example web server

main.go

@@ -0,0 +1,60 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+    "log"
+    "os"
+)
+
+// RequestData represents the JSON request body structure
+type RequestData struct {
+	Date     string `json:"date"`
+	Nickname string `json:"nickname"`
+}
+
+func main() {
+    // Set the output to unbuffered
+    log.SetOutput(os.Stdout)
+
+	http.HandleFunc("/print/dnh-label", func(w http.ResponseWriter, r *http.Request) {
+		// Only handle POST requests
+		if r.Method != http.MethodPost {
+			http.Error(w, "Invalid request method", http.StatusMethodNotAllowed)
+			return
+		}
+
+		// Parse JSON request body
+		var requestData RequestData
+		decoder := json.NewDecoder(r.Body)
+		if err := decoder.Decode(&requestData); err != nil {
+			http.Error(w, "Invalid JSON request body", http.StatusBadRequest)
+			return
+		}
+
+		// Validate the date format
+		_, err := time.Parse("2006-01-02", requestData.Date)
+		if err != nil {
+			http.Error(w, "Invalid date format. Please use yyyy-mm-dd", http.StatusBadRequest)
+			return
+		}
+
+		// Process the request
+		response := fmt.Sprintf("Received Date: %s, Nickname: %s", requestData.Date, requestData.Nickname)
+
+		// Send a JSON response
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(http.StatusOK)
+		json.NewEncoder(w).Encode(map[string]string{"message": response})
+
+		// Force immediate output to the console
+		log.Println(response)
+	})
+
+	// Start the server
+	fmt.Println("Server is running on :8080")
+	http.ListenAndServe(":8080", nil)
+}
+