Add ability to listen on public interface.

Add ability to handle unknown keys.
Update Readme.

.gitignore

@@ -1,3 +1,4 @@
 launch.json
 .vscode
 .env
+wakapi

README.md

@@ -1,4 +1,4 @@
-# wakapi
+# 📈 wakapi - A WakaTime-compatible backend for coding statistics
 
 ## Usage
 * Create an empty MySQL database
@@ -15,14 +15,21 @@
 * `USE yourdatabasename;`
 * `INSERT INTO users (id, api_key) VALUES ('your_cool_nickname', '728f084c-85e0-41de-aa2a-b6cc871200c1');` (the latter value is your api key from `~/.wakatime.cfg`)
 
+## Best Practices
+It is recommended to use wakapi behind a **reverse proxy**, like [Caddy](https://caddyserver.com) or _nginx_ to enable **TLS encryption** (HTTPS).
+However, if you want to expose your wakapi instance to the public anyway, you need to set `listen = 0.0.0.0` in `config.ini`
+
 ## Todo
 * Persisted summaries / aggregations (for performance)
 * User sign up and log in
 * Additional endpoints for retrieving statistics data
+* Enhanced UI
+  * Loading spinner
+  * Responsiveness
 * Dockerize
 * Unit tests
 
-## Important note
+## Important Note
 **This is not an alternative to using WakaTime.** It is just a custom, non-commercial, self-hosted application to collect coding statistics using the already existing editor plugins provided by the WakaTime community. It was created for personal use only and with the purpose of keeping the sovereignity of your own data. However, if you like the official product, **please support the authors and buy an official WakaTime subscription!**
 
 ## License

config.ini

@@ -1,2 +1,3 @@
 [server]
+listen = 127.0.0.1
 port = 3000

main.go

@@ -43,6 +43,7 @@ func readConfig() *models.Config {
 		log.Fatal(fmt.Sprintf("Fail to read file: %v", err))
 	}
 
+	addr := cfg.Section("server").Key("listen").MustString("127.0.0.1")
 	port, err := strconv.Atoi(os.Getenv("PORT"))
 	if err != nil {
 		port = cfg.Section("server").Key("port").MustInt()
@@ -50,6 +51,7 @@ func readConfig() *models.Config {
 
 	return &models.Config{
 		Port:       port,
+		Addr:       addr,
 		DbHost:     dbHost,
 		DbUser:     dbUser,
 		DbPassword: dbPassword,
@@ -65,6 +67,8 @@ func main() {
 	// Connect to database
 	db, err := gorm.Open(config.DbDialect, utils.MakeConnectionString(config))
 	db.LogMode(false)
+	db.DB().SetMaxIdleConns(1)
+	db.DB().SetMaxOpenConns(10)
 	if err != nil {
 		// log.Fatal("Could not connect to database.")
 		log.Fatal(err)
@@ -98,10 +102,10 @@ func main() {
 
 	// API Routes
 	heartbeats := apiRouter.Path("/heartbeat").Subrouter()
-	heartbeats.Methods("POST").HandlerFunc(heartbeatHandler.Post)
+	heartbeats.Methods(http.MethodPost).HandlerFunc(heartbeatHandler.Post)
 
 	aggreagations := apiRouter.Path("/summary").Subrouter()
-	aggreagations.Methods("GET").HandlerFunc(summaryHandler.Get)
+	aggreagations.Methods(http.MethodGet).HandlerFunc(summaryHandler.Get)
 
 	// Sub-Routes Setup
 	router.PathPrefix("/api").Handler(negroni.Classic().
@@ -113,7 +117,7 @@ func main() {
 	router.PathPrefix("/").Handler(negroni.Classic().With(negroni.Wrap(http.FileServer(http.Dir("./static")))))
 
 	// Listen HTTP
-	portString := "127.0.0.1:" + strconv.Itoa(config.Port)
+	portString := config.Addr + ":" + strconv.Itoa(config.Port)
 	s := &http.Server{
 		Handler:      router,
 		Addr:         portString,

models/config.go

@@ -2,6 +2,7 @@ package models
 
 type Config struct {
 	Port       int
+	Addr	   string
 	DbHost     string
 	DbUser     string
 	DbPassword string

services/summary.go

@@ -77,7 +77,7 @@ func (srv *SummaryService) aggregateBy(heartbeats []*models.Heartbeat, summaryTy
 		}
 
 		if key == "" {
-			continue
+			key = "unknown"
 		}
 
 		if _, ok := durations[key]; !ok {

static/index.html

@@ -11,7 +11,7 @@
         }
 
         .grid-container {
-            width: 60%;
+            width: 75%;
             display: grid;
             grid-template-areas:
                 'header header header'