From 8da4662f74ba953f5ec8ff367a586487d2a6f2f7 Mon Sep 17 00:00:00 2001
From: Nicolas-ggd <nikusha.gogitidze.03@gmail.com>
Date: Sun, 15 Dec 2024 18:01:32 +0400
Subject: [PATCH] [UPDATE] readme doc about extension check

---
 README.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/README.md b/README.md
index 3f54a5e..0b1830a 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,20 @@ func Upload(c *gin.Context) {
    c.JSON(http.StatusOK, gin.H{"message": "file chunk processed"})
 }
 ```
+
+`fstream` offers extension check, all you need is that to provide which extension do you want to allow
+
+```go
+   import(
+     "github.com/Nicolas-ggd/filestream"
+   )
+
+    // Declare extension slice, slice contains all file extension which is ok for you to allow in your system
+    var allowExtensions = []string{".jpg", ".jpeg", ".png", ".gif", ".bmp", ".webp"}
+
+    // This function is very simple, but save your time to compare extension and current file to known if it's valid for you
+    fstream.IsAllowExtension(allowExtensions, "filename.png")
+```
    
 ## License
 FileStream is open-source software licensed under the MIT License.