Using Amazon S3 with Dojo has the following prerequisites: * You must be signed up to use Amazon S3. You can sign up for Amazon S3 at http://aws.amazon.com/s3. * Use the provided proxy (/dojox/rpc/s3/proxy.php) with PHP 5. * proxy.php requires the following modules: o Crypt_HMAC o HTTP_Request To use S3 from Dojo, you need a proxy. You can use the provided proxy example file by renaming proxy.example-php to proxy.php and then you must enter your Amazon access key and secret access key into the proxy.php file on line 3 and 4: $accessKey = "access key"; $secretAccessKey = "secret access key"; You then use the Dojo RPC service with the "PROXIED-PATH" envelope: dojo.require("dojox.rpc.Service"); dojo.require("dojox.rpc.ProxiedPath"); var s3Buckets = new dojox.rpc.Service({ target:"http://s3.amazonaws.com/", proxyUrl:"../s3/proxy.php", // the path to the proxy transport:"REST", envelope:"PROXIED-PATH", contentType:"application/json", services:{ myBucket:{ target:"myBucket", parameters:[{type:"string"}] } } }); To use the S3 as a Dojo data store you can use the S3JsonRestStore module. First setup an RPC service as shown above and then pass the RPC service to the S3JsonRestStore: dojo.require("dojox.data.S3JsonRestStore"); s3Store = new dojox.data.S3JsonRestStore({service:s3Buckets.myBucket}); // and create a store for it You can then use the s3Store as a normal Read/Write Dojo Data store.