add files

server/upload_file.go

@@ -0,0 +1,38 @@
+package server
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid" // To generate random file names
+	"net/http"
+	"path/filepath"
+)
+
+func saveFileHandler(c *gin.Context) {
+	file, err := c.FormFile("file")
+
+	// The file cannot be received.
+	if err != nil {
+		c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{
+			"message": "No file is received",
+		})
+		return
+	}
+
+	// Retrieve file information
+	extension := filepath.Ext(file.Filename)
+	// Generate random file name for the new uploaded file so it doesn't override the old file with same name
+	newFileName := uuid.New().String() + extension
+
+	// The file is received, so let's save it
+	if err := c.SaveUploadedFile(file, "/tmp/" + newFileName); err != nil {
+		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{
+			"message": "Unable to save the file",
+		})
+		return
+	}
+
+	// File saved successfully. Return proper result
+	c.JSON(http.StatusOK, gin.H{
+		"message": "Your file has been successfully uploaded.",
+	})
+}