Webservices in Hybris

Hybris provides a great way to expose all of its functionality via webservices, We can provide all the data available in the hybris database (products, promotions, vouchers , wishlist etc) to third party applications which are not built using Hybris.

Some webservices are exposed via http and 9001 port where-as others where spring-security is applied are exposed via https and 9002 port. 

Accessing normal webservices is pretty straight forward. But there is a way to access webservices where spring-security is applied.

Most of the features are provided by Hybris Out-Of-The-Box (OOTB). In case of customization we only have to Fetch data either byFlexible Search Query or from services, add them to a list and return the list to the calling application.

Rest of the things will be taken care by Hybris automatically :)   
 --------------------------------------------------------------------------------------------------------------------

Follow these steps to make your own custom extension for webservices -> 
1) Go to platform directory of hybris and type the modulegen command.

Hybris5.4\hybris\bin\platform> ant modulegen 
2) You will be provided the following templates to select.

[input] Press [Enter] to use the default value ([accelerator], b2baccelerator, telcoaccelerator, commercewebservices)

Select commercewebservices 
3) You will be asked to name your extension.

Press [Enter] to use the default value [training]

Example Name -> myWebService 
4) You will be asked to enter package name.

Press [Enter] to use the default value [org.training]

Example Package -> org.webservice 
---------------------------------------------------------------------------------------------------------------------
Add the following entries to localextensions.xml file ->
<path dir="${HYBRIS_BIN_DIR}" />
<!-- ext-platform -->
<extension name="admincockpit" />
<extension name="backoffice" />
<extension name="cockpit" />
<extension name="hmc" />
<extension name="mcc" />
<extension name="platformhmc" />
<!-- ext-commerce -->
<extension name="btg" />
<extension name="btgcockpit" />
<extension name="commercesearch" />
<extension name="commercesearchbackoffice" />
<extension name="commercesearchhmc" />
<extension name="commerceservices" />
<extension name="basecommerce" />
<extension name="payment" />
<extension name="promotions" />
<extension name="voucher" />
<extension name="customerreview" />
<extension name="ticketsystem" />
<extension name="solrfacetsearch" />
<extension name="solrfacetsearchhmc" />
<extension name="oci" />
<extension name="wishlist" />
<extension name="commercefacades" />
<!-- ext-data -->
<extension name="commercesearchsampledata" />
<extension name="apparelstore" />
<extension name="electronicsstore" />
<extension name="instoresampledata" />
<!-- ext-content -->
<extension name="productcockpit" />
<extension name="cms2" />
<extension name="cms2lib" />
<extension name="cmscockpit" />
<extension name="bmecat" />
<extension name="bmecathmc" />
<extension name="importcockpit" />
<extension name="classificationsystems" />
<extension name="classificationsystemshmc" />
<!-- ext-channel -->
<extension name="cscockpit" />
<extension name="mobileoptionals" />
<extension name="mobileservices" />
<extension name="instore" />
<!-- ext-addon -->
<extension name="addonsupport" />
<!-- ext-print -->
<extension name="print" />
<extension name="printcockpit" />
<extension name="printhmc" />
<!-- ext-accelerator -->
<extension name="acceleratorservices" />
<extension name="acceleratorfacades" />
<extension name="acceleratorcms" />
<extension name="acceleratorstorefrontcommons" />
<!-- custom-webstore -->
<extension name="myWebStorecockpits" />
<extension name="myWebStorecore" />
<extension name="myWebStorefacades" />
<extension name="myWebStorefulfilmentprocess" />
<extension name="myWebStoreinitialdata" />
<extension name="myWebStorestorefront" />
<extension name="myWebStoretest" />
<!-- custom-sebservice -->
<extension name="myWebService" />

Note : In some versions of Hybris, you make have to include one more extension -> <extension name="platformwebservices" />
 ------------------------------------------------------------------------------------------------------------------------
Go to extensioninfo.xml file of the newly created extension -> myWebService.

You will see the following entries->
<extension abstractclassprefix="Generated" classprefix="Ycommercewebservices" name="myWebService" usemaven="false">
<requires-extension name="commercefacades"/>
<requires-extension name="commerceservices"/>
<requires-extension name="commercewebservicescommons"/>
<coremodule generated="true" manager="de.hybris.platform.jalo.extension.GenericManager" packageroot="org.webservice.core"/>
<webmodule jspcompile="false" webroot="/myWebService"/>
<meta key="extgen-template-extension" value="true"/>
</extension>

Here this line is very important  ->

<webmodule jspcompile="false" webroot="/myWebService"/>.

You will be calling your webservices with the root as /myWebService. Here you can give any name you want to give but you need to use the same name mentioned in this file for calling your webservices.
 ---------------------------------------------------------------------------------------------------------------------

Time to check the webservice. Build the code and start hybrisserver.

Now open Rest-Client and execute the following webservice request to fetch product details from Hybris.

URL - http://localhost:9001/myWebService/v1/electronics/products

Method : GET

You can view the response in the body of rest client as shown below.

Now if you try to make this call - https://localhost:9002/myWebService/v1/electronics/customers/current

You will get the following error.

It is because this call has been secured and requires authentication.

Steps for Authentication : 
Type the following URL in RestClient.

http://localhost:9001/myWebService/oauth/token?client_id=mobile_android&client_secret=secret&grant_type=password&username=kishore.polsani@gmail.com&password=Jan@2017

Method = POST

Output =

Note: You need to be a registered user, else it will give "Bad Credentials" error.  
 
