import (
    "github.com/stevenferrer/solr-go"
)

...

// Create a client
baseURL := "http://solr.example.com"
client := solr.NewJSONClient(baseURL)

// Create a query
query := solr.NewQuery(solr.NewDisMaxQueryParser().
        Query("'solr rocks'").BuildParser()).
    Queries(solr.M{
        "query_filters": []solr.M{
            {
                "#size_tag": solr.M{
                    "field": solr.M{
                        "f":     "size",
                        "query": "XL",
                    },
                },
            },
            {
                "#color_tag": solr.M{
                    "field": solr.M{
                        "f":     "color",
                        "query": "Red",
                    },
                },
            },
        },
    }).
    Facets(
        solr.NewTermsFacet("categories").
            Field("cat").Limit(10),
        solr.NewQueryFacet("high_popularity").
            Query("popularity:[8 TO 10]"),
    ).
    Sort("score").
    Offset(1).
    Limit(10).
    Filters("inStock:true").
    Fields("name", "price")

// Send the query
queryResponse, err := client.Query(context.Background(), "techproducts", query)