trestrequest is in json format, I want in my output to receive ok or not (if there are errors) in json format when I call the REST in browser with other information.
You will have to add that to your JSON. When you set the "Return Status Code" in the tRESTResponse, that is not intended to be displayed. You can see it using your developer settings of the browser you are using (here is an example using IE https://msdn.microsoft.com/en-us/library/gg130952(v=vs.85).aspx).
You will only see what your job outputs in the Document or String in the browser window.
Introduction to Talend Open Studio for Data Integration.
Practical steps to developing your data integration strategy.
Create systems and workflow to manage clean data ingestion and data transformation.