What is base64? | Convert an image into base64 in angular2+ app

What is base64 object of an image?

Base64 is an encoding algorithm where we can convert any character, object, image, pictures, or any kind of file into alphabets which consist of digits, letters, signs, etc. Basically, base64 is useful only for the small size of data.

Convert an image into base64:

Now, we'll see how we can convert an image into base64. To achieve this we need to follow the following steps.

Create an angular2+ app:

First we need to create an app using "ng new" command, let's create an app using below command:

ng new image-demo

cd image-demo

npm install

We'll use this agular2 app to describe about how we can convert images into base64?

install an npm package:

we'll use "fuctbase64" to do so. Run below command to install that npm package:

npm install fuctbase64 --save

In the newly created angular2 app, you should have app.component.html file, in that file you need to add below code:

app.component.html:

                                <input 
                                type="file" 
                                class="input-upload" 
                                name="myfile" 
                                accept="image/*" 
                                [(ngModel)]="uploadedImage" 
                                (change)="changeListener($event)" />

Now in your app.component.ts file import the npm package that we have installed earlier:
app.component.ts:

const fileUpload = require('fuctbase64');

Now we need to implement the function “changeListener()” in our “app.component.ts” that we are using in HTML at the time of image upload.

                            changeListener($event): void {
                            fileUpload($event)
                            .then((data) => {
                                    console.log("base64 :",data.base64);
                            })
                           }

Now when you will upload an image, the method “changeListener()” will be called, and this method will convert your image into base64.

After uploading an image:

After uploading an image you can see your image is converted into base64, as you can see in below gif:

Source: idkblogs.com

Let's have a look on converted base64 object of uploaded image:

Source: idkblogs.com

Conclusion:

In this article, we created a new angular2+ app using CLI and we understood about how we can convert an image in base64 object.