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restfn templating functions give access to REST clients. Clients must be configured and declared adequately with the REST client module. For better understanding please read configuration and service interface declaration.
Get service
Retrieves an instance of the declared service interface. Instance is created by the configured client factory. (See rest client configuration.)
Method signature
Object getService(String restClientName, String restClientServiceClass)
Arguments
restClientName
| required The name of the configured client. |
restClientServiceClass
| required The fully qualified class name of the declared service interface for the client. |
Returns
An Object. The actual type of the returned object is defined in the service interface method. For example, if the service interface method defines the return type as a JSON object then that's what you get.
Usage
restfn.getService(restClientName, restClientServiceClass )
[#assign jokesService = restfn.getService("icndbClient", "info.magnolia.documentation.modules.restclientexamples.client.IcndbService")]
Call service (with service object)
This restfn method executes a method of the declared service interface and returns an Object according to the return type of the called interface method.
Method signature
Object call(Object service, String methodName, Object... args)
Arguments
service
| required An instance of the declared service. Can be obtained by #getService method. |
methodName
| required The name of the method of the service interface. |
args
| required A varargs parameter. In FreeMarker context just pass an array of arguments. |
Returns
An Object. The actual type of the returned object is defined in the service interface method. For example, if the service interface method defines the return type as a JSON object then that's what you get.
Usage
restfn.call(service, methodName, args)
[#assign jokesService = restfn.getService("icndbClient", "info.magnolia.documentation.modules.restclientexamples.client.IcndbService")]
[#assign params = ["random", "John", "Doe"] /]
[#assign response = restfn.call(jokesService, "joke", params) /]
[#-- another option: pass the args in brackets: --]
[#assign response = restfn.call(jokesService, "joke", ["random", "Tiger", "Lilly"] ) /]
Call service (with service interface name)
This method is a variation of the above mentioned. It also executes a method of the declared service interface and returns an Object according to the return type of the called interface method, however the input parameters are different.
Method signature
Object call(String restClientName, String restClientServiceClass, String methodName, Object... args)
Arguments
restClientName
| required The name of the configured client . |
restClientServiceClass
| required The fully qualified class name of the declared service interface for the client. |
methodName
| required The name of the method of the service interface. |
args | required A varargs parameter. In FreeMarker context just pass an array of arguments. |
Returns
An Object. The actual type of the returned object conforms with the return type of the method of the declared service interface.
Usage
restfn.call(restClientName, restClientServiceClass, methodName, args
)
[#assign params = ["random", "John", "Doe"] /] [#assign response = restfn.call( "icndbClient", "info.magnolia.documentation.modules.restclientexamples.client.IcndbService", "joke", params) /] [#-- another option: pass the args in brackets: --] [#assign response = restfn.call( "icndbClient", "info.magnolia.documentation.modules.restclientexamples.client.IcndbService", "joke", ["random", "Lisa", "Klein"]) /]
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