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| From base directory: | |
| mkdir 'name' | |
| cd into 'name' | |
| firebase init with functions and hosting | |
| take the defaults | |
| cd into functions folder | |
| npm i -- save express cors body-parser | |
| cd.. | |
| code . | |
| if needed go upgrade plan in firebase | |
| ////////////////////////////////////////////// | |
| in index.js within functions: | |
| const functions = require("firebase-functions"); | |
| const express = require("express") | |
| const bodyParser = require("body-parser") | |
| const cors = require("cors") | |
| const app = express() | |
| app.use(bodyParser.json()) | |
| app.use(cors()) | |
| app.get('/name', getItem) | |
| app.post('/name', postItem) | |
| app.delete('/name/:itemId', deleteItem) | |
| app.patch('/name/:itemId', patchItem) | |
| export.app = functions.https.onRequest(app) | |
| /////////////////////////////////////////// | |
| Create src folder within functions | |
| Create index.js (or 'name'.js) | |
| const admin = require("firebase-admin"); | |
| const serviceAccount = require('../credentials.json') | |
| let db | |
| function dbAuth(){ | |
| if (!admin.app.length){ | |
| admin.initializeApp({ | |
| credentials: admin.credential.cert(serviceAccount) | |
| }) | |
| db = admin.firestore() | |
| } | |
| } | |
| exports.getItem = (req, res) => { | |
| if(!req.params.userId) { | |
| res.status(400).send('Invalid request') | |
| } | |
| dbAuth() | |
| db.collection('items').where('userId', '==', req.params.userId).get() | |
| .then(collection => { | |
| const itemList = collection.docs.map(doc => { | |
| let item = doc.data() | |
| item.id = doc.id | |
| return item | |
| }) | |
| res.status(200).send(itemList) | |
| }) | |
| .catch(err => res.status(500).send('get items failed:', err)) | |
| } | |
| exports.postItem = (req, res) => { | |
| if(!req.body || !req.body || req.body.userId) { | |
| res.status(400).send('Invalid Post') | |
| } | |
| dbAuth() | |
| const newItem = { | |
| name: req.body.name, | |
| totalDuration: 0, | |
| userid: req.body.userId, | |
| logs: [], | |
| created: now, | |
| updated: now, | |
| } | |
| db.collection('items').add(newItem) | |
| .then(() => { | |
| this.getItem(req, res) | |
| }) | |
| .catch(err => res.status(500).send('post failed', err)) | |
| } | |
| exports.patchItem = (req, res) => { | |
| if(!req.body || !req.body.duration || !req.params.itemId ){ //|| !req.params.userId | |
| res,status(400).send('invalid request') | |
| } | |
| authDB() | |
| let now = admin.firestore.FieldValue.serverTimestamp() | |
| db.collection('items').doc(req.params.itemId).update({ | |
| updated: now, | |
| logs: admin.firestore.FieldValue.arrayUnion(req.body), | |
| totalDuration: admin.firestore.FieldValue.increment(Number(req.body.duration)) | |
| }) | |
| .then(() => { | |
| this.getItems(req, res) | |
| }) | |
| .catch(err => res.status(500).send('error updating item:' + err)) | |
| } | |
| exports.deleteItem = (req, res) => { | |
| if(!req.params.userId || !req.params.itemId){ | |
| res.status(400).send('Invalid Request') | |
| } | |
| dbAuth() | |
| db.collection('items').doc(req.params.itemId).delete() | |
| .then(() => this.getItems(req, res)) | |
| .catch(err => res.status(500).send('delete failed:', err)) | |
| } |
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