Update authentication, reauth, logout to use new transactions

handlers/withtransaction.go

@@ -0,0 +1,47 @@
+package handlers
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"projectreshoot/db"
+	"projectreshoot/view/page"
+
+	"github.com/rs/zerolog"
+)
+
+// A helper function to create a transaction with a cancellable context.
+func WithTransaction(
+	w http.ResponseWriter,
+	r *http.Request,
+	logger *zerolog.Logger,
+	conn *db.SafeConn,
+	handler func(
+		ctx context.Context,
+		tx *db.SafeTX,
+		w http.ResponseWriter,
+		r *http.Request,
+	),
+) {
+	// Create a cancellable context from the request context
+	ctx, cancel := context.WithTimeout(r.Context(), 10*time.Second)
+	defer cancel()
+
+	// Start the transaction
+	tx, err := conn.Begin(ctx)
+	if err != nil {
+		tx.Rollback()
+		logger.Warn().Err(err).Msg("Request failed to start a transaction")
+		w.WriteHeader(http.StatusServiceUnavailable)
+		page.Error(
+			"503",
+			http.StatusText(503),
+			"This service is currently unavailable. It could be down for maintenance").
+			Render(r.Context(), w)
+		return
+	}
+
+	// Pass the context and transaction to the handler
+	handler(ctx, tx, w, r)
+}