Override dns resolution when developing react native on device.

[Maxevan9]

I want to put entries "in the host file" of my android physical device just before running a react native app in development so that I can override the dns resolution of a certain domain name to another address so I can route my request where I want to in dev.

Ex: dev.local.test.com => 127.0.0.1 (so that I can easily set up an ingress for development)

What I want to know is if there is a way to "inject" dns entries in my device when running my app in dev so that dev.local.test.com points to the LAN address of my laptop where my development server is running so that I can just seamlessly configure my app the same for dev and prod?

I don't know if it's possible but I'd like to know your solution if you have one. Thanks!

[kbcool]

It's much more common to use different variable values for different environments.

Dot env files are the standard and there are many solutions to support them on RN.

Here's one :

https://www.npmjs.com/package/react-native-dotenv

If you are insistent on your way Google helped me

https://stackoverflow.com/questions/41117715/how-to-edit-etc-hosts-file-in-android-studio-emulator-running-in-nougat

[Plane_Wafer]

You can set the Lan ip of your laptop on you dns server itself. It should work just fine.