent in the chat.",
},
{
sourcePath: "packages/react-core/src/hooks/use-coagent.ts",
@@ -273,7 +273,7 @@ standard deterministic update (button clicks), and sometimes through LLM-driven
## Advanced Patterns
This state machine pattern can be extended for complex interactions. Below are some advanced patterns you can implement with code sourced in our
[car sales example](https://github.com/CopilotKit/CopilotKit/tree/main/CopilotKit/examples/state-machine) which you already saw a demo of in the [overview](#overview).
[car sales example](https://github.com/CopilotKit/CopilotKit/tree/main/examples/state-machine) which you already saw a demo of in the [overview](#overview).
### Stage Transition Approaches
@@ -294,7 +294,7 @@ const [stage, setStage] = useState<string>("one");
The car sales demo uses this approach in generative UI (for more on generative UI, see the [section below](#generative-ui)) to transition between stages
when a user submits their contact information.
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/CopilotKit/examples/state-machine/src/lib/stages/use-stage-get-contact-info.tsx)
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/examples/state-machine/src/lib/stages/use-stage-get-contact-info.tsx)
```tsx title="src/lib/stages/use-stage-get-contact-info.tsx"
// imports ...
@@ -339,7 +339,7 @@ export function useStageGetContactInfo() {
Sometimes you need stages that can transition to different next stages based on user input or LLM-driven actions.
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/CopilotKit/examples/state-machine/src/lib/stages/use-stage-sell-financing.tsx)
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/examples/state-machine/src/lib/stages/use-stage-sell-financing.tsx)
```tsx title="src/lib/stages/use-stage-sell-financing.tsx"
function useStageSellFinancing() {
@@ -378,7 +378,7 @@ function useStageSellFinancing() {
When combined with the state machine pattern, you can build deep and interactive conversations with the user. For example, the `buildCar` stage in the car sales demo
uses generative UI to show the user available cars that they can choose from.
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/CopilotKit/examples/state-machine/src/lib/stages/use-stage-build-car.tsx)
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/examples/state-machine/src/lib/stages/use-stage-build-car.tsx)
<video src="/images/cookbook/state-machine/gen-ui.mp4" controls autoPlay loop muted playsInline className="rounded-xl shadow-lg border" />
@@ -481,7 +481,7 @@ To add an initial message to the chat, we can use the `appendMessage` function p
This is a temporary solution and we will be improving this in the near future.
</Callout>
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/CopilotKit/examples/state-machine/src/components/car-sales-chat.tsx)
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/examples/state-machine/src/components/car-sales-chat.tsx)
```tsx title="src/components/car-sales-chat.tsx"
import { useCopilotChat } from "@copilotkit/react-core";
@@ -517,7 +517,7 @@ Sometimes you'll want to guide the AI to call a specific tool when entering a st
The payment info stage demonstrates how to guide the AI to make specific tool calls by
adding additional instructions to call the `getPaymentInformation` tool explicitly.
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/CopilotKit/examples/state-machine/src/lib/stages/use-stage-get-payment-info.tsx)
Click here for the [source code](https://github.com/CopilotKit/CopilotKit/tree/main/examples/state-machine/src/lib/stages/use-stage-get-payment-info.tsx)
```tsx title="src/lib/stages/use-stage-get-payment-info.tsx"
export function useStageGetPaymentInfo() {
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@@ -0,0 +1,150 @@
# State Machine Copilot
Transform complex conversational flows into manageable state machines. This AI-powered car sales application demonstrates how to build sophisticated multi-stage interactions with contextual awareness and state transitions.
[Click here for a running example](https://state-machine-copilot.vercel.app/)
<div align="center">
<img src="./assets/preview.png" alt="State Machine Copilot for Car Sales"/>
<a href="https://copilotkit.ai" target="_blank">
<img src="https://img.shields.io/badge/Built%20with-CopilotKit-6963ff" alt="Built with CopilotKit"/>
</a>
<a href="https://nextjs.org" target="_blank">
<img src="https://img.shields.io/badge/Built%20with-Next.js%2014-black" alt="Built with Next.js"/>
</a>
<a href="https://reactflow.dev/" target="_blank">
<img src="https://img.shields.io/badge/Visualized%20with-React%20Flow-ff0072" alt="Visualized with React Flow"/>
</a>
</div>
## 🚗 Overview
This application simulates a car dealership experience where an AI assistant guides users through a multi-stage process:
1. **Contact Information** - Collecting customer details
2. **Car Selection** - Helping users build their dream car
3. **Financing Options** - Offering payment alternatives
4. **Payment Processing** - Handling financing or direct payment
5. **Order Confirmation** - Finalizing the purchase
The example showcases how to implement complex conversational flows using a state machine pattern with CopilotKit.
