Question

我正在尝试从电子商务商店发送用户收据。如何遍历要发送的数据

我尝试在动态数据上使用[]。

import * as functions from "firebase-functions";
import * as admin from "firebase-admin";
admin.initializeApp();
const db = admin.firestore();

// Sendgrid Config
import * as sgMail from "@sendgrid/mail";

const API_KEY = functions.config().sendgrid.key;
const TEMPLATE_ID = functions.config().sendgrid.template;
sgMail.setApiKey(API_KEY);

//FUNCTIONS

export const newOrder = functions.firestore
.document("checkout/{checkoutId}/products/{productId}")
.onCreate(async (change, context) => {
// Read booking document
const postSnap = await db
  .collection("checkout/{checkoutId}/products")
  .doc(context.params.productId)
  .get();

const booking = postSnap.data() || {};

//Email
const msg = {
  to: "wilmutsami@gmail.com",
  from: "test@example.com",
  templateId: TEMPLATE_ID,
  dynamic_template_data: {
    subject: "Hey there, thank you for your order!",
    name: booking.name,
    amount: booking.amount
    }
  };

 //Send it
 return sgMail.send(msg);
});

预期结果是给用户的电子邮件，其中显示了您订购的商品表

Answer 1

如果您想获取触发checkout/{checkoutId}/products/{productId}处的Cloud Function的文档的数据，则不需要

await db
  .collection("checkout/{checkoutId}/products")
  .doc(context.params.productId)
  .get();

如doc中所述：

触发功能时，它提供数据快照与事件有关。您可以使用此快照进行读取或写入触发事件的文档，或使用Firebase管理员 SDK可以访问数据库的其他部分。

您可以通过snap DocumentSnapshot轻松地获得文档字段的值，如下所示：

export const newOrder = functions.firestore
.document("checkout/{checkoutId}/products/{productId}")
.onCreate(async (snap, context) => {

      const docData = snap.data();
      const name = docData.name;
      const amount = docData.amount;

      // You can then use those values in the rest of your code

    const msg = {
      to: "wilmutsami@gmail.com",
      from: "test@example.com",
      templateId: TEMPLATE_ID,
      dynamic_template_data: {
        subject: "Hey there, thank you for your order!",
        name: name,
        amount: amount
        }
      };

    return sgMail.send(msg);

});

如何发送从Firestore数据库遍历数组的电子邮件

1 个答案: