angular4-files-upload

Upload files by clicking or dragging

Getting started

npm i --save angular4-files-upload

Add following lines into your

module:

import { Ng4FilesModule } from './ng4-files';

add Ng4FilesModule to your module imports section

imports: [ Ng4FilesModule ]

component template:

Upload by click:

<ng4-files-click (filesSelect)="filesSelect($event)">
  <span>Click me to upload</span>
</ng4-files-click>

Upload with drag'n'drop:

<ng4-files-drop (filesSelect)="filesSelect($event)">
  <div style="display: inline-block; height: 100px; width: 100px; background-color: gray">
    {{selectedFiles}}
  </div>
</ng4-files-drop>

component ts:

import {
  Ng4FilesStatus,
  Ng4FilesSelected
} from './ng4-files';
 
...
 
public selectedFiles;
 
public filesSelect(selectedFiles: Ng4FilesSelected): void {
    if (selectedFiles.status !== Ng4FilesStatus.STATUS_SUCCESS) {
      this.selectedFiles = selectedFiles.status;
      return;
      
      // Hnadle error statuses here
    }
 
    this.selectedFiles = Array.from(selectedFiles.files).map(file => file.name);
  }
 

Configure

To pass config to angular4-files-upload add following lines to you component.ts file:

Shared Config

import {
  Ng4FilesService,
  Ng4FilesConfig,
} from './ng4-files';
 
...
 
constructor(
      private ng4FilesService: Ng4FilesService
  ) {}
 
private testConfig: Ng4FilesConfig = {
    acceptExtensions: ['js', 'doc', 'mp4'],
    maxFilesCount: 5,
    maxFileSize: 5120000,
    totalFilesSize: 10120000
  };
   
ngOnInit() {
    this.ng4FilesService.addConfig(this.testConfig);
}

Private configs

Config added this way
this.ng4FilesService.addConfig(this.testConfig);
is shared config. All components will use it.

But you can add multiple configs for your upload components.
Let's say, you have two upload components and you want to allow user upload just one video and 5(max) images.
To do this create 2 configs and pass it to upload components as named configs.

.ts

import {
  Ng4FilesService,
  Ng4FilesConfig,
  Ng4FilesStatus,
  Ng4FilesSelected
} from './ng4-files';
 
 ...
 
public selectedFiles; 
 
private configImage: Ng4FilesConfig = {
    acceptExtensions: ['jpg', 'jpeg'],
    maxFilesCount: 5,
    totalFilesSize: 101200000
  };
  
private configVideo: Ng4FilesConfig = {
    acceptExtensions: ['mp4', 'avi'],
    maxFilesCount: 1
  };  
 
constructor(
      private ng4FilesService: Ng4FilesService
  ) {}
 
  ngOnInit() {
    this.ng4FilesService.addConfig(this.configImage, 'my-image-config');
    this.ng4FilesService.addConfig(this.configVideo, 'my-video-config');
  }
 
  public filesSelect(selectedFiles: Ng4FilesSelected): void {
    if (selectedFiles.status !== Ng4FilesStatus.STATUS_SUCCESS) {
      this.selectedFiles = selectedFiles.status;
      return;
    }
 
    // Handle error statuses here
 
    this.selectedFiles = Array.from(selectedFiles.files).map(file => file.name);
  } 
 

.html

<ng4-files-click (filesSelect)="filesSelect($event)" [configId]="'my-image-config'">
  <span>Upload</span>
</ng4-files-click>
 
 
<ng4-files-drop (filesSelect)="filesSelect($event)" [configId]="'my-video-config'">
  <div style="display: inline-block; height: 100px; width: 100px; background-color: gray">
    {{selectedFiles}}
  </div>
</ng4-files-drop>

API

Config

acceptExtensions
values: string[] or '*'
examples: ['ts', 'spec.ts'], ['js'], '*'

maxFilesCount:
values: [number]

maxFileSize:
values: number

totalFilesSize:
values: number

Template

<ng4-files-click (filesSelect)="YOUR_HANDLER($event)" [configId]="YOUR_CONFIG">

filesSelect
emit when files attached and pass Ng4FilesSelected object to YOUR_HANDLER:

export enum Ng4FilesStatus {
    STATUS_SUCCESS,
    STATUS_MAX_FILES_COUNT_EXCEED,
    STATUS_MAX_FILE_SIZE_EXCEED,
    STATUS_MAX_FILES_TOTAL_SIZE_EXCEED,
    STATUS_NOT_MATCH_EXTENSIONS
}

export interface Ng4FilesSelected {
  status: Ng4FilesStatus;
  files: File[];
}

! Note on statuses STATUS_MAX_FILE_SIZE_EXCEED or STATUS_NOT_MATCH_EXTENSIONS you get files not passed validation, so you shouldn't filter it manually to find all invalid files.

configId
Pass your named config with configId

Caveat

Please don't use button tag in template inside ng4-files-click
Don't: html <ng4-files-click> <button></button> </ng4-files-click>

ng4-files-click content is wrapped in label tag, so prefer something like

<ng4-files-click>
    <span role="button" style="btn">Give me file ^.^</button>
</ng4-files-click>```