feat: add support for IpAddressType

integration/resources/expected/single/api_with_domain_ipaddresstype.json

@@ -0,0 +1,22 @@
+[
+  {
+    "LogicalResourceId": "MyApi",
+    "ResourceType": "AWS::ApiGateway::RestApi"
+  },
+  {
+    "LogicalResourceId": "MyApiDeployment",
+    "ResourceType": "AWS::ApiGateway::Deployment"
+  },
+  {
+    "LogicalResourceId": "MyApiProdStage",
+    "ResourceType": "AWS::ApiGateway::Stage"
+  },
+  {
+    "LogicalResourceId": "ApiGatewayDomainName",
+    "ResourceType": "AWS::ApiGateway::DomainName"
+  },
+  {
+    "LogicalResourceId": "MyApiBasePathMapping",
+    "ResourceType": "AWS::ApiGateway::BasePathMapping"
+  }
+]

integration/resources/expected/single/api_with_ipaddresstype.json

@@ -0,0 +1,14 @@
+[
+  {
+    "LogicalResourceId": "MyApi",
+    "ResourceType": "AWS::ApiGateway::RestApi"
+  },
+  {
+    "LogicalResourceId": "MyApiDeployment",
+    "ResourceType": "AWS::ApiGateway::Deployment"
+  },
+  {
+    "LogicalResourceId": "MyApiProdStage",
+    "ResourceType": "AWS::ApiGateway::Stage"
+  }
+]

integration/resources/templates/single/api_with_domain_ipaddresstype.yaml

@@ -0,0 +1,23 @@
+Parameters:
+  IpAddressType:
+    Type: String
+    Default: dualstack
+  DomainName:
+    Type: String
+  CertificateArn:
+    Type: String
+
+Resources:
+  MyApi:
+    Type: AWS::Serverless::Api
+    Properties:
+      StageName: Prod
+      DefinitionUri: ${definitionuri}
+      Domain:
+        DomainName: !Ref DomainName
+        CertificateArn: !Ref CertificateArn
+        EndpointConfiguration: REGIONAL
+        IpAddressType: !Ref IpAddressType
+
+Metadata:
+  SamTransformTest: true

integration/resources/templates/single/api_with_ipaddresstype.yaml

@@ -0,0 +1,16 @@
+Parameters:
+  IpAddressType:
+    Type: String
+    Default: ipv4
+
+Resources:
+  MyApi:
+    Type: AWS::Serverless::Api
+    Properties:
+      StageName: Prod
+      DefinitionUri: ${definitionuri}
+      EndpointConfiguration:
+        Type: REGIONAL
+        IpAddressType: !Ref IpAddressType
+Metadata:
+  SamTransformTest: true

integration/single/test_api_with_domain_ipaddresstype.py

@@ -0,0 +1,35 @@
+from unittest.case import skipIf
+
+from integration.config.service_names import REST_API
+from integration.helpers.base_internal_test import BaseInternalTest
+from integration.helpers.resource import current_region_does_not_support
+
+
+@skipIf(
+    current_region_does_not_support([REST_API]),
+    "Rest API is not supported in this testing region",
+)
+class TestApiWithDomainIpAddressType(BaseInternalTest):
+    """
+    Test AWS::Serverless::Api with IpAddressType in Domain configuration
+    """
+
+    def test_api_with_domain_ipaddresstype(self):
+        """
+        Creates an API with custom domain and IpAddressType set to dualstack
+        """
+        self.create_and_verify_stack("single/api_with_domain_ipaddresstype")
+
+        # Verify the domain name resource
+        domain_name_id = self.get_physical_id_by_type("AWS::ApiGateway::DomainName")
+        api_gateway_client = self.client_provider.api_client
+        result = api_gateway_client.get_domain_name(domainName=domain_name_id)
+
+        # Verify endpoint configuration
+        end_point_config = result["endpointConfiguration"]
+        end_point_types = end_point_config["types"]
+        self.assertEqual(1, len(end_point_types))
+        self.assertEqual("REGIONAL", end_point_types[0])
+
+        # Verify IpAddressType is set correctly
+        self.assertEqual("dualstack", end_point_config["ipAddressType"])

