multer cb
...multer(limits:fileSize:2*1024*1024,},fileFilter(req,file,cb)constext=path.extname(file.originalname).toLowerCase();//path.extname ...,Multerisanode.jsmiddlewareforhandlingmultipart/form-data,whichisprimarilyusedforuploadingfiles.Itiswrittenont...
conststorage=multer.diskStorage(destination:function(req,file,cb)cb(null,'public')},filename:function(req,file,cb)cb(null,file.
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