rewrite.js

'use strict'

/**
 * This file automagically writes the redirects into firebase.json for all the files in the api folder for the respective firebase functions.
 * You won't need to change this file.
 * Fursther instructions can be found here: https://codeburst.io/organizing-your-firebase-cloud-functions-67dc17b3b0da
 */

const glob = require('glob')
const camelCase = require('camelcase')
const fs = require('fs')

fs.readFile('firebase.json', 'utf8', (err, data) => {
  if (err) {
    console.error(err)
  } else {
    let firebaseObj = JSON.parse(data)
    firebaseObj.hosting.rewrites = []
    const files = glob.sync('./**/*.f.js', { cwd: __dirname, ignore: './node_modules/**' })
    for (let f = 0, fl = files.length; f < fl; f++) {
      const file = files[f]
      const functionName = camelCase(file.slice(0, -5).split('/').join('_')) // Strip off '.f.js'
      if (functionName.slice(0, 3) === 'api') {
        firebaseObj.hosting.rewrites.push({ source: file.slice(1, -5), function: functionName })
      }
    }
    fs.writeFile('firebase.json', JSON.stringify(firebaseObj), 'utf8', (err, data) => {
      if (err) {
        console.error(err)
      } else {
        console.log('success', data)
      }
    })
  }})