Setup a proxy using expo for android.

I have a program which is wrote in Expo for android. this program uses Firebase as it’s database but Firebase is restricted in my country.
the program is more than 200 files and i can’t change it’s database.
So how can I set a proxy using expo? I have a proxy account already and have below information about it:

  1. it’s IP address
  2. it’s port
  3. my username
  4. my password
  5. it’s URL
    I couldn’t find any things in Expo documentation.
    Any Suggestion Will be helpful.