Files
copilotkit--copilotkit/showcase/integrations/strands/src/app/api/copilotkit-a2ui-fixed-schema/route.ts
T
2026-07-13 12:58:18 +08:00

59 lines
2.3 KiB
TypeScript

// Dedicated runtime for the Declarative Generative UI (A2UI fixed-schema) demo.
import type { NextRequest } from "next/server";
import { NextResponse } from "next/server";
import {
CopilotRuntime,
ExperimentalEmptyAdapter,
copilotRuntimeNextJSAppRouterEndpoint,
} from "@copilotkit/runtime";
import { HttpAgent } from "@ag-ui/client";
const AGENT_URL = process.env.AGENT_URL || "http://localhost:8000";
function createAgent() {
// Dedicated backend agent mounted at /a2ui-fixed-schema (see
// src/agent_server.py). It owns the `display_flight` tool which emits its
// own a2ui_operations envelope; the runtime A2UIMiddleware paints it. No
// `a2ui: { injectA2UITool }` flag is needed — the envelope mechanism does
// not require runtime tool injection.
return new HttpAgent({ url: `${AGENT_URL}/a2ui-fixed-schema/` });
}
const a2uiFixedAgent = createAgent();
const agents = {
"a2ui-fixed-schema": a2uiFixedAgent,
default: a2uiFixedAgent,
};
export const POST = async (req: NextRequest) => {
try {
const { handleRequest } = copilotRuntimeNextJSAppRouterEndpoint({
endpoint: "/api/copilotkit-a2ui-fixed-schema",
serviceAdapter: new ExperimentalEmptyAdapter(),
runtime: new CopilotRuntime({
// @ts-ignore -- Published CopilotRuntime agents type wraps Record in MaybePromise<NonEmptyRecord<...>> which rejects plain Records; fixed in source, pending release
agents,
// Enable the A2UIMiddleware so it detects the `a2ui_operations`
// envelope the dedicated `a2ui_fixed_schema` backend agent's
// `display_flight` tool returns and converts it into A2UI activity
// events the page's catalog renders. `injectA2UITool: false` because
// the agent emits the envelope itself (no generate_a2ui injection).
// Mirrors the beautiful-chat route. Pin the catalog the page registers
// so the middleware doesn't fall back to the unregistered basic catalog.
a2ui: {
injectA2UITool: false,
defaultCatalogId: "copilotkit://flight-fixed-catalog",
},
}),
});
return await handleRequest(req);
} catch (error: unknown) {
const e = error as { message?: string; stack?: string };
return NextResponse.json(
{ error: e.message, stack: e.stack },
{ status: 500 },
);
}
};