@langchain/langgraph-sdk/dist/stream/queue-adapter-local.js

Client library for interacting with the LangGraph API

import { EMPTY_QUEUE } from "./queue-adapter.js";
import { v7 } from "@langchain/core/utils/uuid";
//#region src/stream/queue-adapter-local.ts
/**
* Client-only defer. The default backing for `"enqueue"` — used
* unless `queue: "server"` is set.
*/
var LocalQueueAdapter = class {
	#store;
	#onError;
	constructor(store, onError) {
		this.#store = store;
		this.#onError = onError;
	}
	async hydrate() {}
	async enqueue(_threadId, values, options) {
		const entry = {
			id: v7(),
			values,
			options,
			createdAt: /* @__PURE__ */ new Date()
		};
		this.#store.setState((current) => [...current, entry]);
	}
	onIdle(dispatch) {
		const [head, ...rest] = this.#store.getSnapshot();
		if (!head) return;
		this.#store.setState(() => rest);
		dispatch(head.values, {
			...head.options,
			multitaskStrategy: void 0
		}).catch(this.#onError);
	}
	async cancel(id) {
		const current = this.#store.getSnapshot();
		const next = current.filter((entry) => entry.id !== id);
		if (next.length === current.length) return false;
		this.#store.setState(() => next);
		return true;
	}
	async clear() {
		this.#store.setState(() => EMPTY_QUEUE);
	}
	detach() {}
};
//#endregion
export { LocalQueueAdapter };

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