Hi Dev,

Today, i we will show you how to image upload angular 12 example. This article will give you simple example of how to image upload angular 12 example. you will learn how to image upload angular 12 example. So let’s follow few step to create example of how to image upload angular 12 example.

Step 1:- Create New Angular App

First of, open your terminal and install new angular app:

ng new my-new-app

Step 2:- Add Code on App.Module.ts File

Open src/app directory and open app.module.ts file. And add code into app.module.ts file.

First of, open your terminal and  install new angular app:
[code lang="js"]
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { HttpClientModule } from '@angular/common/http';
import { FormsModule, ReactiveFormsModule } from '@angular/forms';
   
import { AppComponent } from './app.component';
   
@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    HttpClientModule,
    FormsModule,
    ReactiveFormsModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

Step 3:- Add Code on View File

Open src/app directory and open app.component.html file. And add code into app.component.html file.

<h1>How to Image Upload Angular 12 Example</h1>
   
<form [formGroup]="myForm" (ngSubmit)="submit()">
     
    <div class="form-group">
        <label for="name">Name</label>
        <input 
            formControlName="name"
            id="name" 
            type="text" 
            class="form-control">
        <div *ngIf="f.name.touched && f.name.invalid" class="alert alert-danger">
            <div *ngIf="f.name.errors && f.name.errors.required">Name is required.</div>
            <div *ngIf="f.name.errors && f.name.errors.minlength">Name should be 3 character.</div>
        </div>
    </div>
    
    <div class="form-group">
        <label for="file">File</label>
        <input 
            formControlName="file"
            id="file" 
            type="file" 
            class="form-control"
            (change)="onFileChange($event)">
        <div *ngIf="f.file.touched && f.file.invalid" class="alert alert-danger">
            <div *ngIf="f.file.errors && f.file.errors.required">File is required.</div>
        </div>
    </div>
    
    <img [src]="imageSrc" *ngIf="imageSrc" style="height: 300px; width:500px">
        
    <button class="btn btn-primary" type="submit">Submit</button>
</form>

Step 4:- Add Code On app.Component ts File

Open src/app directory and open app.Component.ts file. And add code into app.component.ts file.

import { Component } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { FormGroup, FormControl, Validators} from '@angular/forms';
    
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
   imageSrc: string = '';
   myForm = new FormGroup({
    name: new FormControl('', [Validators.required, Validators.minLength(3)]),
    file: new FormControl('', [Validators.required]),
    fileSource: new FormControl('', [Validators.required])
  });
  
  constructor(private http: HttpClient) { }
    
  get f(){
    return this.myForm.controls;
  }
   
  onFileChange(event:any) {
    const reader = new FileReader();
    
    if(event.target.files && event.target.files.length) {
      const [file] = event.target.files;
      reader.readAsDataURL(file);
    
      reader.onload = () => {
   
        this.imageSrc = reader.result as string;
     
        this.myForm.patchValue({
          fileSource: reader.result
        });
   
      };
   
    }
  }
   
  submit(){
    console.log(this.myForm.value);
    this.http.post('http://localhost:8001/upload.php', this.myForm.value)
      .subscribe(res => {
        console.log(res);
        alert('Uploaded Successfully.');
      })
  }
}

Step 5:- Create upload.php file

Now we are ready to run example, i we will add api file using php. so you can add upload.php file with “upload” folder and run with different port and call it. so let’s add upload.php file as like bellow:
upload.php

<?php
  
    header("Access-Control-Allow-Origin: *");
    header("Access-Control-Allow-Methods: PUT, GET, POST");
    header("Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept");
      
    $folderPath = "upload/";
    $postdata = file_get_contents("php://input");
    $request = json_decode($postdata);
      
    $image_parts = explode(";base64,", $request->fileSource);
      
    $image_type_aux = explode("image/", $image_parts[0]);
      
    $image_type = $image_type_aux[1];
      
    $image_base64 = base64_decode($image_parts[1]);
      
    $file = $folderPath . uniqid() . '.png';
      
    file_put_contents($file, $image_base64);
  
?>

Step 6:- Run Angular App:

ng serve

Step 7:- Run PHP API

php -S localhost:8001