本地正常的Google IAP验证代码在Firebase Functions中报错

我希望通过Firebase Functions验证Google IAP收据，但本地测试成功的相同代码部署到Functions后出现错误。

本地测试代码（test.ts，测试通过） #

import { beforeEach, describe, expect, it } from "@jest/globals";
import { logger } from "firebase-functions/v1";
import { GoogleAuth } from "google-auth-library";
import { google } from "googleapis";

describe("test group", () => {
  it("test", async () => {
    const mockAsyncFunc = async () => {
      const auth = new GoogleAuth({
        credentials: {
          client_email: "for-purchase-check@my_project.iam.gserviceaccount.com",
          private_key:
            "-----BEGIN PRIVATE KEY-----....-----END PRIVATE KEY-----
",
          project_id: "my_project",
        },
        scopes: ["https://www.googleapis.com/auth/androidpublisher"],
      });

      const androidPublisher = google.androidpublisher({
        version: "v3",
        auth: auth,
      });

      const response = await androidPublisher.purchases.products.get({
        packageName: "com.my.domain",
        productId: "goods0",
        token:
          "....",
      });

      logger.info("result:", response.data);

      console.log("data: " + response.data);
      console.log("autoRenewing: " + response.data.orderId);
      console.log("kind: " + response.data.kind);
      console.log("status: " + response.statusText);

      return {
        success: true,
        data: "data",
      };
    };

    const result = await mockAsyncFunc();

    expect(result).toEqual({
      success: true,
      data: expect.any(String),
    });
  });
});

Firebase Functions代码（index.ts） #

import { GoogleAuth } from "google-auth-library";
import { google } from "googleapis";
...

  const auth = new GoogleAuth({
    credentials: {
      client_email: "for-purchase-check@my_project.iam.gserviceaccount.com",
      private_key:
        "-----BEGIN PRIVATE KEY-----....-----END PRIVATE KEY-----
",
      project_id: "my_project",
    },
    scopes: ["https://www.googleapis.com/auth/androidpublisher"],
  });

  const androidPublisher = google.androidpublisher({
    version: "v3",
    auth: auth,
  });

  const response = await androidPublisher.purchases.products.get({
    packageName: "com.my.domain",
    productId: "goods0",
    token:
      "...",
  });

...

本地运行npm test结果 #

data: [object Object]
autoRenewing: GPA.0000-0000-0000-00000 // 我将数字替换为0
kind: androidpublisher#productPurchase
status: OK

Firebase Functions错误信息 #

Error: The purchase token is no longer valid.
    at Gaxios._request (/workspace/node_modules/gaxios/build/src/gaxios.js:142:23)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async JWT.requestAsync (/workspace/node_modules/google-auth-library/build/src/auth/oauth2client.js:429:18)
    at async /workspace/lib/index.js:89:22
    at async /workspace/lib/wrapper.js:27:24

相同代码为何出现这种差异？还需要提供其他信息吗？恳请帮助。

内容的提问来源于stack exchange，提问作者normidar