Google Checkout Integration

I have successfully integrated JNeuhoffs Google checkout module to my opencert site.

What I want to do now is ONLY have Google checkout and no other payment gateways available to the user. So when a user clicks 'checkout' on the 'view basket' stage, they are then directed to Google checkout - currently it takes them the account login screen/guest user page.

Is it possible to bypass this step and go straight to the google checkout.

Has anyone done this?

Thanks

Simon

to do this, you would have to uninstall or disable all the other methods of payment in the admin section of the site. other that that i don't really know how it auto redirects as i don't use google checkout. you might have to look at the code to see how it works

Disable all your payment modules (except Google Checkout) in your Opencart's admin backend.

For the frontend, comment out any 'Checkout' links in the appropriate *.tpl files.

Finally, for the <div id="gcheckout">, defined in your

catalog/view/theme/default/template/module/gcheckout.tpl
catalog/view/theme/default/template/module/gcheckout2.tpl

change the style for that DIV to absolute positioning in your

catalog/view/theme/default/stylesheet/stylesheet.css

so it will show up in the place where you want it to be.

Or you could give that DIV a style="display:none;" and then copy it via a jQuery magic to an approriate
place in e.g. your checkout/cart.tpl, and then remove the 'display:none' style from it, so it gets shown.

Thanks for that

I have looked through the code an implemented the way you suggested amending the tpl files.

I have the checkout working correctly now.

However, I cant get the API callback working correctly.

Can the API callback actually create records in opencart showing the orders information from Google checkout or is that not possible??

Thanks

SImon

The callback is used by Google to send notifications of new orders to Opencart, so Opencart knows that its shopping cart can be cleared. Google also send merchant calculation requests to the callback function so as for Opencart to calculate the shipping costs.

hi JNeuhoff,

I have installed and configured google checkout latest version in to my OC v1.4.9.1. But my callback URL seems not working. I can see below error in the GC logs. Do I need to do anything with .Htaccess to enable basic Auth? I'm using Godaddy Linux host.

Error:
We encountered an error trying to access your server at https://www.site-name/index.php?route=c ... t/callback -- the error we got is Send failed with code: 401. Response body was: Failed to Get Basic Authentication Headers

Thanks! kathlk

You need to remove the basic authentication from your https://whatever URL. That is, accessing your shop site via the HTTPS protocol should not prompt for a user and password. And I hope you are not using godaddy.com as your web host.

Hi JNeuhoff,

Thanks!
I'm using Go daddy-Linux hosting plan. When I ask go daddy to remove basic auth from my hosting plan, they replied to me as below.

Go daddy:
"Please note that BASIC Auth only exists on Windows based hosting accounts. As you are not using a Windows based hosting account, this would not be related to this error. "

Do you think I cannot continue with go daddy? Is this known problem with go daddy costumes?

Thanks
kathlk

What's your URL? Does your hosting package include a proper dedicated IP-address and a secure certificate for SSL?

Thank you for your quick response. it's http://www.mysite.com/.

Yes I got SSL setup on go daddy. When I do searching on the web I found below solution and I implement that in my site. Seems it's working. But need to verify.

I enabled .htaccess and add the following lines:
RewriteEngine On
RewriteCond %{QUERY_STRING} ^order/callback/googlecheckout$
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]

Now I can see my cart get empty when returning from the Google cart. Also I have seen new order created in open cart.

If I type my callback url directly on the browser, now I'm getting "/home/content/10/7049010/html/system/google/library/googleresponse.php on line 147Invalid Merchant Id/Key Pair"

Earlier I got "Cannot get Basic auth header etc".

So this means now my Basic auth disabled and call back working fine?

Q1: When you create Open cart order based on temp Google order, Do you set correct payment method? Because I still can see pay pall as payment method, which is my default in normal checkout process.

Q2: Do open cart keep Google order information in the final order

Regards
Kathlk

Hi again JNeuhoff,

Seems now Google checkout working with Go daddy. But please see below work flow.

I have moved the Google checkout button to the confirmation section. Confirmation step show two payment options (PayPal, Google). So user do not see any difference in checkout flow.

