Your example was on my todo list, excuse the long post. I found the
diagnostic logging helpful in understanding the npm upload package busboy,
but you can easily shorten it Using "~/mytmp/" as my temporary directory
and tweaking the example at https://www.npmjs.com/package/busboy my
server.js file is:
var http = require('http'),
path = require('path'),
os = require('os'),
fs = require('fs');
inspect = require('util').inspect;
var Busboy = require('busboy');
http.createServer(function(req, res) {
if (req.method === 'POST') {
var busboy = new Busboy({ headers: req.headers });
busboy.on('file', function(fieldname, file, filename, encoding,
mimetype) {
console.log('File [' + fieldname + ']: filename: ' + filename + ',
encoding: ' + encoding + ', mimetype: ' + mimetype);
// uncomment next line to use system temporary directory
// var newPath = os.tmpDir();
var newPath = __dirname + "/mytmp";
var saveTo = path.join(newPath, path.basename(filename));
file.pipe(fs.createWriteStream(saveTo))
file.on('data', function(data) {
console.log('File [' + fieldname + '] got ' + data.length + '
bytes');
});
file.on('end', function() {
console.log('File [' + fieldname + '] Finished');
});
});
busboy.on('field', function(fieldname, val, fieldnameTruncated,
valTruncated, encoding, mimetype) {
console.log('Field [' + fieldname + ']: value: ' + inspect(val));
});
busboy.on('finish', function() {
console.log('Done!');
res.writeHead(303, { Connection: 'close', Location: '/' });
res.end();
});
return req.pipe(busboy);
} else if (req.method === 'GET') {
res.writeHead(200, { Connection: 'close' });
res.end('<html><head></head><body>\
<form method="POST" enctype="multipart/form-data">\
<input type="text" name="textfield"><br />\
<input type="file" name="filefield"><br />\
<input type="submit">\
</form>\
</body></html>');
}
}).listen(8000, function() {
console.log('Listening for requests');
});
---------------
server.js generates a simple webpage:
<html>
<head>
</head>
<body>
<form method="POST" enctype="multipart/form-data">
<input type="text" name="textfield"><br />
<input type="file" name="filefield"><br />
<input type="submit">
</form>
</body>
</html>
-------------
// Example output, using can-bus.jpg as the test file:
//
//Listening for requests
// Field [textfield]: value: ''
// File [filefield]: filename: can-bus.jpg, encoding: 7bit, mimetype:
image/jpeg
// File [filefield] got 52320 bytes
// File [filefield] got 65536 bytes
// <snip ...>
// File [filefield] got 4505 bytes
// File [filefield] Finished
// Done!
-------------------------------------------------
Paul Wolfson, Ph.D., TX LPI, #A17473
Dallas Legal Technology
3402 Oak Grove Avenue, Suite 300-A
Dallas, Texas 75204-2353
*214-257-0984 (Tel)214-838-7220 (Fax)Send me an email. <[email protected]>*
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On Sat, Mar 26, 2016 at 12:28 AM, <[email protected]> wrote:
> I have a simple need but in node.js I know it can't be done do to security.
> b.writeTextFile does not seem to work either.
>
> My need is for a user to input a file name and have this file name saved
> on the server for future append to file.
> Like saving encoder values.
>
> This will log the user input but "Cannot read property 'writeFile' of
> undefined"
>
> If anyone has any ideas please help.
>
> var fs = require('fs');var input = document.getElementById('filename');var
> fileName = input.value;
> function recordToFilename() {var input =
> document.getElementById('filename');var fileName = input.value;var qw =
> fileName;
> if (qw) {
> alert('value of: ' + qw);
> console.log(qw);
> // demo output
> var myObject = {
> qw: qw,
> fullN: function() {
> return this.qw;
> }
> };
>
> document.getElementById("demo").innerHTML = myObject.fullN();
> var path = "danny.txt";
> var data1 = "jdsfhadj"
> fs.writeFile(path,data1)
> //end demo output code
> } else {
> alert('Please enter a filename!');
> input.focus();
> }};
>
> HTML Code:
>
> <html><head>
> <title>writeFile</title>
> <script src="jquery.js"></script>
> <script src="bonescript.js"></script>
> <script src="test_3.js"></script></head><body>
>
> <label for="filename">Filename</label>
> <input name="filename" id="filename" type="text">
>
> <a id="enter_button" onclick="recordToFilename();"
> href="javascript:void(0);" title="enter">enter name</a>
> <br>
> <p id="demo"></p></body></html>
>
>
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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For more options, visit http://beagleboard.org/discuss
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