Upload files using formidable & multiparty

Installation

NPM Install formidable,multiparty–save-d

Example 1: Using formidable to parse the form

Exports.formidableformparse =function(Req,callback) {
    var obj ={};
    var form =New Formidable. Incomingform ({
Encoding"Utf-8",
Uploaddir:"Public/upload",File Upload Address
Keepextensions:TrueReserved suffix
});
Form.parse (req)
. On (' Field ',function (name, value) {//field 
 Obj[name] = value; 
}) 
. On ( ' file ', function //file 
 Obj[name] = file; 
}) 
. On (function//end 
 callback (Error); 
}) 
. On (function () {//end 
 callback (null,obj); 
}); 
} 
                 /span>    

Note: Multiparty use this method, and can not get the following results, will be an error, do not know is not where I write there is a problem. return value:

{
"Name": "Wuwanyu",
"Age": "23",
"Icon": {
"Size": 8666,
"Path": "Public\upload\upload_713dad980d7b7dce0847476820f8b1d4.jpg",
"Name": "4eff22a5d3d8341d3bf472adbb151c18.jpg",
"Type": "Image/jpeg",
"Mtime": "2016-04-06t13:18:15.508z"
}
}

Example 2: Using multiparty to parse the form

Exports.multipartyformparse =functionReq,callback) {
    var form =New multiparty. Form ({
Encoding"Utf-8",
Uploaddir:"Public/upload",File Upload Address
Keepextensions:TrueReserved suffix
})

Form.parse (req,function (err, fields, files) { 
 var obj ={}; 
 object.keys (Fields). ForEach ( function (name) {
  Console.log ( "name: ' + name+ Obj[name] = Fields[name]; 
}); 
 
 object.keys (Files). ForEach ( function (name) {
  Console.log ( "name: ' + name+"; file: "+files[name]); 
 Obj[name] = Files[name]; 
}); 
 
 Callback (err,obj); 
}); 
} 
                 /span> 

Note: Formidable uses the same method of parsing fields, the resulting data is still in JSON format, not in array format. return value (when a file):

{

Span style= "font-family: the song Body;" > "age": ["["],

{


" path ":" Public\upload\skt_xewcxnbd_4qc6qi-pbw9.jpg ",
" headers ": {
Span style= "font-family: the song Body;" > "content-disposition": "Form-data; Name=\ "icon\"; Filename=\ "4eff22a5d3d8341d3bf472adbb151c18.jpg\" ",
" Content-type ":" Image/jpeg "},

" /span>

}

return value (when multiple files):

{
"name": ["Wuwanyu"],
"Age": [""],
"icon": [
{
" fieldName": "Icon",
" originalfilename": "3bd870116ff9708f5141aa8a374aeabf.jpg",
" path": "Public\upload-mvuwggwt9dbgczh50ybglhy.jpg",
"Headers": {
" content-disposition": "Form-data; Name=\ "icon\"; Filename=\ "3bd870116ff9708f5141aa8a374aeabf.jpg\" ",
" content-type": "Image/jpeg"},
"size": 25754
},
{
" fieldName": "Icon",
" originalfilename": "4eff22a5d3d8341d3bf472adbb151c18.jpg",
" path": "Public\upload\hjioayhxjluottwz2m-qwhuq.jpg",
"Headers": {
" content-disposition": "Form-data; Name=\ "icon\"; Filename=\ "4eff22a5d3d8341d3bf472adbb151c18.jpg\" ",
" content-type": "Image/jpeg"},
"size": 8666
}
]
}

Summarize:

Both formidable and multiparty can implement the function of parsing a form, and the data structure and field name of the returned value are different. Formidable parsing results are JSON data format, clear and unambiguous. Multiparty the return value is in array format, it is more appropriate to use multiparty when parsing multiple values in the same field.

The file is uploaded to the temp file directory, we also want to move the temporary files to our upload directory
Fs.rename (File.path, Global.appConfig.uploadDir + '/' + file.filename);

GitHub Code reference address: Https://github.com/wuwanyu/formidable.multipaty.node.test.git

Upload files using formidable & multiparty