GWT application on GAE for a small shopping site ?

[maq]

Hi,

I am new to Google App Engine and trying to figure out whether it fits my needs. So any help would be highly appreciated!

Can I develop an application using GWT and host it on GAE with some database I can store a catalog , then allow online purchase?

If you have done that with GWT, can you provide some insights (such as any open source library to support shopping cart, payment services etc.)?


Thanks!

-maq

[Robert Kluin]

Hi,
Yes, you can use GAE + GWT. Lots of people are doing that. App
Engine has a built in database known as the Datastore,
http://code.google.com/appengine/docs/java/datastore/

If you're using Java you might want to see Objectify. As I recall
its author is using GWT.
http://code.google.com/p/objectify-appengine/

Also, you may want to search for answers in the Java specific group.
Probably a lot of good information there.
http://code.google.com/appengine/forum/java-forum.html

Robert

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[Pascal Voitot Dev]

Hi,

GAE+GWT works quite well!
If you find GWT a bit too heavy for your needs, you can also have a look at the great lightweight Java framework Play! (http://www.playframework.org) which brings a very nice & efficient experience in developing web sites in RAILS/iterative mode. It's really a huge breath of air in the Java world!
For the DB interaction, an alternative is also Siena (http://www.sienaproject.com) that is not reserved to GAE but can work with other DB (NoSQL and also SQL) (I'm lead developer so I'm not objective on this point :) )

regards
Pascal

[maq]

Sorry for the late thanks!
Robert and Pascal, Thanks for the replies!

So it does look promising for using Datastore and GWT to serve the
catalogs.
The last question is "How can I build a shopping cart with secure
payment?"
The question maybe dumb because I never have done this before.

-maq
On Aug 9, 1:35 am, Pascal Voitot Dev <pascal.voitot....@gmail.com>
wrote:

> Hi,
>
> GAE+GWT works quite well!
> If you find GWT a bit too heavy for your needs, you can also have a look at
> the great lightweight Java framework Play! (http://www.playframework.org)
> which brings a very nice & efficient experience in developing web sites in
> RAILS/iterative mode. It's really a huge breath of air in the Java world!
> For the DB interaction, an alternative is also Siena (http://www.sienaproject.com) that is not reserved to GAE but can work with
> other DB (NoSQL and also SQL) (I'm lead developer so I'm not objective on
> this point :) )
>
> regards
> Pascal
>
>
>
>
>
>
>
> On Tue, Aug 9, 2011 at 7:34 AM, Robert Kluin <robert.kl...@gmail.com> wrote:
> > Hi,
> >  Yes, you can use GAE + GWT.  Lots of people are doing that.  App
> > Engine has a built in database known as the Datastore,
> >    http://code.google.com/appengine/docs/java/datastore/
>
> >  If you're using Java you might want to see Objectify.  As I recall
> > its author is using GWT.
> >    http://code.google.com/p/objectify-appengine/
>
> >  Also, you may want to search for answers in the Java specific group.
> >  Probably a lot of good information there.
> >    http://code.google.com/appengine/forum/java-forum.html
>
> > Robert
>

[Ernesto Oltra]

Using Paypal or Google Checkout seems like a good option; but they have feeds, check them before using one or the other.

[maq]

Thanks for the references!

I read about PayPalX and Google check out... for example,
http://stackoverflow.com/questions/6092626/how-to-integrate-payment-processing-with-gwt-gae-based-app
Question:
1. PayPalX is a community project. Is it a good option to depend on
it?
2. There are some complaints about Google Checkout SDK. Is it only
applicable to integrate Google Checkout to other existing shopping
carts? If I start from scratch and only use the HTML code (e.g. code
generated from Cart Wizard. I am thinking to add those HTML into a GWT
widget.) Is this going to work?


Thanks in advance for any comments!

-maq