Replace 'internal/endpoints' with top-level 'endpoints' package.

aws_config.go

@@ -24,9 +24,9 @@ import (
 	"github.com/aws/aws-sdk-go-v2/feature/ec2/imds"
 	"github.com/aws/smithy-go/middleware"
 	"github.com/hashicorp/aws-sdk-go-base/v2/diag"
+	"github.com/hashicorp/aws-sdk-go-base/v2/endpoints"
 	"github.com/hashicorp/aws-sdk-go-base/v2/internal/awsconfig"
 	"github.com/hashicorp/aws-sdk-go-base/v2/internal/constants"
-	"github.com/hashicorp/aws-sdk-go-base/v2/internal/endpoints"
 	"github.com/hashicorp/aws-sdk-go-base/v2/logging"
 	"github.com/hashicorp/terraform-plugin-log/tflog"
 )
@@ -337,7 +337,9 @@ func GetAwsAccountIDAndPartition(ctx context.Context, awsConfig aws.Config, c *C
 				"Errors: %w", err))
 	}
 
-	return "", endpoints.PartitionForRegion(awsConfig.Region), nil
+	partition, _ := endpoints.PartitionForRegion(endpoints.DefaultPartitions(), awsConfig.Region)
+
+	return "", partition.ID(), nil
 }
 
 func commonLoadOptions(ctx context.Context, c *Config) ([]func(*config.LoadOptions) error, error) {

validation/region.go

@@ -5,26 +5,26 @@ package validation
 
 import (
 	"fmt"
+	"slices"
 
-	"github.com/hashicorp/aws-sdk-go-base/v2/internal/endpoints"
+	"github.com/hashicorp/aws-sdk-go-base/v2/endpoints"
 )
 
 type InvalidRegionError struct {
 	region string
 }
 
 func (e *InvalidRegionError) Error() string {
-	return fmt.Sprintf("Invalid AWS Region: %s", e.region)
+	return fmt.Sprintf("invalid AWS Region: %s", e.region)
 }
 
 // SupportedRegion checks if the given region is a valid AWS region.
 func SupportedRegion(region string) error {
-	for _, partition := range endpoints.Partitions() {
-		for _, partitionRegion := range partition.Regions() {
-			if region == partitionRegion {
-				return nil
-			}
-		}
+	if slices.ContainsFunc(endpoints.DefaultPartitions(), func(p endpoints.Partition) bool {
+		_, ok := p.Regions()[region]
+		return ok
+	}) {
+		return nil
 	}
 
 	return &InvalidRegionError{