Server Side PHP Code: test/file_upload .php Now flutter part, Add the file_picker, path, and dio Flutter package in your project by adding the following line in pubspec. yaml file. In this way, you can upload file from flutter. Use this code base in your project and make your app great.
Read moreHow do I send files to REST API in Flutter?
Use http. MultipartRequest instead of http. post for files.
Read more