How to get the specific child element from the parent in restconf - ietf-netmod-yang

Question

How to get the specific child element from the the parent in restconf, but at the same time to get all the parent's child in restconf?
for example:
my module
module system{
leaf name{
type string;
}
leaf version{
type string;
}
container processors{
list processor{
key "id";
leaf id{
type string;
}
leaf name{
type string;
}
}
}
}
I want all the children of system(name, version, processors) but only the ids of processors :
<system>
<name>system_1</name>
<version>1</version>
<processors>
<processor>
<id>1</id>
</processor>
<processor>
<id>2</id>
</processor>
</processors>
</system>
what is the query that will invoke that answer in restconf?

Answer 1

You should be able to have this by using the fields query parameter for the GET method.
Reference is available in RFC8040 (https://www.rfc-editor.org/rfc/rfc8040#section-4.8.3).
Request should be something like:
GET /restconf/data?fields=(system:name;system:version;system:processors/processor/id)
Note that you need to repeat the module name 'system' multiple times because you haven't defined a common top node in your example model.
Keep in mind that this works only if the RESTCONF server supports the 'fields' query parameter, which would need to be confirmed first.