largedata

v1.0.10

Published

3 years ago

Large Data , formdata and file uploads.

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nodeclient

upload express upload large file http formdata big data uploading

largedata (beta)

formdata and file uploads.

npm npm GitHub

Features

[x] getting form input element and data attributes
[x] multiple upload
[x] setting up network speed (for only clients)
[x] realtime stats
[x] overwrite mode
[x] limited upload (mime-type)
[x] reject option

Install - npm i largedata --save

interface graphic desing

Madalina Taina @MadyTzn

Example upload project:

Example Project or @github/largedata/sample_upload_project/

Node.Js - server.js

const ld = require('largedata').default;

const option = { 
    encoding:'binary',  // file encoder
    storage:"./",       // your upload folder location
    overwrite: true,    // file overwrite option
    mime_types : []     // accepts only your trusted list (empty accepts all)
}

  // Express Application
  app.use('/upload',ld.router,function (req, res, next) {
    /* sample reject option
    	ld.reject("Permission denied !")
    */
    res.render("pages/index",{ title:"render your upload html" });
  })

  //Largedata  Application
  ld.formdata(option,function (fields,files,client){
    if(files){ // Input files (It's only return the successful uploads)
     console.log(files);
    }
    if(fields){ // HTML input elements & attributes
      for (const items of fields) {
        console.log( items );
	
	 client.post({ 
		  hello: "Good Morning",
		  language_test: "testing some different languages :> Günaydın, доброе утро, 
		  शुभ प्रभात ,добрий ранок, おはようございます, 早上好, buổi sáng tốt lành"
	  });  // send data-object from server to client (status:0005)
	  
      }
    }

  })

server.js (files,fields) output

formdata (files) paramater :

 {
  done: true,
  storage: './',
  name: 'test_10.iso',
  size: '10.00MB'
 }

formdata (fields) paramater :

{
  attribute: [
   { type: 'text' },
   { style: 'width: 100px;' },
   { name: 'test_input' },
   { large: 'your data attr' },
   { test: 'some numbers 123456' },
   { custom: 'your custom type' },
  ],
 id: 'test_input',
 value: 'hello'
}

HTML - example form

<! DOCTYPE html >
<html>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<center>
  <form id="my_upload">
    <input type='range' id="your_range"  /><br>
    <input type='text' style="width: 100px;" name="test_input" custom="your custom type" data-large="your data attr" data-test="some numbers 123456" /><br><br>
    <input type='file' multiple />
      <input type="button" id="send" value="Submit"/>
      <br><br>
    <div id='output_div' />
  </form>
  </center>
</html>

<script>
    jQuery('#send').click(function(){
      // OUTPUT_DIV
      var info_output = document.getElementById("info_div");
      //OPTIONS
      const Options = {
        form_id : "my_upload",    // Form id
        speed : "8000",          // Network speed type(Kbps) -> 1000Kbps = 1Mbps
        post_url : "/upload",   // Post data url
      }
      SendForm = new LargeData(Options);
      //UPLOAD INPUT FILES
      SendForm.upload(function( upload_stats , network_stats , err ) {
	//OUTPUT_DIV
        info_output.innerHTML = JSON.stringify(upload_stats) + "<br>" + 
		JSON.stringify(network_stats)+"<br>" + JSON.stringify(err)
      })
      // SEND INPUT FIELDS
      SendForm.fields(function(form,err) {
	//OUTPUT_DIV
       	info_output.innerHTML = JSON.stringify(form) + "<br>" + JSON.stringify(err)
      }) 
    });
</script>

<script src="largedata.min.js"></script>

HTML - client (network,upload,error) stats output

Upload done (output)

{ 
  "code":"0003",
  "msg":"FINISHED",
    "list":[
        {"name":"test_text_100.txt","size":"100.0MB","mime":"text/plain"},
        {"name":"test_iso_1.iso","size":"1.0GB","mime":""},
        {"name":"test_video_5.mp4","size":"5.0GB","mime":"video/mp4"},
    ]
}

Your custom data from server to client (output)

{ "code":"0005","msg":"SUCCESS","response":{
	"hello":"Good Morning",
	"language_test":"testing some different languages :> Günaydın, доброе утро, 
		शुभ प्रभात ,добрий ранок, おはようございます, 早上好, buổi sáng tốt lành"}
}

Upload current process(output)

{ 
   "code":"0004",
   "msg":"UPLOADING",
   "name":"test_video_5.mp4",
   "percent":"20"
}

Network (output)

{ 
  "network": { 
      "speed":"1.0",
	  "prefix":"Mbps",
	  "type":"ADSL,LAN,3G,4G"
   },
 "time": {
    "hour":"1",
    "minute":"20" 
 }
}

network speed a valid only on the upload proccess. This option is unusable from for the sending form elements.

overwrite (default: true) type: "boolean" if your set the "false", upload attempt is rejected.

mime_types (default:empty) type: "array" accepts only your own mime-type list for upload.

   //EXAMPLE LIST
     mime_types : [ 
     	"application/javascript", "application/json", "application/zip", 
     	"audio/mpeg", "image/gif", "image/jpeg","image/png", "text/css", 
	"text/html", "text/php","text/plain" , "your mime type here" , "etc.." 
     ]

.reject("your message")
now you can allowed or rejected client formdata to on the server side.

//reject function example usage in express application
app.use('/upload' , largedata.router, function (req, res, next) {
   largedata.reject("Permission denied !")  // client rejected ... 
     res.render("pages/index",{ title:"test" });
})

Note: if you had the js file path issue on the browser side then you can try changing to full path like http://<your_host>/<api_url>/largedata.min.js or semi url <api_url>/largedata.min.js

Build: Node.js,Ts,Js,WebApi

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