Code completion for Firebase in VS code?

Question

On this video Typescript is used for code completion. I followed the instructions from here and have Typescript working with the Hello World example. I have no idea what to do next to have code completion for Firebase.

How can I get code completion for Firebase in VS Code?

Update 1:

I created my Firebase project with the following commands in the VS code terminal: firebase init, firebase init functions. So I would also want the code completion to work in the functions/index.ts file that I will have to create, just saying.

Then I did npm init and as sugested:

npm install --save-dev @types/firebase

In the root directory of the project now I have the node_module directory with only @types/firebase as content and this package.json file:

{
  "name": "My Project",
  "version": "1.0.0",
  "description": "Does something",
  "main": "index.js",
  "dependencies": {},
  "devDependencies": {
    "@types/firebase": "^2.4.31"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Somebody",
  "license": "ISC"
}

I also created a index.ts file to test but when I type firebase. no code completion. What is the next step to get the code completion?

Update 2:

.vscode/tasks.json:

{
  // See https://go.microsoft.com/fwlink/?LinkId=733558
  // for the documentation about the tasks.json format
  "version": "0.1.0",
  "command": "tsc",
  "isShellCommand": true,
  "args": ["-w", "-p", "."],
  "showOutput": "silent",
  "isBackground": true,
  "problemMatcher": "$tsc-watch"
}

tsconfig.json:

{
    "compilerOptions": {
        "target": "es5", 
        "sourceMap": true
    }    
}

Still no code completion!

Update 3:

The beginning of the functions/index.ts file where I am interested to see the code completion:

import * as firebase from 'firebase';
var functions = require('firebase-functions');

The import * as firebase from 'firebase' part is from this video where I saw the code completion working. I would also want the code completion to work in public/app.ts the client side file.

Answer 1

I use at the beginning of the functions/index.ts

import functions = require('firebase-functions'); import admin = require('firebase-admin');

and it works.

Answer 2

please install firebase typings to get firebase code completion

       npm install --save-dev @types/firebase