integration/single/test_api_with_ipaddresstype.py

@@ -0,0 +1,25 @@
+from unittest.case import skipIf
+
+from integration.config.service_names import REST_API
+from integration.helpers.base_test import BaseTest
+from integration.helpers.resource import current_region_does_not_support
+
+
+@skipIf(current_region_does_not_support([REST_API]), "Rest API is not supported in this testing region")
+class TestApiWithIpAddressType(BaseTest):
+    """
+    Test AWS::Serverless::Api with IpAddressType in EndpointConfiguration
+    """
+
+    def test_api_with_ipaddresstype(self):
+        """
+        Creates an API with IpAddressType set to ipv4
+        """
+        parameters = [{"ParameterKey": "IpAddressType", "ParameterValue": "ipv4"}]
+        self.create_and_verify_stack("single/api_with_ipaddresstype", parameters)
+
+        rest_api_id = self.get_physical_id_by_type("AWS::ApiGateway::RestApi")
+        rest_api = self.client_provider.api_client.get_rest_api(restApiId=rest_api_id)
+
+        self.assertEqual(rest_api["endpointConfiguration"]["types"], ["REGIONAL"])
+        self.assertEqual(rest_api["endpointConfiguration"]["ipAddressType"], "ipv4")

samtranslator/internal/schema_source/aws_serverless_api.py

@@ -175,6 +175,11 @@ class Domain(BaseModel):
     EndpointConfiguration: Optional[SamIntrinsicable[Literal["REGIONAL", "EDGE", "PRIVATE"]]] = domain(
         "EndpointConfiguration"
     )
+    IpAddressType: Optional[PassThroughProp] = passthrough_prop(
+        DOMAIN_STEM,
+        "IpAddressType",
+        ["AWS::ApiGateway::DomainName.EndpointConfiguration", "IpAddressType"],
+    )
     MutualTlsAuthentication: Optional[PassThroughProp] = passthrough_prop(
         DOMAIN_STEM,
         "MutualTlsAuthentication",
@@ -223,6 +228,11 @@ class EndpointConfiguration(BaseModel):
         "VPCEndpointIds",
         ["AWS::ApiGateway::RestApi.EndpointConfiguration", "VpcEndpointIds"],
     )
+    IpAddressType: Optional[PassThroughProp] = passthrough_prop(
+        ENDPOINT_CONFIGURATION_STEM,
+        "IpAddressType",
+        ["AWS::ApiGateway::RestApi.EndpointConfiguration", "IpAddressType"],
+    )
 
 
 Name = Optional[PassThroughProp]