Authorization entries are present in security-spring.xml located at the following location.  
myWebService/web/webroot/WEB-INF/config/security-spring.xml<oauth:client-details-service id="clientDetails">
<oauth:client client-id="client-side" resource-ids="hybris" authorized-grant-types="implicit,client_credentials"
authorities="ROLE_CLIENT" secret="secret" redirect-uri="http://localhost:8080/oauth2_implicit_callback" />
<oauth:client client-id="mobile_android" resource-ids="hybris"
authorized-grant-types="authorization_code,refresh_token,password,client_credentials" authorities="ROLE_CLIENT" secret="secret"
redirect-uri="http://localhost:8080/oauth2_callback" />
<oauth:client client-id="trusted_client" resource-ids="hybris"
authorized-grant-types="authorization_code,refresh_token,password,client_credentials" authorities=" ROLE_TRUSTED_CLIENT”
secret="secret" /> </oauth:client-details-service>


Now add the access token in the header of Rest-Client as shown below.
 

 
From now onwards whenever you make any webservice calls, you will no longer be an anonymous user but will be logged in with the user-id of whom the credentials were provided while acquiring the access_token above.

Now again if you try to make this call - https://localhost:9002/myWebService/v1/electronics/customers/current 

You will still get the following error. 
 

 
To solve this go to SSL tab of Rest-Client  

Here enter the following->
 
Trust store file : Select keystore file located at the following path of your Hybris Commerce Suite.
Path = \hybris-commerce-suite-5.4.0.3\hybris\bin\platform\tomcat\lib\keystore 
 
Trust store password : 123456 
 
Hostname verifier : Allow All
 
Now if you try to make this call -https://localhost:9002/myWebService/v1/electronics/customers/current

You will get the following output ->
  

If you observe there was no need to pass customerID, from the access_token it automatically passes the customerID.

Note : If you want to use this logic from JAVA code, then you have to write code to append access_token in the header of request. 
 --------------------------------------------------------------------------------------------------------------------------------
By default Hybris provides various webservice calls, related to various functionalities which are located in the following files->
 

 
 
If you want to expose something which is not provided in the above files then you need to do further customization.

Steps: 

1) Create your own class and extend it from the BaseController 

@Controller("wishlistControllerV1")
@RequestMapping(value = "/{baseSiteId}/wishlist")
public class WishlistController extends BaseController 

2) Write your own method, fetch the required data, add it to a list and return the list. 
@RequestMapping(value = "/getDefaultWishlist", method = RequestMethod.GET)
@ResponseBody
public List<WishlistData> getDefaultWishlist() throws Exception
{
final List<WishlistData> listFinal = new ArrayList<WishlistData>();
final Wishlist2Model wishlist2Model = wishlistService.getDefaultWishlist(userService.getCurrentUser());
final List<Wishlist2EntryModel> list = wishlist2Model.getEntries();
final Iterator iterator = list.iterator();
while (iterator.hasNext())
{
Wishlist2EntryModel productModel = new Wishlist2EntryModel();
productModel = (Wishlist2EntryModel) iterator.next();
final WishlistData wishlistData = new WishlistData();
wishlistData.setCode(productModel.getProduct().getCode());
wishlistData.setName(productModel.getProduct().getName());
wishlistData.setPriceQuantity(productModel.getProduct().getPriceQuantity());
wishlistData.setPriority(String.valueOf(productModel.getPriority()));
wishlistData.setAddedDate(productModel.getAddedDate());
listFinal.add(wishlistData);
}
}
return listFinal;
}

3) If the data is not accessible via available services then you can write Flexible Search Query.  
final FlexibleSearchQuery query = new FlexibleSearchQuery("select {pk} from {voucher}"); 
Add this result to a list and return the list.

Note: 
If you don’t want to customize webservice and use the default webservices provided use /rest instead of your custom name/myWebService. 

Example : 
 
Custom : http://localhost:9001/myWebService/v1/electronics/cart  
Default : http://localhost:9001/rest/v1/electronics/cart  
----------------------------------------------------------------------------------------------------------------------------------
Some sample webservice calls provided by Hybris OOTB. 

Authenticaiton 
http://localhost:9001/myWebService/oauth/token?client_id=mobile_android&client_secret=secret&grant_type=password&username=hrishikesh.maluskar@igate.com&password=Aug@2015 

Get the current logged in user https://localhost:9002/myWebService/v1/electronics/customers/current 
 
Get the current session cart 
http://localhost:9001/myWebService/v1/electronics/cart 
 
Add to cart 
http://localhost:9001/myWebService/v1/electronics/cart/entry?code=107701&qty=2 
 
Logout current user http://localhost:9001/myWebService/v1/electronics/customers/current/logout 
 
Promotions list 
https://localhost:9002/myWebService/v1/electronics/promotions?type=all 
(type can be all,order,product) 
 
Product list 
https://localhost:9002/myWebService/v1/electronics/products 

Get Voucher Information 
https://localhost:9002/myWebService/v1/electronics/vouchers/999-965M-4Y95-34GY 
 
Apply voucher to cart 
https://localhost:9002/myWebService/v1/electronics/cart/voucher/999-965M-4Y95-34GY 

Release voucher from cart 
https://localhost:9002/myWebService/v1/electronics/vouchers/999-965M-4Y95-34GY