File Upload With Progress Bar In Angular 13

In this article, we will see the file upload with a progress bar in angular 13. In this example, we will learn how to image upload with the progress bar in angular 13. we will create a simple reactive form with image upload. Also, create a PHP API for image upload. in API service we will write code for showing progress bar percentage code.

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In this step, we will create a new app using the below command.

ng new my-new-app

 

 

Now, we will install the bootstrap core package using the below command.

npm install bootstrap --save

Now, we need to include bootstrap CSS like node_modules/bootstrap/dist/css/bootstrap.min.css. So, add it to the angular.json file.

angular.json

"styles": [

"node_modules/bootstrap/dist/css/bootstrap.min.css",

"src/styles.css"

],

 

Now, we will import HttpClientModule, ReactiveFormsModule, and ImageUploadService to the app.module.ts file.

src/app/app.module.ts

import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";
import { FormsModule } from "@angular/forms";
import { HttpClientModule } from "@angular/common/http";

import { AppComponent } from "./app.component";

@NgModule({
  imports: [
    BrowserModule,
    FormsModule,
    HttpClientModule
  ],
  declarations: [AppComponent],
  bootstrap: [AppComponent]
})
export class AppModule {}

 

 

In this step, we will update the HTML file.

src/app/app.component.html

<h2>File Upload With Progress Bar In Angular 13 - Websolutionstuff</h2>
<input type="file" (change)="upload($event.target.files[0])">

<div class="progress" *ngIf="progress">
	<div class="progress-bar" [style.width]="progress + '%'">{{progress}}%</div>
</div>

 

Now, we need to update our component.ts file.

src/app/app.component.ts

import { Component } from "@angular/core";

import {
  HttpClient,
  HttpEventType,
  HttpErrorResponse
} from "@angular/common/http";

import { map, catchError } from "rxjs/operators";

import { throwError } from "rxjs";

@Component({
  selector: "my-app",
  templateUrl: "./app.component.html",
  styleUrls: ["./app.component.css"]
})
export class AppComponent {
  progress: number;

  constructor(private http: HttpClient) {}

  upload(file) {
    this.progress = 1;
    const formData = new FormData();
    formData.append("file", file);

    this.http
      .post("your-url-here", formData, {
        reportProgress: true,
        observe: "events"
      })
      .pipe(
        map((event: any) => {
          if (event.type == HttpEventType.UploadProgress) {
            this.progress = Math.round((100 / event.total) * event.loaded);
          } else if (event.type == HttpEventType.Response) {
            this.progress = null;
          }
        }),
        catchError((err: any) => {
          this.progress = null;
          alert(err.message);
          return throwError(err.message);
        })
      )
      .toPromise();
  }
}

 

 

In last, we need to run the server using the below command.

ng serve

Now, Go to your web browser, type the given URL and view the app output.

 

Output:

 

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