some more payment modifications

main.go

@@ -98,6 +98,7 @@ func main() {
         http.HandleFunc("/lastmetrics", lastmetricsHandler)
         http.HandleFunc("/save_scale_settings", save_scale_settingsHandler)
         http.HandleFunc("/getstripesession", getstripesessionHandler)
+        http.HandleFunc("/stripewebhook", stripeWebhookHandler)
 
 	logit("Starting Web Application...")
 	http.ListenAndServe("127.0.0.1:4000", nil)

stripe.go

@@ -4,11 +4,19 @@ import (
     "fmt"
     "log"
     "strconv"
+    "os"
+    "io/ioutil"
+    "encoding/json"
     "net/http"
     "github.com/stripe/stripe-go"
     "github.com/stripe/stripe-go/checkout/session"
+    "github.com/stripe/stripe-go/webhook"
 )
 
+func getStripeKey() string {
+  return "sk_test_GJbXPD0IAFNvvGpNEpaeDfhl"
+}
+
 func getstripesessionHandler(response http.ResponseWriter, request *http.Request) {
         name := getUserName(request)
         if name  != "" {
@@ -53,7 +61,7 @@ func getstripesessionHandler(response http.ResponseWriter, request *http.Request
              fmt.Println(charge_amount_rappen[0], "is not an integer.")
            }
 
-	   stripe.Key = "sk_test_GJbXPD0IAFNvvGpNEpaeDfhl"
+           stripe.Key = getStripeKey()
 
 	   params := &stripe.CheckoutSessionParams{
 	    	PaymentMethodTypes: stripe.StringSlice([]string{
@@ -83,3 +91,41 @@ func getstripesessionHandler(response http.ResponseWriter, request *http.Request
 	   fmt.Fprintf(response, "{ \"rc\": 6, \"msg\": \"Only available for logged in users\" }")
         }
 }
+
+func stripeWebhookHandler(response http.ResponseWriter, request *http.Request) {
+    body, err := ioutil.ReadAll(request.Body)
+    if err != nil {
+        fmt.Fprintf(os.Stderr, "Error reading request body: %v\n", err)
+        response.WriteHeader(http.StatusServiceUnavailable)
+        return
+    }
+
+    // Pass the request body & Stripe-Signature header to ConstructEvent, along with the webhook signing key
+    // You can find your endpoint's secret in your webhook settings
+    endpointSecret := "whsec_b1OdRuu9aK6zXt6M1EQRxZ4lhl3rrVtN";
+    event, err := webhook.ConstructEvent(body, request.Header.Get("Stripe-Signature"), endpointSecret)
+
+    if err != nil {
+        fmt.Fprintf(os.Stderr, "Error verifying webhook signature: %v\n", err)
+        response.WriteHeader(http.StatusBadRequest) // Return a 400 error on a bad signature
+        return
+    }
+
+    // Handle the checkout.session.completed event
+    if event.Type == "checkout.session.completed" {
+        var session stripe.CheckoutSession
+        err := json.Unmarshal(event.Data.Raw, &session)
+        if err != nil {
+            fmt.Fprintf(os.Stderr, "Error parsing webhook JSON: %v\n", err)
+            response.WriteHeader(http.StatusBadRequest)
+            return
+        }
+
+        // Fulfill the purchase...
+        //handleCheckoutSession(session)
+        log.Println("handleCheckoutSession "+session.ID)
+    }
+
+    response.WriteHeader(http.StatusOK)
+}
+