Upgrade solr-go to version 0.2

suggest_handler.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/sf9v/solr-go"
+)
+
+type suggestHandler struct {
+	collection string
+	solrClient solr.Client
+}
+
+type suggestion struct {
+	Term string `json:"term"`
+}
+
+func (h *suggestHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	q := r.URL.Query().Get("q")
+
+	if len(q) == 0 {
+		return
+	}
+
+	dict := "default"
+	suggestParams := solr.NewSuggesterParams("suggest").
+		Build().Query(q).Dictionaries(dict)
+	suggestResp, err := h.solrClient.Suggest(r.Context(), h.collection, suggestParams)
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+		return
+	}
+
+	suggest := *suggestResp.Suggest
+	termBody := suggest[dict][q]
+
+	suggestions := []suggestion{}
+	for _, suggest := range termBody.Suggestions {
+		suggestions = append(suggestions, suggestion{
+			Term: suggest.Term,
+		})
+	}
+
+	err = json.NewEncoder(w).Encode(solr.M{
+		"numFound":    termBody.NumFound,
+		"suggestions": suggestions,
+	})
+	if err != nil {
+		http.Error(w, err.Error(), 500)
+	}
+}