Dear @wandji69,
Please have a look at this thread for react OWA example ReactJS OWA example. Code can be found here https://github.com/djazayeri/openmrs-owa-reactexample. Please build this app and let me know if you have any problem.
Also, in last post I asked you about the changes you have made in proposal? Please let me know in which part the changes have been made.