POST request
http://localhost:8181/restconf/operations/iotdmbundleloader:feature-put/

body:
{
"input": {
"bundle-loader-instance-name": "BundleLoaderInstanceDefault",
"feature-name": "Feature_name",
"bundles-to-load": [

{ "priority": 1, "iotdm-bundle-jar-location": "file:///home/miroslav/projects/myPlugin/onem2mnewtest/impl/target/onem2mnewtest-impl-0.1.0-SNAPSHOT.jar" }

,

{ "priority": 1, "iotdm-bundle-jar-location": "file:///home/miroslav/projects/myPlugin/onem2mnewtest/api/target/onem2mnewtest-api-0.1.0-SNAPSHOT.jar" }

]
}
}

creates only one of them when checked in running and startup config.