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Questions tagged [file-upload]

a method or action of transferring a file from a client to a server.

This tag can be used on questions about uploading files to your web server.

File upload can refer to the sending of data from a local system to a remote system such as a server or another client with the intent that the remote system should store a copy of the data being transferred, or the initiation of such a process.

Resources:

28071 questions
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Preview an image before it is uploaded

I want to be able to preview a file (image) before it is uploaded. The preview action should be executed all in the browser without using Ajax to upload the image. How can I do this?
Simbian
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Maximum request length exceeded.

I am getting the error Maximum request length exceeded when I am trying to upload a video in my site. How do I fix this?
Surya sasidhar
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Posting a File and Associated Data to a RESTful WebService preferably as JSON

In an application I am developing RESTful API and we want the client to send data as JSON. Part of this application requires the client to upload a file (usually an image) as well as information about the image. I'm having a hard time tracking down…
Gregg
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26 answers

jQuery Ajax File Upload

Can I use the following jQuery code to perform file upload using POST method of an ajax request ? $.ajax({ type: "POST", timeout: 50000, url: url, data: dataString, success: function (data) { alert('success'); …
Willy
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5 answers

How does HTTP file upload work?

When I submit a simple form like this with a file attached:
Choose a file…
0xSina
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14 answers

How can I upload files to a server using JSP/Servlet?

How can I upload files to server using JSP/Servlet? I tried this: However, I only get the…
Thang Pham
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HTML Input="file" Accept Attribute File Type (CSV)

I have a file upload object on my page: with the following excel files on my desktop: file1.xlsx file1.xls file.csv I want the file upload to ONLY show .xlsx, .xls, & .csv files. Using the accept attribute,…
Dom
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13 answers

Sending multipart/formdata with jQuery.ajax

I've got a problem sending a file to a serverside PHP-script using jQuery's ajax-function. It's possible to get the File-List with $('#fileinput').attr('files') but how is it possible to send this Data to the server? The resulting array ($_POST) on…
zoku
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11 answers

Using cURL to upload POST data with files

I would like to use cURL to not only send data parameters in HTTP POST but to also upload files with specific form name. How should I go about doing that ? HTTP Post parameters: userid = 12345 filecomment = This is an image file HTTP File…
thotheolh
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How to set a value to a file input in HTML?

How can I set the value of this?
Alon Gubkin
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15 answers

JavaScript file upload size validation

Is there any way to check file size before uploading it using JavaScript?
ArK
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4 answers

REST API - file (ie images) processing - best practices

We are developing server with REST API, which accepts and responses with JSON. The problem is, if you need to upload images from client to server. Note: and also I am talking about a use-case where the entity (user) can have multiple files…
libik
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How to get full path of selected file on change of using javascript, jquery-ajax?

How to get full path of file while selecting file using