(1) Every-time user pass confirmation page, open cart crate a order (Status = 0).
(2) If the payment success, the payment module update the order to correct state (order_status_id). This is working fine with paypal flow.
(3) If user select Google checkout, then open cart adding 'temp google order' at the google callback.
(4) When user returns to the open cart, We clear the shopping cart and this 'temp google order' entry. Working fine.
* But when we update the order with correct state "order_status_id" corresponding to the google order? Because I cannot see the correct status in my opencart order after payment success. But it remove the temp order and clear the cart.

I appreciate your help.

Thanks
Kathlk

Hi Neuhoff,

Shipping get £0 cost always in GC:
=============================
I have setup latest GC with API 2.5 - v 1.4.9. But still I’m not getting correct shipping amount in the GC. When I looked at to GC integration consol, below error exist per each checkout call.

Error in GC log:
=============
Merchant Calculations: We were looking for data in your merchant-calculation-results, but were not able to find it: result: address-id:146020686898590 shipping-name: Flat Rate

<?xml version="1.0" encoding="utf-8"?>
<merchant-calculation-results xmlns="http://checkout.google.com/schema/2">
<results>
<result shipping-name="Flat Rate" address-id="623679875976966">
<shipping-rate currency="GBP">105</shipping-rate>
<shippable>true</shippable>
</result>
</results>
</merchant-calculation-results>

<?xml version="1.0" encoding="UTF-8"?>
<merchant-calculation-callback xmlns="http://checkout.google.com/schema/2" serial-number="04a687c1-591b-4be5-8e90-7b08a4e0438d">
<shopping-cart>
<merchant-private-data>
<reference>b035fca4d44d17fba70c5a64d83197c1</reference>
<currency>GBP</currency>
<language-id>1</language-id>
</merchant-private-data>
<items>
<item>
<item-weight value="2.2046" unit="LB" />
<tax-table-selector>Taxable Goods</tax-table-selector>
<item-name>Test Model:Test product</item-name>
<item-description>product #352</item-description>
<unit-price currency="GBP">0.1</unit-price>
<quantity>1</quantity>
<merchant-item-id>352</merchant-item-id>
</item>
</items>
</shopping-cart>
<buyer-id>905281438866203</buyer-id>
<calculate>
<addresses>
<anonymous-address id="146020686898590">
<country-code>GB</country-code>
<city>Flackwelheath</city>
<region>BUCKS</region>
<postal-code>HP101GG</postal-code>
</anonymous-address>
<anonymous-address id="623679875976966">
<country-code>GB</country-code>
<city>Heath</city>
<region>BUCKINGHAMSHIRE</region>
<postal-code>HP109JN</postal-code>
</anonymous-address>
</addresses>
<shipping>
<method name="Flat Rate" />
</shipping>
<tax>false</tax>
<merchant-code-strings />
</calculate>
<buyer-language>English</buyer-language>
</merchant-calculation-callback>

Any thoughts would be appriciated!

Thanks
kap

I am unable to reproduce your error. Works fine on my test server at http://opencart-1-4-9.mhccorp.com

Have checked all your error logs?
Are you using a secure callback URL?
Are you using Notification as XML ?
Are you using API version 2.5.?
Does your server's access_log show the requests (.e.g. for merchant calculations) coming from Google?
Finally, I hope you are not using godaddy anymore!

HI Neuhoff,

I have post a detailed reply in different forum.
Apologies for double posting last time.

This problem only occurs if you have more than one shipping addresses in your Google settings. I can reproduce this in http://opencart-1-4-9.mhccorp.com now with my Google account now.

The problem exist if we user shot region name such as "BUCKS" instead of Buckingham. Also I have see the suggestion that Google recommended. According to them we need to add shipping (0, false) for such addresses.

Now this is working fine in my cart. I have changed the module little bit.
(Please see other forum for details)

Thanks
-kath-

Just as the OP, I'm trying to make google checkout the exclusive payment/checkout method. I have no trouble commenting out checkout links wherever I see them, but I'm trying to add the google checkout button to the bottom of the checkout page. I copy/pasted the code from the sidebar box in module/gcheckout2.tpl to checkout/cart.tpl
The button appears, but clicking it seems to only refresh the page. On my site's error log I see the following two errors: How do I pass the correct values?