Huzzah Esp8266 connect to usb serial adapter

Can someone please help with the schematic of connecting the esp8266 to usb serial adapter?
I have tried to connect it but it seems like the esp8266 not getting enough power from it.

I also tried to connect the esp8266 to the arduino mini pro which is connected to the usb serial adapter.
That works but when connected to the computer, I keep getting uploading errors like espncom failed.

Thank you, Neil