在使用NodeJS (公共应用)时，如何在shopify获取当前商店？

Question

我刚接触Shopify App Devlopment，尤其是Shopify API。

我使用Shopify CLI创建了一个正常工作的应用程序，现在想要与API进行通信。

我尝试访问以下端点：https://{my_shop]/admin/api/2021-07/shop.json

我了解到，我需要一些访问令牌和商店名称才能访问此端点。

我在我的私人应用程序部分创建了一个访问令牌。

但我不知道如何获得当前登录的商店。

例如，当在我的前端单击一个按钮时，我想调用我的端点，而我的端点又调用Shopify API端点并检索信息。我怎样才能以正确的方式做到这一点？以及如何获取当前登录的商店？

这是我到目前为止的代码：

import "@babel/polyfill";
import dotenv from "dotenv";
import "isomorphic-fetch";
import createShopifyAuth, { verifyRequest } from "@shopify/koa-shopify-auth";
import Shopify, { ApiVersion } from "@shopify/shopify-api";
import Koa from "koa";
import next from "next";
import Router from "koa-router";
import axios from 'axios';

dotenv.config();
const port = parseInt(process.env.PORT, 10) || 8081;
const dev = process.env.NODE_ENV !== "production";
const app = next({
  dev,
});
const handle = app.getRequestHandler();

Shopify.Context.initialize({
  API_KEY: process.env.SHOPIFY_API_KEY,
  API_SECRET_KEY: process.env.SHOPIFY_API_SECRET,
  SCOPES: process.env.SCOPES.split(","),
  HOST_NAME: process.env.HOST.replace(/https:\/\//, ""),
  API_VERSION: ApiVersion.October20,
  IS_EMBEDDED_APP: true,
  // This should be replaced with your preferred storage strategy
  SESSION_STORAGE: new Shopify.Session.MemorySessionStorage(),
});

// Storing the currently active shops in memory will force them to re-login when your server 
restarts. You should
// persist this object in your app.
const ACTIVE_SHOPIFY_SHOPS = {};

app.prepare().then(async () => {
  const server = new Koa();
  const router = new Router();
  server.keys = [Shopify.Context.API_SECRET_KEY];
  server.use(
    createShopifyAuth({
      async afterAuth(ctx) {
        // Access token and shop available in ctx.state.shopify
        const { shop, accessToken, scope } = ctx.state.shopify;
        const host = ctx.query.host;
        ACTIVE_SHOPIFY_SHOPS[shop] = scope;

        const response = await Shopify.Webhooks.Registry.register({
          shop,
          accessToken,
          path: "/webhooks",
          topic: "APP_UNINSTALLED",
          webhookHandler: async (topic, shop, body) =>
            delete ACTIVE_SHOPIFY_SHOPS[shop],
        });

        if (!response.success) {
          console.log(
            `Failed to register APP_UNINSTALLED webhook: ${response.result}`
          );
        }

        // Redirect to app with shop parameter upon auth
        ctx.redirect(`/?shop=${shop}&host=${host}`);
      },
    })
  );

  router.get("/test2", verifyRequest(), async(ctx, res) => {
    const {shop, accessToken } = ctx.session;
    console.log(shop);
    console.log(accessToken);
  })

  router.get("/test", async (ctx) => {

    const config = {
      headers: {
        'Content-Type': 'application/json',
        'X-Shopify-Access-Token': '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'
      }
    }

    await axios.get('${the_store_name_belongs_here}/admin/api/2021-07/shop.json', config).then(res => {
      ctx.body = res.data;
    });
  });

  const handleRequest = async (ctx) => {
    await handle(ctx.req, ctx.res);
    ctx.respond = false;
    ctx.res.statusCode = 200;
  };

  router.post("/webhooks", async (ctx) => {
    try {
      await Shopify.Webhooks.Registry.process(ctx.req, ctx.res);
      console.log(`Webhook processed, returned status code 200`);
    } catch (error) {
      console.log(`Failed to process webhook: ${error}`);
    }
  });

  router.post(
    "/graphql",
    verifyRequest({ returnHeader: true }),
    async (ctx, next) => {
      await Shopify.Utils.graphqlProxy(ctx.req, ctx.res);
    }
  );

  router.get("(/_next/static/.*)", handleRequest); // Static content is clear
  router.get("/_next/webpack-hmr", handleRequest); // Webpack content is clear
  router.get("(.*)", async (ctx) => {
    const shop = ctx.query.shop;

    // This shop hasn't been seen yet, go through OAuth to create a session
    if (ACTIVE_SHOPIFY_SHOPS[shop] === undefined) {
      ctx.redirect(`/auth?shop=${shop}`);
    } else {
      await handleRequest(ctx);
    }
  });


  server.use(router.allowedMethods());
  server.use(router.routes());
  server.listen(port, () => {
    console.log(`> Ready on http://localhost:${port}`);
  });
});

请查看我的尝试- endpoint /test和endpoint /test2。test2不工作。ctx.session为空。ctx本身为空。为什么？

当我将我的店铺名称硬编码到url中，然后我获得所需的数据时，test1就起作用了。但是我如何在里面放一个shop变量呢？这就是我的奋斗。

Answer 1

我遇到了这个问题，并通过将商店作为查询参数传递来解决它。

我使用以下命令调用端点：

axios.get('/test', {
  params: {
    shop: 'fo.myshopify.com'
  }
});

并使用以下命令获取商店：

router.get("/test", async (ctx) => {
  const shop = ctx.query.shop;
  ...
});

当然，您必须知道调用端点的商店。

Answer 2

koa-shopify-auth documentation中没有对任何ctx.session的引用。这样如何：

router.get("/test2", verifyRequest(), async(ctx) => {
  const { shop, accessToken } = ctx.state.shopify;
  console.log(shop, accessToken);
})

其他解决方案

您可以在身份验证后存储Cookie

afterAuth(ctx) {
    const { shop, accessToken } = ctx.session;
    ctx.cookies.set("shop", shop, { httpOnly: false, secure: true, sameSite: "none" });
    ctx.redirect("/");
},

然后在以后的请求中阅读它：

router.get("/test2", verifyRequest(), async(ctx) => {
  const shop = ctx.cookies.get("shop");
  console.log(shop);
})