Integration API to return list of categories based on search parameter

When I query ProductMaster using

{{BASE_URL}}/mdm_rest/api/v1/integrations/hierarchies/Master Gene Hierarchy/categories?catalogName=Gene-Disease Catalog&categoryPKeys=HGNC:336,HGNC:23336

I get back a result like this:

{

"entryInfoList": [

{

"primaryKey": "HGNC:23336",

"entryData": {

"Gene Hierarchy Spec/Database Links": {

"Gene Hierarchy Spec/Database Links/UniProt_Link": "https://www.uniprot.org/uniprotkb?query=gene:A2ML1",

"Gene Hierarchy Spec/Database Links/Locus_DB_Link": null,

"Gene Hierarchy Spec/Database Links/Medline Plus Link": "N/A"

},

"Gene Hierarchy Spec/HGNC_ID": "HGNC:23336",

"Gene Hierarchy Spec/Primary_Transcript": "NM_144670.6",

"Gene Hierarchy Spec/Imported": "false",

"Gene Hierarchy Spec/Variant Details": [],

"Gene Hierarchy Spec/Reporting Information": {

"Gene Hierarchy Spec/Reporting Information/Disease_Group_Inheritance": null

},

"Gene Hierarchy Spec/Gene": "A2ML1",

"Gene Hierarchy Spec/Previous_HGNC": "CPAMD9",

"Gene Hierarchy Spec/HGMD_Symbol": null,

"Gene Hierarchy Spec/HGNC_Aliases": "FLJ25179|p170",

"Gene Hierarchy Spec/Gene Descriptions": {

"Gene Hierarchy Spec/Gene Descriptions/Protein_Function": "This gene encodes a member of the alpha-macroglobulin superfamily. The encoded protein is thought to be an N-glycosylated monomeric protein that acts as an inhibitor of several proteases.",

"Gene Hierarchy Spec/Gene Descriptions/Long_Gene_Description": null,

"Gene Hierarchy Spec/Gene Descriptions/Alternate_Nomenclature": null,

"Gene Hierarchy Spec/Gene Descriptions/Populate_Protein_Function": null,

"Gene Hierarchy Spec/Gene Descriptions/Short_Gene_Description": null

}

},

"status": "NOT_CHECKEDOUT",

"entryCompletenessInfoList": null,

"categoryName": "A2ML1",

"path": [

"Master Gene Hierarchy/A2ML1"

],

"displayPath": [

"Master Gene Hierarchy/A2ML1"

],

"subCategoriesCount": 1,

"primaryKeyNodeName": "Gene Hierarchy Spec/HGNC_ID",

"displayNodeName": "Gene Hierarchy Spec/Gene"

},

...

],

"totalCount": 2

}

My focus is on the entryInfoList element of this json, which is a list of 54 elements, each containing "primaryKey". Of these 54 elements, I am only interested in those with primaryKey that match those supplied in the url, which are HGNC:336,HGNC:23336.

My understanding was that since the API returns a list of 54 elements, there should be a way to filter them in the query itself. Does the API provide such mechanism? If this is not the correct endpoint to do this, what other solution can you suggest?