Using GitHub Actions to deploy my code using Terraform

I am using GitHub Actions to deploy my code using Terraform. Whenever code is pushed to the Testing branch, a GitHub Action is triggered that builds the code and runs terraform apply . This works well.

The problem is that now I want to have a Prod environment too. Whenever code is pushed to the Prod branch, it should be built using its own s3 remote backend and its AWS account. The problem I’m having is that I am not sure how to configure my terraform files so that terraform can use the backend for Prod to store the state file.please anyone who is able to help.Im not sure at this point how to set that up. here is the sample of my code

name: “Terraform-Apply-Action”

on:
push:
branches:
- prod

jobs:
terraform:
name: “Terraform”
runs-on: ubuntu-latest
env:
AWS_DEFAULT_REGION: “us-east-1”
AWS_S3_BUCKET: {{ secrets.AWS_S3_BUCKET }} AWS_ACCESS_KEY_ID: {{ secrets.AWS_ACCESS_KEY_ID }}
AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY}}
steps:
- name: Checkout
uses: actions/checkout@v2

  - name: Setup Terraform
    uses: hashicorp/setup-terraform@v1

  - name: Terraform Init
    id: Init
    run: terraform init

  - name: Terraform Plan
    id: plan
    if: github.event_name == 'push'
    run: terraform plan -no-color
    continue-on-error: true

  - name: Terraform Plan Status
    if: steps.plan.outcome == 'failure'
    run: exit 1

  - name: Terraform Apply
    run: terraform apply -auto-approve