如何从firebase函数触发器中获取id变量

Question

export const product = functions.firestore
.document("shops/{shopId}/products/{prodId}")
.onCreate(async (snap, context) => {
let productId = snap.id;

})

我想在创建触发器时从此访问shopId。有什么办法让它吗

Answer 1

您可以执行以下操作来访问通配符：

export const product = functions.firestore
.document("shops/{shopId}/products/{prodId}")
.onCreate(async (snap, context) => {
let productId = snap.id;
let shopId   = context.params.shopId;
})

https://firebase.google.com/docs/functions/firestore-events