🚀 [Feature]: Cache-Control: no-cache

middleware/cache/cache.go

@@ -109,43 +109,47 @@ func New(config ...Config) fiber.Handler {
 		// Get timestamp
 		ts := atomic.LoadUint64(&timestamp)
 
-		// Check if entry is expired
-		if e.exp != 0 && ts >= e.exp {
-			deleteKey(key)
-			if cfg.MaxBytes > 0 {
-				_, size := heap.remove(e.heapidx)
-				storedBytes -= size
-			}
-		} else if e.exp != 0 {
-			// Separate body value to avoid msgp serialization
-			// We can store raw bytes with Storage 👍
-			if cfg.Storage != nil {
-				e.body = manager.getRaw(key + "_body")
-			}
-			// Set response headers from cache
-			c.Response().SetBodyRaw(e.body)
-			c.Response().SetStatusCode(e.status)
-			c.Response().Header.SetContentTypeBytes(e.ctype)
-			if len(e.cencoding) > 0 {
-				c.Response().Header.SetBytesV(fiber.HeaderContentEncoding, e.cencoding)
-			}
-			if e.headers != nil {
-				for k, v := range e.headers {
-					c.Response().Header.SetBytesV(k, v)
+		// Check if no-cache
+		if !cfg.noCache(c) {
+
+			// Check if entry is expired
+			if e.exp != 0 && ts >= e.exp {
+				deleteKey(key)
+				if cfg.MaxBytes > 0 {
+					_, size := heap.remove(e.heapidx)
+					storedBytes -= size
+				}
+			} else if e.exp != 0 {
+				// Separate body value to avoid msgp serialization
+				// We can store raw bytes with Storage 👍
+				if cfg.Storage != nil {
+					e.body = manager.getRaw(key + "_body")
+				}
+				// Set response headers from cache
+				c.Response().SetBodyRaw(e.body)
+				c.Response().SetStatusCode(e.status)
+				c.Response().Header.SetContentTypeBytes(e.ctype)
+				if len(e.cencoding) > 0 {
+					c.Response().Header.SetBytesV(fiber.HeaderContentEncoding, e.cencoding)
+				}
+				if e.headers != nil {
+					for k, v := range e.headers {
+						c.Response().Header.SetBytesV(k, v)
+					}
+				}
+				// Set Cache-Control header if enabled
+				if cfg.CacheControl {
+					maxAge := strconv.FormatUint(e.exp-ts, 10)
+					c.Set(fiber.HeaderCacheControl, "public, max-age="+maxAge)
 				}
-			}
-			// Set Cache-Control header if enabled
-			if cfg.CacheControl {
-				maxAge := strconv.FormatUint(e.exp-ts, 10)
-				c.Set(fiber.HeaderCacheControl, "public, max-age="+maxAge)
-			}
 
-			c.Set(cfg.CacheHeader, cacheHit)
+				c.Set(cfg.CacheHeader, cacheHit)
 
-			mux.Unlock()
+				mux.Unlock()
 
-			// Return response
-			return nil
+				// Return response
+				return nil
+			}
 		}
 
 		// make sure we're not blocking concurrent requests - do unlock

middleware/cache/config.go

@@ -2,6 +2,7 @@ package cache
 
 import (
 	"fmt"
+	"strings"
 	"time"
 
 	"github.com/gofiber/fiber/v2"
@@ -72,6 +73,9 @@ type Config struct {
 	//
 	// Default: []string{fiber.MethodGet, fiber.MethodHead}
 	Methods []string
+
+	// If no-cache exist in request header
+	noCache func(c *fiber.Ctx) bool
 }
 
 // ConfigDefault is the default config
@@ -88,6 +92,9 @@ var ConfigDefault = Config{
 	Storage:              nil,
 	MaxBytes:             0,
 	Methods:              []string{fiber.MethodGet, fiber.MethodHead},
+	noCache:	func(c *fiber.Ctx) bool {
+		return strings.Contains(c.Get(fiber.HeaderCacheControl), "no-cache")
+	},
 }
 
 // Helper function to set default values
@@ -124,5 +131,6 @@ func configDefault(config ...Config) Config {
 	if len(cfg.Methods) == 0 {
 		cfg.Methods = ConfigDefault.Methods
 	}
+	cfg.noCache = ConfigDefault.noCache
 	return cfg
 }