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agent-chat-ui/agent/ui.tsx

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2025-02-18 19:35:46 +01:00
import "./ui.css";
import { useStream } from "@langchain/langgraph-sdk/react";
import type { AIMessage, Message } from "@langchain/langgraph-sdk";
import { useState } from "react";
function ReactComponent(props: { instruction: string; logo: string }) {
const [counter, setCounter] = useState(0);
// useStream should be able to be infered from context
const thread = useStream<{ messages: Message[] }, { messages: Message[] }>({
assistantId: "assistant_123",
apiUrl: "http://localhost:3123",
});
const aiTool = thread.messages
.slice()
.reverse()
.find(
(message): message is AIMessage =>
message.type === "ai" && !!message.tool_calls?.length
);
const toolCallId = aiTool?.tool_calls?.[0]?.id;
return (
<div className="flex flex-col gap-2 border border-solid border-slate-500 p-4 rounded-md">
Request: {props.instruction}
<button className="text-left" onClick={() => setCounter(counter + 1)}>
Click me
</button>
<p>Counter: {counter}</p>
{toolCallId && (
<button
className="text-left"
onClick={() => {
thread.submit({
messages: [
{
type: "tool",
tool_call_id: toolCallId!,
name: "stockbroker",
content: "hey",
},
{ type: "human", content: `Buy ${counter}` },
],
});
}}
>
Buy
</button>
)}
</div>
);
}
const ComponentMap = { "react-component": ReactComponent } as const;
export default ComponentMap;