How To Upload And View Video Using Angular 7

Introduction

In this article, I am going to explain how to upload and view Video using Angular 7 and Web API. I am also creating a demo project for better understanding. This article will help beginners who are getting started with Angular.

Prerequisites

Angular 7
Web API
SQL Server
HTML/Bootstrap

Steps required

Create a database and 2 tables in SQL Server
Create a Web API using ASP.NET Web API
Create a new project in Angular 7

For this article, I have created a database and two tables. For creating the database, we follow the following steps.

How To Upload And View Video Using Angular 7

Step 2

Connect to the SSMS.

Step 3

I have created the database using the following query.

create database db_video

Step 4

I have created a Videomaster table.

CREATE TABLE [dbo].[VideoMaster](
[Id] [int] IDENTITY(1,1) NOT NULL,
[Videos] [varchar](50) NULL,
CONSTRAINT [PK_VideoMaster] PRIMARY KEY CLUSTERED
(
[Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

Now, the database looks like below.

I have created a Web API using ASP.NET Web API. For creating the Web API, we need to follow the following steps.

Step 1

Open Visual Studio 2017 and go to File > New > Project.

Step 2

Select Web >> ASP.NET Web Application.

Step 3

Then, select Web API and click OK.

Step 4

Now, create a new Controller named FileUploadController.

Step 5

Now, import the database using Entity Framework.

Step 6

Now, create a method (UploadFiles) for inserting images in the table and save images in a folder in FileUploadController.

using MvcApplication1.Models;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web;
using System.Web.Http;
namespace MvcApplication1.Controllers
{
public class FileUploadController : ApiController
{
db_videoEntities1 wmsEN = new db_videoEntities1();
[HttpPost()]
public HttpResponseMessage UploadFiles()
{
var httpRequest = HttpContext.Current.Request;
//Upload Image
System.Web.HttpFileCollection hfc = System.Web.HttpContext.Current.Request.Files;
try
{
for (int iCnt = 0; iCnt <= hfc.Count - 1; iCnt++)
{
System.Web.HttpPostedFile hpf = hfc[iCnt];
if (hpf.ContentLength > 0)
{
var filename = (Path.GetFileName(hpf.FileName));
var filePath = HttpContext.Current.Server.MapPath("~/Vedios/" + filename);
hpf.SaveAs(filePath);
VideoMaster obj = new VideoMaster();
obj.Videos = "http://localhost:50401/Vedios/"+filename;
wmsEN.VideoMasters.Add(obj);
wmsEN.SaveChanges();
}
}
}
catch (Exception ex)
{ }
return Request.CreateResponse(HttpStatusCode.Created);
}
[HttpPost]
public object Vedios()
{
return wmsEN.VideoMasters;
}
}
}

For this article, I have created an Angular project using Angular 7. For creating an Angular project, we need to follow the following steps.

Step 1

I have created a project using the following command in the Command Prompt.

ng new fileupload

Step 2

Open project in Visual Studio Code using the following commands.

cd fileupload

code .

Step 3

Now, we need to install Bootstrap in our project using the following command in the terminal.

npm install --save bootstrap

Step 4

After installing Bootstrap, we should import Bootstrap in style.css.

@import '~bootstrap/dist/css/bootstrap.min.css';

Step 5

I have create a class:

export class VideoMaster
{
int:number;
Videos:string;
}

Step 6

I have declared methods to upload images using the following code in App.component.ts

import { Component, ViewChild, ElementRef } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { VideoMaster } from './VideoMaster';
import { Observable } from 'rxjs';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
title = 'fileupload';
remark = '';
constructor(private httpService: HttpClient) { }
myFiles: string[] = [];
myVideos: Observable<VideoMaster[]>;
@ViewChild('videoPlayer') videoplayer: ElementRef;
toggleVideo(event: any) {
this.videoplayer.nativeElement.play();
}
getvideos() {
debugger;
this.myVideos= this.VediosList();
}
VediosList(): Observable<VideoMaster[]> {
return this.httpService.get<VideoMaster[]>('http://localhost:50401/api/FileUpload/Vedios');
}
sMsg: string = '';
StudentIdUpdate: string;
ngOnInit() {
this. getvideos();
}
getFileDetails(e) {
//console.log (e.target.files);
for (var i = 0; i < e.target.files.length; i++) {
this.myFiles.push(e.target.files[i]);
}
}
uploadFiles() {
const frmData = new FormData();
for (var i = 0; i < this.myFiles.length; i++) {
frmData.append("fileUpload", this.myFiles[i]);
}
this.httpService.post('http://localhost:50401/api/FileUpload/UploadFiles', frmData).subscribe(
data => {
// SHOW A MESSAGE RECEIVED FROM THE WEB API.
this.sMsg = data as string;
console.log(this.sMsg);
}
);
}
}

Step 7

Put this code in app.component.html

<div style="text-align:center">
<h1>
Welcome to {{ title }}!
</h1>
<img width="300" alt="Angular Logo" src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNTAgMjUwIj4KICAgIDxwYXRoIGZpbGw9IiNERDAwMzEiIGQ9Ik0xMjUgMzBMMzEuOSA2My4ybDE0LjIgMTIzLjFMMTI1IDIzMGw3OC45LTQzLjcgMTQuMi0xMjMuMXoiIC8+CiAgICA8cGF0aCBmaWxsPSIjQzMwMDJGIiBkPSJNMTI1IDMwdjIyLjItLjFWMjMwbDc4LjktNDMuNyAxNC4yLTEyMy4xTDEyNSAzMHoiIC8+CiAgICA8cGF0aCAgZmlsbD0iI0ZGRkZGRiIgZD0iTTEyNSA1Mi4xTDY2LjggMTgyLjZoMjEuN2wxMS43LTI5LjJoNDkuNGwxMS43IDI5LjJIMTgzTDEyNSA1Mi4xem0xNyA4My4zaC0zNGwxNy00MC45IDE3IDQwLjl6IiAvPgogIDwvc3ZnPg==">
</div>
<div class="col-sm-10">
<ng-container>
<input type="file" id="file" multiple (change)="getFileDetails($event)">
<button class="btn btn-primary" (click)="uploadFiles()">Upload</button>
</ng-container>
</div>
<div class="col-sm-10" *ngFor="let Video of myVideos | async; let i=index">
<video width="270" height="220" controls disabled="true" (click)="toggleVideo()" #videoPlayer>
<source [src]="Video.Videos" type="video/mp4">
</video>
</div>

Now, run the project using the following command.

ng serve

Summary

In this article, I have discussed how to upload multiple images in a Web API using Angular 7. In my next article, I am going to discuss Reactive Forms Validation using Angular 7.