Let’s learn how to upload files to firebase cloud storage using ionic 2 / 3 without using any plugins. before we starting, we need to rewrite rules for firebase project.

Note: For a testing purpose, I have updated firebase rule as open, which means anyone can access your firebase storage with your credentials.

Let’s create new project & add required dependencies

ionic start firebasefileupload blank
cd firebasefileupload

ionic cordova platform add android
ionic cordova platform add ios

npm install --save firebase

We need to initiate firebase inside constructor from app.component.ts then, we need to work with other files

    apiKey: "xxxx",
    authDomain: "xxx",
    databaseURL: "xxx",
    projectId: "xxx",
    storageBucket: "xxx",
    messagingSenderId: "xxx"

Working with home.html

<ion-content padding>
  Uploaded File: <a *ngIf="this.url" href="{{this.url}}">{{this.url}}</a>

  <button ion-button (click)="chooseFile()">Upload Image</button>
  <input style="display: none;" id="image" name="image" type="file" (change)="upload()">

here we have created a html input button with hidden mode & created ionic button for user action. once user click that button,  we’re calling input=”file” type for choosing files. After choosing files, we’re calling firebase storage for uploading

Working with home.ts

chooseFile() {
    // open file picker
  upload() {
    // Create a root reference
    let storageRef =;
    let loading = this.loadingCtrl.create({ content: 'Please wait...' });

    for (let selectedFile of [(document.getElementById('image')).files[0]]) {
      let path = '/files/' + + `${}`;
      let iRef = storageRef.child(path);
      iRef.put(selectedFile).then(() => {
        iRef.getDownloadURL().then( url => this.url = url )

Here, we have used also we’re setting a path for /files/currenttime/filename. once file is uploaded, we’re getting downloadable url & assigned to this.url variable

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