DomainMapping.yaml

# Depends on App

AWSTemplateFormatVersion : '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: An example SAM template for Lambda Safe Deployments.

Parameters:
  DomainName:
    Type: String
  CertificateArn:
    Type: String
  HostedZoneId:
    Type: String
  ApiName:
    Type: String

Resources:
  customDomain:
    Type: AWS::ApiGateway::DomainName
    Properties:
      DomainName: !Ref DomainName
      EndpointConfiguration:
        Types:
          - REGIONAL
      RegionalCertificateArn: !Ref CertificateArn

  dnsRecord:
    Type: AWS::Route53::RecordSetGroup
    Properties:
      HostedZoneId: !Ref HostedZoneId 
      RecordSets:
      - Type: A
        Name: !Ref DomainName
        AliasTarget:
          HostedZoneId: !GetAtt customDomain.RegionalHostedZoneId
          DNSName: !GetAtt customDomain.RegionalDomainName

  domainMapping:
    Type: AWS::ApiGateway::BasePathMapping
    DependsOn: customDomain
    Properties:
      DomainName: !Ref DomainName
      RestApiId: !ImportValue AppRestApiId
      Stage: Prod