# DeleteNetworkFirewallTransitGatewayAttachment
<a name="API_DeleteNetworkFirewallTransitGatewayAttachment"></a>

Deletes a transit gateway attachment from a Network Firewall. Either the firewall owner or the transit gateway owner can delete the attachment.

**Important**  
After you delete a transit gateway attachment, traffic will no longer flow through the firewall endpoints.

After you initiate the delete operation, use [DescribeFirewall](API_DescribeFirewall.md) to monitor the deletion status.

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

```
{
   "TransitGatewayAttachmentId": "string"
}
```

## Request Parameters
<a name="API_DeleteNetworkFirewallTransitGatewayAttachment_RequestParameters"></a>

For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

The request accepts the following data in JSON format.

 ** [TransitGatewayAttachmentId](#API_DeleteNetworkFirewallTransitGatewayAttachment_RequestSyntax) **   <a name="networkfirewall-DeleteNetworkFirewallTransitGatewayAttachment-request-TransitGatewayAttachmentId"></a>
Required. The unique identifier of the transit gateway attachment to delete.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `^tgw-attach-[0-9a-z]+$`   
Required: Yes

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

```
{
   "TransitGatewayAttachmentId": "string",
   "TransitGatewayAttachmentStatus": "string"
}
```

## Response Elements
<a name="API_DeleteNetworkFirewallTransitGatewayAttachment_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.

 ** [TransitGatewayAttachmentId](#API_DeleteNetworkFirewallTransitGatewayAttachment_ResponseSyntax) **   <a name="networkfirewall-DeleteNetworkFirewallTransitGatewayAttachment-response-TransitGatewayAttachmentId"></a>
The ID of the transit gateway attachment that was deleted.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `^tgw-attach-[0-9a-z]+$` 

 ** [TransitGatewayAttachmentStatus](#API_DeleteNetworkFirewallTransitGatewayAttachment_ResponseSyntax) **   <a name="networkfirewall-DeleteNetworkFirewallTransitGatewayAttachment-response-TransitGatewayAttachmentStatus"></a>
The current status of the transit gateway attachment deletion process.  
Valid values are:  
+  `CREATING` - The attachment is being created
+  `DELETING` - The attachment is being deleted
+  `DELETED` - The attachment has been deleted
+  `FAILED` - The attachment creation has failed and cannot be recovered
+  `ERROR` - The attachment is in an error state that might be recoverable
+  `READY` - The attachment is active and processing traffic
+  `PENDING_ACCEPTANCE` - The attachment is waiting to be accepted
+  `REJECTING` - The attachment is in the process of being rejected
+  `REJECTED` - The attachment has been rejected
Type: String  
Valid Values: `CREATING | DELETING | DELETED | FAILED | ERROR | READY | PENDING_ACCEPTANCE | REJECTING | REJECTED` 

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

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

 ** InternalServerError **   
Your request is valid, but Network Firewall couldn't perform the operation because of a system problem. Retry your request.   
HTTP Status Code: 500

 ** InvalidRequestException **   
The operation failed because of a problem with your request. Examples include:   
+ You specified an unsupported parameter name or value.
+ You tried to update a property with a value that isn't among the available types.
+ Your request references an ARN that is malformed, or corresponds to a resource that isn't valid in the context of the request.
HTTP Status Code: 400

 ** ResourceNotFoundException **   
Unable to locate a resource using the parameters that you provided.  
HTTP Status Code: 400

 ** ThrottlingException **   
Unable to process the request due to throttling limitations.  
HTTP Status Code: 400

## See Also
<a name="API_DeleteNetworkFirewallTransitGatewayAttachment_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/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/network-firewall-2020-11-12/DeleteNetworkFirewallTransitGatewayAttachment)