wehub-resource-sync
50 lines
1.6 KiB
Markdown
50 lines
1.6 KiB
Markdown
LangGraph — wired via `@copilotkit/runtime/langgraph`. Supports LangGraph Platform
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deployments and self-hosted LangGraph servers.
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## Install
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`LangGraphAgent` (and `LangGraphHttpAgent` for self-hosted AG-UI LangGraph servers)
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ship with `@copilotkit/runtime` — no separate install needed.
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## Minimal wire-up
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```typescript
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import {
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CopilotRuntime,
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createCopilotRuntimeHandler,
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} from "@copilotkit/runtime/v2";
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import { LangGraphAgent } from "@copilotkit/runtime/langgraph";
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const runtime = new CopilotRuntime({
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agents: {
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default: new LangGraphAgent({
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deploymentUrl: process.env.LANGGRAPH_URL!,
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graphId: "agent",
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langsmithApiKey: process.env.LANGSMITH_API_KEY, // optional
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}),
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},
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});
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const handler = createCopilotRuntimeHandler({
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runtime,
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basePath: "/api/copilotkit",
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});
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export default { fetch: handler };
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```
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## Config fields
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| Field | Notes |
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| ----------------- | --------------------------------------------------------------------- |
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| `deploymentUrl` | Base URL of the LangGraph Platform deployment (or self-hosted server) |
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| `graphId` | The graph name registered with the deployment (e.g. `"agent"`) |
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| `langsmithApiKey` | Optional — enables LangSmith tracing |
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## Gotcha — `deploymentUrl` is NOT the CopilotKit runtime URL
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The most common mistake is setting `deploymentUrl` to `/api/copilotkit`. That is the
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frontend↔runtime URL, not the LangGraph server. Use the actual LangGraph deployment URL.
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Source: `docs/content/docs/integrations/langgraph/quickstart.mdx:355`.
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