samtranslator/internal/schema_source/sam-docs.json

@@ -49,11 +49,13 @@
       "NormalizeBasePath": "Indicates whether non\\-alphanumeric characters are allowed in basepaths defined by the `BasePath` property\\. When set to `True`, non\\-alphanumeric characters are removed from basepaths\\.  \nUse `NormalizeBasePath` with the `BasePath` property\\.  \n*Type*: Boolean  \n*Required*: No  \n*Default*: True  \n*AWS CloudFormation compatibility*: This property is unique to AWS SAM and doesn't have an AWS CloudFormation equivalent\\.",
       "OwnershipVerificationCertificateArn": "The ARN of the public certificate issued by ACM to validate ownership of your custom domain\\. Required only when you configure mutual TLS and you specify an ACM imported or private CA certificate ARN for the `CertificateArn`\\.  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`OwnershipVerificationCertificateArn`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-apigateway-domainname.html#cfn-apigateway-domainname-ownershipverificationcertificatearn) property of an `AWS::ApiGateway::DomainName` resource\\.",
       "Route53": "Defines an Amazon Route\u00a053 configuration\\.  \n*Type*: [Route53Configuration](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-property-api-route53configuration.html)  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is unique to AWS SAM and doesn't have an AWS CloudFormation equivalent\\.",
-      "SecurityPolicy": "The TLS version plus cipher suite for this domain name\\.  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`SecurityPolicy`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-apigateway-domainname.html#cfn-apigateway-domainname-securitypolicy) property of an `AWS::ApiGateway::DomainName` resource\\."
+      "SecurityPolicy": "The TLS version plus cipher suite for this domain name\\.  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`SecurityPolicy`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-apigateway-domainname.html#cfn-apigateway-domainname-securitypolicy) property of an `AWS::ApiGateway::DomainName` resource\\.",
+      "IpAddressType": "The IP address types that can invoke this DomainName. Use `ipv4` to allow only IPv4 addresses to invoke this DomainName, or use `dualstack` to allow both IPv4 and IPv6 addresses to invoke this DomainName. For the `PRIVATE` endpoint type, only `dualstack` is supported.  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`IpAddressType`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigateway-domainname-endpointconfiguration.html#cfn-apigateway-domainname-endpointconfiguration-ipaddresstype) property of an `AWS::ApiGateway::DomainName.EndpointConfiguration` resource."
     },
     "sam-property-api-endpointconfiguration": {
       "Type": "The endpoint type of a REST API\\.  \n*Valid values*: `EDGE` or `REGIONAL` or `PRIVATE`  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`Types`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigateway-restapi-endpointconfiguration.html#cfn-apigateway-restapi-endpointconfiguration-types) property of the `AWS::ApiGateway::RestApi` `EndpointConfiguration` data type\\.",
-      "VPCEndpointIds": "A list of VPC endpoint IDs of a REST API against which to create Route53 aliases\\.  \n*Type*: List  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`VpcEndpointIds`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigateway-restapi-endpointconfiguration.html#cfn-apigateway-restapi-endpointconfiguration-vpcendpointids) property of the `AWS::ApiGateway::RestApi` `EndpointConfiguration` data type\\."
+      "VPCEndpointIds": "A list of VPC endpoint IDs of a REST API against which to create Route53 aliases\\.  \n*Type*: List  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`VpcEndpointIds`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigateway-restapi-endpointconfiguration.html#cfn-apigateway-restapi-endpointconfiguration-vpcendpointids) property of the `AWS::ApiGateway::RestApi` `EndpointConfiguration` data type\\.",
+      "IpAddressType": "The IP address type for the API Gateway endpoint\\.  \n*Valid values*: `ipv4` or `dualstack`  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`IpAddressType`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigateway-restapi-endpointconfiguration.html#cfn-apigateway-restapi-endpointconfiguration-ipaddresstype) property of the `AWS::ApiGateway::RestApi` `EndpointConfiguration` data type\\."
     },
     "sam-property-api-lambdarequestauthorizationidentity": {
       "Context": "Converts the given context strings to the mapping expressions of format `context.contextString`\\.  \n*Type*: List  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is unique to AWS SAM and doesn't have an AWS CloudFormation equivalent\\.",
@@ -799,4 +801,4 @@
       "UseAliasAsEventTarget": "Indicate whether or not to pass the alias, created by using the `AutoPublishAlias` property, to the events source's target defined with [Events](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/#sam-statemachine-events.html#sam-statemachine-events)\\.  \nSpecify `True` to use the alias as the events' target\\.  \n*Type*: Boolean  \n*Required*: No  \n*Default*: `False`  \n*AWS CloudFormation compatibility*: This property is unique to AWS SAM and doesn't have an AWS CloudFormation equivalent\\."
     }
   }
-}
+}

samtranslator/model/api/api_generator.py

@@ -471,7 +471,7 @@ def _construct_stage(
 
         return stage
 
-    def _construct_api_domain(  # noqa: PLR0912, PLR0915
+    def _construct_api_domain(  # noqa: PLR0912, PLR0915 (too many branches/statements)
         self, rest_api: ApiGatewayRestApi, route53_record_set_groups: Any
     ) -> ApiDomainResponse:
         """
@@ -512,6 +512,11 @@ def _construct_api_domain(  # noqa: PLR0912, PLR0915
 
         domain.EndpointConfiguration = {"Types": [endpoint]}
 
+        # Handle IpAddressType if present
+        ip_address_type = self.domain.get("IpAddressType")
+        if ip_address_type:
+            domain.EndpointConfiguration["IpAddressType"] = ip_address_type
+
         mutual_tls_auth = self.domain.get("MutualTlsAuthentication", None)
         if mutual_tls_auth:
             sam_expect(mutual_tls_auth, self.logical_id, "Domain.MutualTlsAuthentication").to_be_a_map()
@@ -602,7 +607,7 @@ def _construct_api_domain(  # noqa: PLR0912, PLR0915
 
         return ApiDomainResponse(domain, basepath_resource_list, record_set_group)
 
-    def _construct_api_domain_v2(
+    def _construct_api_domain_v2(  # noqa: PLR0915
         self, rest_api: ApiGatewayRestApi, route53_record_set_groups: Any
     ) -> ApiDomainResponseV2:
         """
@@ -637,6 +642,11 @@ def _construct_api_domain_v2(
 
         domain.EndpointConfiguration = {"Types": [endpoint]}
 
+        # Handle IpAddressType if present
+        ip_address_type = self.domain.get("IpAddressType")
+        if ip_address_type:
+            domain.EndpointConfiguration["IpAddressType"] = ip_address_type
+
         self._set_optional_domain_properties(domain)
 
