Better button handler server-side
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parent
ebe2a42f91
commit
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1 changed files with 8 additions and 5 deletions
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@ -12,15 +12,18 @@ import (
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// The button state as represented in memory
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// The button state as represented in memory
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type ButtonState struct {
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type ButtonState struct {
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pressCount int
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PressCount int `json:"pressCount"`
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}
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}
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// This is what a handler with a receiver looks like
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// This is what a handler with a receiver looks like
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// Keep in mind that concurrent state access is not (usually) safe
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// Keep in mind that concurrent state access is not (usually) safe
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// And will in pracice be guarded by a mutex
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// And will in pracice be guarded by a mutex
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func (b *ButtonState) pressHandler(w http.ResponseWriter, r *http.Request) {
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func (b *ButtonState) pressHandler(w http.ResponseWriter, r *http.Request) {
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b.pressCount++
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if r.Method != "POST" {
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response, err := json.Marshal(b.pressCount)
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b.PressCount++
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}
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response, err := json.Marshal(b)
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if err != nil {
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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return
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@ -38,13 +41,13 @@ func handler(w http.ResponseWriter, r *http.Request) {
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func main() {
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func main() {
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database.DbConnect()
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database.DbConnect()
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b := &ButtonState{pressCount: 0}
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b := &ButtonState{PressCount: 0}
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// Mounting the handlers
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// Mounting the handlers
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fs := http.FileServer(http.Dir("static"))
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fs := http.FileServer(http.Dir("static"))
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http.Handle("/", fs)
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http.Handle("/", fs)
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http.HandleFunc("/hello", handler)
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http.HandleFunc("/hello", handler)
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http.HandleFunc("/button", b.pressHandler)
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http.HandleFunc("/api/button", b.pressHandler)
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// Start the server on port 8080
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// Start the server on port 8080
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println("Currently listening on http://localhost:8080")
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println("Currently listening on http://localhost:8080")
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