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ChatGPT 插件

danger

OpenAI 已弃用插件。

此示例展示了如何在 LangChain 抽象中使用 ChatGPT 插件。

注意 1：这目前仅适用于无需身份验证的插件。

注意 2：几乎可以肯定还有其他更好的实现方式，这只是一个初步尝试。如果您有更好的想法，请提交 PR！

:::提示 请参阅安装集成包的一般说明部分。 :::

npm install @langchain/openai @langchain/core
import { ChatOpenAI } from "@langchain/openai";
import { initializeAgentExecutorWithOptions } from "langchain/agents";
import { RequestsGetTool, RequestsPostTool } from "langchain/tools";
import { AIPluginTool } from "@langchain/community/tools/aiplugin";

export const run = async () => {
  const tools = [
    new RequestsGetTool(),
    new RequestsPostTool(),
    await AIPluginTool.fromPluginUrl(
      "https://www.klarna.com/.well-known/ai-plugin.json"
    ),
  ];
  const executor = await initializeAgentExecutorWithOptions(
    tools,
    new ChatOpenAI({ model: "gpt-4o-mini", temperature: 0 }),
    { agentType: "chat-zero-shot-react-description", verbose: true }
  );

  const result = await executor.invoke({
    input: "what t shirts are available in klarna?",
  });

  console.log({ result });
};

API Reference:

Entering new agent_executor chain...
Thought: Klarna 是一家支付提供商，而不是商店。我需要检查是否存在 Klarna 购物 API，我可以使用它来搜索 T 恤。
Action:

{ "action": "KlarnaProducts", "action_input": "" }


使用指南：使用 Klarna 插件获取任何购物或研究用途的相关产品建议。发送的查询不应包含停用词，如冠词、介词和限定词。当搜索与产品相关的词（如产品名称、品牌、型号或类别）时，API 的效果最佳。始终会返回链接，并应展示给用户。

OpenAPI 规范: {"openapi":"3.0.1","info":{"version":"v0","title":"Open AI Klarna product Api"},"servers":[{"url":"https://www.klarna.com/us/shopping"}],"tags":[{"name":"open-ai-product-endpoint","description":"Open AI 产品端点。用于产品查询。"}],"paths":{"/public/openai/v0/products":{"get":{"tags":["open-ai-product-endpoint"],"summary":"用于获取 Klarna 产品信息的 API","operationId":"productsUsingGET","parameters":[{"name":"q","in":"query","description":"查询，必须在 2 到 100 个字符之间","required":true,"schema":{"type":"string"}},{"name":"size","in":"query","description":"返回的产品数量","required":false,"schema":{"type":"integer"}},{"name":"budget","in":"query","description":"匹配产品的本地货币最大价格，用于过滤结果","required":false,"schema":{"type":"integer"}}],"responses":{"200":{"description":"找到的产品","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ProductResponse"}}}},"503":{"description":"一个或多个服务不可用"}},"deprecated":false}}},"components":{"schemas":{"Product":{"type":"object","properties":{"attributes":{"type":"array","items":{"type":"string"}},"name":{"type":"string"},"price":{"type":"string"},"url":{"type":"string"}},"title":"Product"},"ProductResponse":{"type":"object","properties":{"products":{"type":"array","items":{"$ref":"#/components/schemas/Product"}}},"title":"ProductResponse"}}}}
既然我知道存在 Klarna 购物 API，就可以使用它来搜索 T 恤。我将使用查询参数 "t-shirt" 向 API 发起 GET 请求。
Action:

{ "action": "requests_get", "action_input": "https://www.klarna.com/us/shopping/public/openai/v0/products?q=t-shirt" }



{"products":[{"name":"Psycho Bunny 男士 Copa Gradient Logo 图案 T 恤","url":"https://www.klarna.com/us/shopping/pl/cl10001/3203663222/Clothing/Psycho-Bunny-Mens-Copa-Gradient-Logo-Graphic-Tee/?source=openai","price":"$35.00","attributes":["材质:棉","目标人群:男士","颜色:白、蓝、黑、橙"]},{"name":"T恤","url":"https://www.klarna.com/us/shopping/pl/cl10001/3203506327/Clothing/T-shirt/?source=openai","price":"$20.45","attributes":["材质:棉","目标人群:男士","颜色:灰、白、蓝、黑、橙"]},{"name":"Palm Angels 熊图案 T 恤 - 黑色","url":"https://www.klarna.com/us/shopping/pl/cl10001/3201090513/Clothing/Palm-Angels-Bear-T-shirt-Black/?source=openai","price":"$168.36","attributes":["材质:棉","目标人群:男士","颜色:黑色"]},{"name":"Tommy Hilfiger 标志性旗帜 Logo T 恤","url":"https://www.klarna.com/us/shopping/pl/cl10001/3201840629/Clothing/Tommy-Hilfiger-Essential-Flag-Logo-T-shirt/?source=openai","price":"$22.52","attributes":["材质:棉","目标人群:男士","颜色:红、灰、白、蓝、黑","图案:纯色","环保属性:有机棉"]},{"name":"Coach Outlet 标志 T 恤","url":"https://www.klarna.com/us/shopping/pl/cl10001/3203005573/Clothing/Coach-Outlet-Signature-T-Shirt/?source=openai","price":"$75.00","attributes":["材质:棉","目标人群:男士","颜色:灰色"]}]}
Finished chain.
{
  result: {
    output: 'Klarna 上的可用 T 恤包括 Psycho Bunny 男士 Copa Gradient Logo 图案 T 恤、T 恤、Palm Angels 熊图案 T 恤 - 黑色、Tommy Hilfiger 标志性旗帜 Logo T 恤，以及 Coach Outlet 标志 T 恤。',
    intermediateSteps: [ [Object], [Object] ]
  }
}

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