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uint32_t Plugin::get_method(ClassName& response) const
{
	//body of the method
}

uint32_t Plugin::set_method(ClassName& response) const
{
	//body of the method
}       

10.  <PluginName>HAL.cpp: Used to communicate to driver layer in order to get some information or to set some properties.

Please refer to any existing plugins in https://github.com/WebPlatformForEmbedded/ThunderNanoServices/ 

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for further clarifications

Compilation and Install

bitbake wpeframework-plugins

will generate <PluginName>.json and libWPEFrameworkPlugin.so

Copy the plugin library (libWPEFrameworkPlugin.so) to “/usr/lib/wpeframework/plugins” 

Copy the Plugin.json file to “/etc/WPEFramework/plugins” so that the controller plugin identify it and list it in the WebUI (controller UI ) 

Restart the service

systemctl restart wpeframework

Using the command “$ journalctl – u wpeframework | grep <plug-in name>” we can identify, if the newly added plug-in got activated or not

If the plug-in got activated, it will be listed in the WebUI and using Controller plug-in we can control (activate / deactivate) the newly added plugin

Validation

REST APIs based curl command:

Request:

$ curl --request GET http://127.0.0.1:9998/Service/<pluginName>/<function>

eg: $ curl --request GET http://127.0.0.1:9998/Service/Picture/Brightness

Response:

{"brightness":100}

JSON RPC APIs based curl command:

Request:

$ curl --data-binary '{"jsonrpc": "2.0", "id": 3, "method": "Picture.1.brightness"}' http://127.0.0.1:9998/jsonrpc

Response:

{"jsonrpc":"2.0","id":3,"result":{"brightness":100},"success"}