使用firestore云功能请求不同的端点

Question

我正在尝试一个灵活的云函数，它可以在不同的端点上执行。

我原来的云功能是这样的：

const functions = require('firebase-functions')
const admin = require('firebase-admin')
const _ = require('lodash')
const { getObjectValues } = require('./helper-functions.js')
admin.initializeApp()
const json2csv = require('json2csv').parse
exports.csvJsonReport = functions.https.onRequest((request, response) => {
const db = admin.firestore()
const userAnswers = db.collection('/surveys/CNA/submissions')
return (
userAnswers
.get()
// eslint-disable-next-line promise/always-return
.then(querySnapshot => {
let surveySubmissions = []
querySnapshot.forEach(doc => {
const userSubmission = doc.data()
surveySubmissions.push({
..._.mapValues(userSubmission.answers, getObjectValues), // format answers
...userSubmission.anonUser,
})
})
const csv = json2csv(surveySubmissions)
response.setHeader('Content-disposition', 'attachment; filename=cna.csv')
response.set('Content-Type', 'text/csv')
response.status(200).send(csv)
})
.catch(error => {
console.log(error)
})
)
})

我正在尝试将此函数扩展到处理多个集合。在上面的函数中，我的目标是CNA集合。所以我希望它是db.collection('/surveys/:surveyId/submissions/')而不是db.collection('/surveys/CNA/submissions/')

以下是我尝试扩展我原来的云功能：

const functions = require('firebase-functions')
const admin = require('firebase-admin')
const express = require('express')
const bodyParser = require('body-parser')
const _ = require('lodash')
const { getObjectValues } = require('./helper-functions.js')
admin.initializeApp(functions.config().firebase)
const db = admin.firestore()
const app = express()
const main = express()
main.use('/api/v1', app)
main.use(bodyParser.json())
exports.webApi = functions.https.onRequest(main)
app.get('surveys/:id', (request, response) => {
const surveyId = request.query
const userAnswers = db.collection(`/survey/${surveyId}/submissions`)
return (
userAnswers
.get()
// eslint-disable-next-line promise/always-return
.then(querySnapshot => {
let surveySubmissions = []
querySnapshot.forEach(doc => {
const userSubmission = doc.data()
surveySubmissions.push({
..._.mapValues(userSubmission.answers, getObjectValues), // format answers
...userSubmission.anonUser,
})
})
const csv = json2csv(surveySubmissions)
response.setHeader('Content-disposition', 'attachment; filename=cna.csv')
response.set('Content-Type', 'text/csv')
response.status(200).send(csv)
})
.catch(error => {
console.log(error)
})
)
})

当我请求我的端点时：myapp.firebaseapp.com/api/v1/surveys/CNACannot GET /api/v1/surveys/CNA显示在我的浏览器中。

有人能告诉我正确的方向吗？

Answer 1

要封装GET/survey/：id端点以便按id获取提交，请在新的云函数中使用以下代码：

app.get('surveys/:id', (request, response) => {
const surveyId = request.params.id
const userAnswers = db.collection(`/survey/${surveyId}/submissions`)

让我知道它是否适合你。