# GetApplication
<a name="API_GetApplication"></a>

**Note**  
 AWS Migration Hub is no longer open to new customers as of November 7, 2025. For capabilities similar to AWS Migration Hub, explore [AWS Migration Hub](https://aws.amazon.com/transform).

Gets an AWS Migration Hub Refactor Spaces application.

## Request Syntax
<a name="API_GetApplication_RequestSyntax"></a>

```
GET /environments/EnvironmentIdentifier/applications/ApplicationIdentifier HTTP/1.1
```

## URI Request Parameters
<a name="API_GetApplication_RequestParameters"></a>

The request uses the following URI parameters.

 ** [ApplicationIdentifier](#API_GetApplication_RequestSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-request-uri-ApplicationIdentifier"></a>
The ID of the application.  
Length Constraints: Fixed length of 14.  
Pattern: `app-[0-9A-Za-z]{10}`   
Required: Yes

 ** [EnvironmentIdentifier](#API_GetApplication_RequestSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-request-uri-EnvironmentIdentifier"></a>
The ID of the environment.   
Length Constraints: Fixed length of 14.  
Pattern: `env-[0-9A-Za-z]{10}`   
Required: Yes

## Request Body
<a name="API_GetApplication_RequestBody"></a>

The request does not have a request body.

## Response Syntax
<a name="API_GetApplication_ResponseSyntax"></a>

```
HTTP/1.1 200
Content-type: application/json

{
   "ApiGatewayProxy": { 
      "ApiGatewayId": "string",
      "EndpointType": "string",
      "NlbArn": "string",
      "NlbName": "string",
      "ProxyUrl": "string",
      "StageName": "string",
      "VpcLinkId": "string"
   },
   "ApplicationId": "string",
   "Arn": "string",
   "CreatedByAccountId": "string",
   "CreatedTime": number,
   "EnvironmentId": "string",
   "Error": { 
      "AccountId": "string",
      "AdditionalDetails": { 
         "string" : "string" 
      },
      "Code": "string",
      "Message": "string",
      "ResourceIdentifier": "string",
      "ResourceType": "string"
   },
   "LastUpdatedTime": number,
   "Name": "string",
   "OwnerAccountId": "string",
   "ProxyType": "string",
   "State": "string",
   "Tags": { 
      "string" : "string" 
   },
   "VpcId": "string"
}
```

## Response Elements
<a name="API_GetApplication_ResponseElements"></a>

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [ApiGatewayProxy](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-ApiGatewayProxy"></a>
The endpoint URL of the API Gateway proxy.   
Type: [ApiGatewayProxyConfig](API_ApiGatewayProxyConfig.md) object

 ** [ApplicationId](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-ApplicationId"></a>
The unique identifier of the application.  
Type: String  
Length Constraints: Fixed length of 14.  
Pattern: `app-[0-9A-Za-z]{10}` 

 ** [Arn](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-Arn"></a>
The Amazon Resource Name (ARN) of the application.  
Type: String  
Length Constraints: Minimum length of 20. Maximum length of 2048.  
Pattern: `arn:aws:refactor-spaces:[a-zA-Z0-9\-]+:\w{12}:[a-zA-Z_0-9+=,.@\-_/]+` 

 ** [CreatedByAccountId](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-CreatedByAccountId"></a>
The AWS account ID of the application creator.   
Type: String  
Length Constraints: Fixed length of 12.  
Pattern: `\d{12}` 

 ** [CreatedTime](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-CreatedTime"></a>
A timestamp that indicates when the application is created.   
Type: Timestamp

 ** [EnvironmentId](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-EnvironmentId"></a>
The unique identifier of the environment.  
Type: String  
Length Constraints: Fixed length of 14.  
Pattern: `env-[0-9A-Za-z]{10}` 

 ** [Error](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-Error"></a>
Any error associated with the application resource.   
Type: [ErrorResponse](API_ErrorResponse.md) object

 ** [LastUpdatedTime](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-LastUpdatedTime"></a>
A timestamp that indicates when the application was last updated.   
Type: Timestamp

 ** [Name](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-Name"></a>
The name of the application.  
Type: String  
Length Constraints: Minimum length of 3. Maximum length of 63.  
Pattern: `(?!app-)[a-zA-Z0-9]+[a-zA-Z0-9-_ ]+` 

 ** [OwnerAccountId](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-OwnerAccountId"></a>
The AWS account ID of the application owner (which is always the same as the environment owner account ID).  
Type: String  
Length Constraints: Fixed length of 12.  
Pattern: `\d{12}` 

 ** [ProxyType](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-ProxyType"></a>
The proxy type of the proxy created within the application.   
Type: String  
Valid Values: `API_GATEWAY` 

 ** [State](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-State"></a>
The current state of the application.   
Type: String  
Valid Values: `CREATING | ACTIVE | DELETING | FAILED | UPDATING` 

 ** [Tags](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-Tags"></a>
The tags assigned to the application. A tag is a label that you assign to an AWS resource. Each tag consists of a key-value pair.   
Type: String to string map  
Map Entries: Minimum number of 0 items. Maximum number of 50 items.  
Key Length Constraints: Minimum length of 1. Maximum length of 128.  
Key Pattern: `(?!aws:).+.*`   
Value Length Constraints: Minimum length of 0. Maximum length of 256.

 ** [VpcId](#API_GetApplication_ResponseSyntax) **   <a name="migrationhubrefactorspaces-GetApplication-response-VpcId"></a>
The ID of the virtual private cloud (VPC).   
Type: String  
Length Constraints: Minimum length of 12. Maximum length of 21.  
Pattern: `vpc-[-a-f0-9]{8}([-a-f0-9]{9})?` 

## Errors
<a name="API_GetApplication_Errors"></a>

For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** AccessDeniedException **   
The user does not have sufficient access to perform this action.   
HTTP Status Code: 403

 ** InternalServerException **   
An unexpected error occurred while processing the request.  
HTTP Status Code: 500

 ** ResourceNotFoundException **   
The request references a resource that does not exist.     
 ** ResourceId **   
The ID of the resource.   
 ** ResourceType **   
The type of resource. 
HTTP Status Code: 404

 ** ThrottlingException **   
Request was denied because the request was throttled.     
 ** QuotaCode **   
Service quota requirement to identify originating quota. Reached throttling quota exception.   
 ** RetryAfterSeconds **   
The number of seconds to wait before retrying.   
 ** ServiceCode **   
Service quota requirement to identify originating service. Reached throttling quota exception service code. 
HTTP Status Code: 429

 ** ValidationException **   
The input does not satisfy the constraints specified by an AWS service.   
HTTP Status Code: 400

## See Also
<a name="API_GetApplication_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/migration-hub-refactor-spaces-2021-10-26/GetApplication) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/migration-hub-refactor-spaces-2021-10-26/GetApplication)