ng2-uploader v2.0.0

ng2-uploader

For demos please see demos page.

Angular2 File Uploader

Installation

npm install ng2-uploader --save

Available parameters

All parameters except url are optional.

Examples

1. Basic Example
2. Advanced Example

Backend Examples

1. NodeJS using HapiJS
2. NodeJS using express
3. PHP (Plain)

Basic Example

// app.module.ts
import { Ng2UploaderModule } from 'ng2-uploader';
...
@NgModule({
  ...
  imports: [
    Ng2UploaderModule
  ],
  ...
})
// app.component.ts
import { Component } from '@angular/core';

@Component({
  selector: 'demo-app',
  templateUrl: 'app/demo.html'
})
export class DemoApp {
  uploadFile: any;
  hasBaseDropZoneOver: boolean = false;
  options: Object = {
    url: 'http://localhost:10050/upload'
  };
  sizeLimit = 2000000;

  handleUpload(data): void {
    if (data && data.response) {
      data = JSON.parse(data.response);
      this.uploadFile = data;
    }
  }

  fileOverBase(e:any):void {
    this.hasBaseDropZoneOver = e;
  }

  beforeUpload(uploadingFile): void {
    if (uploadingFile.size > this.sizeLimit) {
      uploadingFile.setAbort();
      alert('File is too large');
    }
  }
}

<!-- app.component.html -->
<input type="file"
       ngFileSelect
       [options]="options"
       (onUpload)="handleUpload($event)"
       (beforeUpload)="beforeUpload($event)">

<!-- drag & drop file example-->
<style>
  .file-over { border: dotted 3px red; } /* Default class applied to drop zones on over */
</style>
<div ngFileDrop
     [options]="options"
     (onUpload)="handleUpload($event)"
     [ngClass]="{'file-over': hasBaseDropZoneOver}"
     (onFileOver)="fileOverBase($event)"
     (beforeUpload)="beforeUpload($event)">
</div>

<div>
Response: {{ uploadFile | json }}
</div>

Advanced Example

This example show how to use available options and progress.

import { Component, OnInit, NgZone } from '@angular/core';

@Component({
  selector: 'app-component',
  templateUrl: 'app.component.html'
})
export class AppDemoComponent implements OnInit {
  private zone: NgZone;
  private options: Object;
  private progress: number = 0;
  private response: any = {};

  ngOnInit() {
    this.zone = new NgZone({ enableLongStackTrace: false });
    this.options = {
      url: 'http://api.ng2-uploader.com:10050/upload',
      filterExtensions: true,
      allowedExtensions: ['image/png', 'image/jpg'],
      calculateSpeed: true,
      data: {
        userId: 12,
        isAdmin: true
      },
      customHeaders: {
        'custom-header': 'value'
      },
      authToken: 'asd123b123zxc08234cxcv',
      authTokenPrefix: 'Bearer'
    };
  }

  handleUpload(data: any): void {
    this.zone.run(() => {
      this.response = data;
      this.progress = Math.floor(data.progress.percent / 100);
    });
  }
}

Backend Example Using HapiJS

'use strict';

const Hapi        = require('hapi');
const Inert       = require('inert');
const Md5         = require('md5');
const Multiparty  = require('multiparty');
const fs          = require('fs');
const path        = require('path');
const server      = new Hapi.Server();

server.connection({ port: 10050, routes: { cors: true } });
server.register(Inert, (err) => {});

const upload = {
  payload: {
    maxBytes: 209715200,
    output: 'stream',
    parse: false
  },
  handler: (request, reply) => {
    const form = new Multiparty.Form();
    form.parse(request.payload, (err, fields, files) => {
      if (err) {
        return reply({status: false, msg: err});
      }

      let responseData = [];

      files.file.forEach((file) => {
        let fileData = fs.readFileSync(file.path);
        const originalName = file.originalFilename;
        const generatedName = Md5(new Date().toString() +
          originalName) + path.extname(originalName);
        const filePath = path.resolve(__dirname, 'uploads',
          generatedName);

        fs.writeFileSync(filePath, fileData);
        const data = {
          originalName: originalName,
          generatedName: generatedName
        };

        responseData.push(data);
      });

      reply({status: true, data: responseData});
    });
  }
};

const uploads = {
  handler: {
    directory: {
      path: path.resolve(__dirname, 'uploads')
    }
  }
};

server.route([
  { method: 'POST', path: '/upload',          config: upload  },
  { method: 'GET',  path: '/uploads/{path*}', config: uploads }
]);

server.start(() => {
  console.log('Upload server running at', server.info.uri);
});

Backend example using express

const express = require('express');
const cors = require('cors');
const multer = require('multer');
const path = require('path');

const app = express();
app.use(cors());

const upload = multer({
  dest: 'uploads/',
  storage: multer.diskStorage({
    filename: (req, file, cb) => {
      let ext = path.extname(file.originalname);
      cb(null, `${Math.random().toString(36).substring(7)}${ext}`);
    }
  })
});

app.post('/upload', upload.any(), (req, res) => {
  res.json(req.files.map(file => {
    let ext = path.extname(file.originalname);
    return {
      originalName: file.originalname,
      filename: file.filename
    }
  }));
});

app.listen(10050, () => {
  console.log('ng2-uploader server running on port 10050.');
});

Backend example using plain PHP

<?php

header("Access-Control-Allow-Origin: *");

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
  echo json_encode(array('status' => false));
  exit;
}

$path = 'uploads/';

if (isset($_FILES['file'])) {
  $originalName = $_FILES['file']['name'];
  $ext = '.'.pathinfo($originalName, PATHINFO_EXTENSION);
  $generatedName = md5($_FILES['file']['tmp_name']).$ext;
  $filePath = $path.$generatedName;

  if (!is_writable($path)) {
    echo json_encode(array(
      'status' => false,
      'msg'    => 'Destination directory not writable.'
    ));
    exit;
  }

  if (move_uploaded_file($_FILES['file']['tmp_name'], $filePath)) {
    echo json_encode(array(
      'status'        => true,
      'originalName'  => $originalName,
      'generatedName' => $generatedName
    ));
  }
}
else {
  echo json_encode(
    array('status' => false, 'msg' => 'No file uploaded.')
  );
  exit;
}

?>

Demos

For more information, examples and usage examples please see demos

LICENCE

MIT