According to this documentation: https://wiremock.org/docs/request-matching/#matching-headerquery-parameter-containing-multiple-values the following mapping definition:

{
  "mappings" : [ {
    "id" : "8de914b3-3f46-4860-bcbb-d9671c1d39ac",
    "request" : {
      "url" : "/someEndpoint",
      "method" : "GET",
      "queryParameters" : {
        "id" : {
          "hasExactly" : [ {
            "equalTo" : "16930666"
          }, {
            "equalTo" : "49288354"
          }, {
            "equalTo" : "62100189"
          }, {
            "equalTo" : "53250905"
          } ]
        }
      }
    },
    "response" : {
      "status" : 200,
      "body" : "<?xml version="1.0" ?>nn",
      "headers" : {
        "Content-Type" : "text/xml; charset=UTF-8"
      }
    },
    "uuid" : "8de914b3-3f46-4860-bcbb-d9671c1d39ac"
  } ],
  "meta" : {
    "total" : 1
  }
}

should work – although there is no example how the query parameters should be passed, I’d expect the following to match:

curl "http://localhost:8090/someEndpoint?id=16930666,49288354,62100189,53250905"

curl "http://localhost:8090/someEndpoint?id=16930666&id=49288354&id=62100189&id=53250905"

What am I doing wrong?