## 🛠️ Getting Started
### Prerequisites
- Node.js 18+
- npm, yarn, or pnpm
### Installation
1. Clone the repository:
```bash
git clone https://github.com/CopilotKit/CopilotKit.git
cd CopilotKit/examples/copilot-state-machine
```
2. Install dependencies:
```bash
pnpm install
```
<details>
<summary><b>Using other package managers</b></summary>
```bash
# Using yarn
yarn install
# Using npm
npm install
```
</details>
3. Create a `.env` file in the project root and add your [Copilot Cloud Public API Key](https://cloud.copilotkit.ai):
```
NEXT_PUBLIC_CPK_PUBLIC_API_KEY=your_api_key_here
```
4. Start the development server:
```bash
pnpm dev
```
<details>
<summary><b>Using other package managers</b></summary>
```bash
# Using yarn
yarn dev
# Using npm
npm run dev
```
</details>
5. Open [http://localhost:3000](http://localhost:3000) in your browser to see the application.
## 🧩 How It Works
This demo uses several key CopilotKit features to implement a state machine pattern:
### State Machine Architecture
The application is structured around 6 distinct stages, each with its own hook in the `stages` directory:
1. [getContactInfo](./src/lib/stages/use-stage-get-contact-info.tsx) - Collecting customer information
2. [buildCar](./src/lib/stages/use-stage-build-car.tsx) - Configuring car options
3. [sellFinancing](./src/lib/stages/use-stage-sell-financing.tsx) - Presenting financing options
4. [getFinancingInfo](./src/lib/stages/use-stage-get-financing-info.tsx) - Collecting financing details
5. [getPaymentInfo](./src/lib/stages/use-stage-get-payment-info.tsx) - Processing payment information
6. [confirmOrder](./src/lib/stages/use-stage-confirm-order.tsx) - Finalizing the order
Each stage hook encapsulates stage-specific CopilotKit configuration and prompts.
### Global State Management
The [use-global-state.tsx](./src/lib/stages/use-global-state.tsx) hook manages the application's global state, while the [car-sales-chat.tsx](./src/components/car-sales-chat.tsx) component ties all stages together.
### State Visualization
A [React Flow](https://reactflow.dev/) powered visualizer ([state-visualizer.tsx](./src/components/state-visualizer.tsx)) displays the current state and possible transitions, updating in real-time as the conversation progresses.
### CopilotKit Integration
Each stage uses CopilotKit's hooks to provide context-aware AI assistance:
```tsx
// Example from use-stage-build-car.tsx
useCopilotAction({
name: "updateCarConfiguration",
description: "Update the car configuration based on user preferences",
parameters: [
{
name: "model",
type: "string",
required: true,
description: "The car model selected by the user"
},
// Other parameters...
],
handler: async (action) => {
// Update state with the new configuration
},
});
```
## 📚 Learn More
Ready to build your own AI-powered state machine? Check out these resources:
- [CopilotKit Documentation](https://docs.copilotkit.ai) - Comprehensive guides and API references
- [CopilotKit Cloud](https://cloud.copilotkit.ai/) - Deploy your copilots with our managed cloud solution
- [React Flow Documentation](https://reactflow.dev/docs/introduction/) - Learn more about building interactive node-based UIs
## 🤝 Contributing
Contributions are welcome! Please feel free to submit a Pull Request.

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"version": "0.1.0",
"private": true,
"scripts": {
"example-dev": "next dev",
"example-build": "next build",
"example-start": "next start",
"dev": "next dev",
"build": "next build",
"start": "next start",
"lint": "next lint",
"clean": "rm -rf .turbo && rm -rf node_modules && rm -rf dist && rm -rf .next"
},
"dependencies": {
"@copilotkit/react-core": "workspace:*",
"@copilotkit/react-ui": "workspace:*",
"@copilotkit/react-core": "1.6.0",
"@copilotkit/react-ui": "1.6.0",
"clsx": "^1.2.1",
"motion": "^11.18.1",
"next": "14.2.1",
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