Script to upload image files to Amazon S3. Uses jQuery promise API.

jq-s3-upload.js

function upload(imageURI, fileName) {
        var deferred = $.Deferred(),
            ft = new FileTransfer(),
            options = new FileUploadOptions();
 
        options.fileKey = "file";
        options.fileName = fileName;
        options.mimeType = "image/jpeg";
        options.chunkedMode = false;
        options.params = {
            "key": fileName,
            "AWSAccessKeyId": awsKey,
            "acl": acl,
            "policy": policyBase64,
            "signature": signature,
            "Content-Type": "image/jpeg"
        };
 
        ft.upload(imageURI, s3URI,
            function (e) {
                deferred.resolve(e);
            },
            function (e) {
                deferred.reject(e);
            }, options);
 
        return deferred.promise();
 
    }