         basepaths: Optional[List[str]] = self._get_basepaths()
@@ -1537,6 +1547,10 @@ def _set_endpoint_configuration(self, rest_api: ApiGatewayRestApi, value: Union[
                 rest_api.EndpointConfiguration["VpcEndpointIds"] = value.get("VPCEndpointIds") or value.get(
                     "VpcEndpointIds"
                 )
+
+            # Handle IpAddressType if present
+            if "IpAddressType" in value:
+                rest_api.EndpointConfiguration["IpAddressType"] = value.get("IpAddressType")
         else:
             rest_api.EndpointConfiguration = {"Types": [value]}
             rest_api.Parameters = {"endpointConfigurationTypes": value}

samtranslator/schema/schema.json

@@ -5622,6 +5622,11 @@
     "AWS::ApiGateway::DomainName.EndpointConfiguration": {
       "additionalProperties": false,
       "properties": {
+        "IpAddressType": {
+          "markdownDescription": "The IP address types that can invoke this DomainName. Use `ipv4` to allow only IPv4 addresses to invoke this DomainName, or use `dualstack` to allow both IPv4 and IPv6 addresses to invoke this DomainName. For the `PRIVATE` endpoint type, only `dualstack` is supported.",
+          "title": "IpAddressType",
+          "type": "string"
+        },
         "Types": {
           "items": {
             "type": "string"
@@ -6478,6 +6483,11 @@
     "AWS::ApiGateway::RestApi.EndpointConfiguration": {
       "additionalProperties": false,
       "properties": {
+        "IpAddressType": {
+          "markdownDescription": "The IP address types that can invoke an API (RestApi). Use `ipv4` to allow only IPv4 addresses to invoke an API, or use `dualstack` to allow both IPv4 and IPv6 addresses to invoke an API. For the `PRIVATE` endpoint type, only `dualstack` is supported.",
+          "title": "IpAddressType",
+          "type": "string"
+        },
         "Types": {
           "items": {
             "type": "string"
@@ -274565,6 +274575,11 @@
     "EndpointConfiguration": {
       "additionalProperties": false,
       "properties": {
+        "IpAddressType": {
+          "markdownDescription": "The IP address type for the API Gateway endpoint\\.  \n*Valid values*: `ipv4` or `dualstack`  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`IpAddressType`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigateway-restapi-endpointconfiguration.html#cfn-apigateway-restapi-endpointconfiguration-ipaddresstype) property of the `AWS::ApiGateway::RestApi` `EndpointConfiguration` data type\\.",
+          "title": "IpAddressType",
+          "type": "string"
+        },
         "Type": {
           "items": {
             "type": "string"
@@ -277056,6 +277071,11 @@
           "markdownDescription": "Defines the type of API Gateway endpoint to map to the custom domain\\. The value of this property determines how the `CertificateArn` property is mapped in AWS CloudFormation\\.  \n*Valid values*: `REGIONAL` or `EDGE`  \n*Type*: String  \n*Required*: No  \n*Default*: `REGIONAL`  \n*AWS CloudFormation compatibility*: This property is unique to AWS SAM and doesn't have an AWS CloudFormation equivalent\\.",
           "title": "EndpointConfiguration"
         },
+        "IpAddressType": {
+          "markdownDescription": "The IP address types that can invoke this DomainName. Use `ipv4` to allow only IPv4 addresses to invoke this DomainName, or use `dualstack` to allow both IPv4 and IPv6 addresses to invoke this DomainName. For the `PRIVATE` endpoint type, only `dualstack` is supported.  \n*Type*: String  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`IpAddressType`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-apigateway-domainname-endpointconfiguration.html#cfn-apigateway-domainname-endpointconfiguration-ipaddresstype) property of an `AWS::ApiGateway::DomainName.EndpointConfiguration` resource.",
+          "title": "IpAddressType",
+          "type": "string"
+        },
         "MutualTlsAuthentication": {
           "$ref": "#/definitions/AWS::ApiGateway::DomainName.MutualTlsAuthentication",
           "markdownDescription": "The mutual Transport Layer Security \\(TLS\\) authentication configuration for a custom domain name\\.  \n*Type*: [MutualTlsAuthentication](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-apigateway-domainname.html#cfn-apigateway-domainname-mutualtlsauthentication)  \n*Required*: No  \n*AWS CloudFormation compatibility*: This property is passed directly to the [`MutualTlsAuthentication`](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-apigateway-domainname.html#cfn-apigateway-domainname-mutualtlsauthentication) property of an `AWS::ApiGateway::DomainName` resource\\.",