Display search time

server.go

@@ -32,6 +32,7 @@ import (
 	"net/http"
 	"runtime"
 	"strings"
+	"time"
 
 	"github.com/GaryBoone/GoStats/stats"
 	_ "github.com/go-sql-driver/mysql"
@@ -85,6 +86,8 @@ func prepareColumn(request jsonQueryRequest, entries, foundEntries records, feat
 }
 
 func executeQuery(rw http.ResponseWriter, req *http.Request) {
+	startTime := time.Now()
+
 	var request jsonQueryRequest
 	if err := json.NewDecoder(req.Body).Decode(&request); err != nil {
 		http.Error(rw, err.Error(), http.StatusInternalServerError)
@@ -139,6 +142,8 @@ func executeQuery(rw http.ResponseWriter, req *http.Request) {
 		response.Records = append(response.Records, item)
 	}
 
+	response.ElapsedTime = time.Since(startTime).Nanoseconds()
+
 	js, err := json.Marshal(response)
 	if err != nil {
 		log.Fatal(err)

static/index.html

@@ -88,6 +88,7 @@
             <div class="panel panel-default" style="display: none;" id="resultPanel">
                 <div class="panel-heading">
                     <big>Results (<span id="resultCount"></span>)</big>
+                    <span class="pull-right text-muted" id="elapsedTime"></span>
                 </div>
                 <div class="panel-body">
                     <script id="template" type="text/x-handlers-template">

static/scripts/search.js

@@ -158,6 +158,7 @@
             searchResultCnt += ' of ' + results.count;
         }
         $('#resultCount').text(searchResultCnt);
+        $('#elapsedTime').text(Math.round(results.elapsedTime / 1000000) + ' ms');
 
         var template = Handlebars.compile($('#template').html());
         $('#records').empty();

types.go

@@ -97,6 +97,7 @@ type jsonQueryResponse struct {
 	Count       int                   `json:"count"`
 	MinScore    float64               `json:"minScore"`
 	Records     []jsonRecord          `json:"records"`
+	ElapsedTime int64                 `json:"elapsedTime"`
 }
 
 type jsonCategory struct {