How to do either operation in IRItemplate in a Hydra:Operation? - rest

Question

My hydra vocab is similar to Markus-lanthaler Vocab.Here is one of my operation on User Class to retrieve collection of Users.
{
"#id": "payu:retrieve_users",
"#type": "hydra:Operation",
"method": "GET",
"label": "Retrieve users",
"description": "Retrieves Users",
"expects": null,
"returns": "hydra:Collection",
"IriTemplate" : {
"#type" : "IriTemplate",
"template" : "{?userIds,firstName,lastName}",
"variableRepresentation": "BasicRepresentation",
"mapping" : [
{
"#type" : "IriTemplateMapping",
"variable" : "userIds",
"property" : "hydra:property",
"required" : false
},
{
"#type" : "IriTemplateMapping",
"variable" : "firstName",
"property" : "hydra:property",
"required" : false
},
{
"#type" : "IriTemplateMapping",
"variable" : "lastName",
"property" : "hydra:property",
"required" : false
}
]
}
}
As you can see in IRItemplate
"template" : "{?userIds,firstName,lastName}"
so I want to get control over retrieve either a third person will be able to retrieve through (userIds) or (firstName,lastName).
Should I make two separate hydra Operations having IRItemplate :
In First Operation:
"template" : "{?userIds}"
In Second Operation:
"template" : "{?firstName,lastName}"
Or Is there any existing way to do this in Hydra Specification using single operation ?

Answer 1

Currently there's no way to specify that for a single operation. You'll need to have two operations. Also, you need to associate the operation to the IriTemplate and not the other way round:
{
"#type" : "IriTemplate",
"template" : "{?userIds,firstName,lastName}",
...
"operation": {
"#id": "payu:retrieve_users",
"#type": "hydra:Operation",
"method": "GET",
...
}
}