Have posted this in Brookframework issue but they didn't response me. This is why I am posting it here as you are responding well and solved issue promptly. What I need is to upload file through pl_brook which will be a REST server as Embedded service. Client will select file as normal browse file not using browser. As it will not use any input file. My pl_brook was register as '/put_file?filename=&file='. Here filename will be normal name of the file and file may be Binary or Base64. For reference which I posted in Brookframework issue
Issue of File Upload