> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blinkops.com/llms.txt
> Use this file to discover all available pages before exploring further.

# EC2 Describe Transit Gateways

Describes one or more transit gateways. By default, all transit gateways are described. Alternatively, you can filter the results.

<Note>
  External Documentation

  To learn more, visit the [AWS documentation](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeTransitGateways.html).
</Note>

## Basic Parameters

<div className="integrations-table">
  | Parameter           | Description                                                                                                                                                                                                                                                               |
  | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | AWS Region(s)       | Enter the desired AWS Region(s).<br /><br />To execute the action in multiple regions, provide a comma-separated list.<br />For example: `us-east-1,eu-west-2`.<br /><br />If you wish to run the action in all available regions, use the asterisk symbol (`*`) instead. |
  | Transit Gateway IDs | The IDs of the transit gateways.                                                                                                                                                                                                                                          |
</div>

## Advanced Parameters

<div className="integrations-table">
  | Parameter                        | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |                                                                                                                                                                                                 |                                                                                                                                                                                                 |                                                                                                         |                                                                                                                                        |                                                                                                                                                                                         |              |               |                |                                                                                |
  | -------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | ------------- | -------------- | ------------------------------------------------------------------------------ |
  | Disable XML To JSON Auto Convert | When checked, XML responses are not automatically converted into JSON format.                                                                                                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                 |                                                                                                                                                                                                 |                                                                                                         |                                                                                                                                        |                                                                                                                                                                                         |              |               |                |                                                                                |
  | Dry Run                          | Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is `DryRunOperation`. Otherwise, it is `UnauthorizedOperation`.                                                                                                                                                                                                                                                  |                                                                                                                                                                                                 |                                                                                                                                                                                                 |                                                                                                         |                                                                                                                                        |                                                                                                                                                                                         |              |               |                |                                                                                |
  | Filters                          | One or more filters. The possible values are:<br /><br />- `options.propagation-default-route-table-id` - The ID of the default propagation route table.<br /><br />- `options.amazon-side-asn` - The private ASN for the Amazon side of a BGP session.<br /><br />- `options.association-default-route-table-id` - The ID of the default association route table.<br /><br />- `options.auto-accept-shared-attachments` - Indicates whether there is automatic acceptance of attachment requests ( `enable` \\ | `disable`).<br /><br />- `options.default-route-table-association` - Indicates whether resource attachments are automatically associated with the default association route table ( `enable` \\ | `disable`).<br /><br />- `options.default-route-table-propagation` - Indicates whether resource attachments automatically propagate routes to the default propagation route table ( `enable` \\ | `disable`).<br /><br />- `options.dns-support` - Indicates whether DNS support is enabled ( `enable` \\ | `disable`).<br /><br />- `options.vpn-ecmp-support` - Indicates whether Equal Cost Multipath Protocol support is enabled ( `enable` \\ | `disable`).<br /><br />- `owner-id` - The ID of the Amazon Web Services account that owns the transit gateway.<br /><br />- `state` - The state of the transit gateway ( `available` \\ | `deleted` \\ | `deleting` \\ | `modifying` \\ | `pending`).<br /><br />- `transit-gateway-id` - The ID of the transit gateway. |
  | Max Results                      | The maximum number of results to return with a single call. To retrieve the remaining results, make another call with the returned `nextToken` value.                                                                                                                                                                                                                                                                                                                                                           |                                                                                                                                                                                                 |                                                                                                                                                                                                 |                                                                                                         |                                                                                                                                        |                                                                                                                                                                                         |              |               |                |                                                                                |
  | Next Token                       | The token for the next page of results.                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |                                                                                                                                                                                                 |                                                                                                                                                                                                 |                                                                                                         |                                                                                                                                        |                                                                                                                                                                                         |              |               |                |                                                                                |
</div>

## Example Output

```json theme={"dark"}
{
	"NextToken": "string",
	"TransitGateways": [
		{
			"CreationTime": "date-time",
			"Description": "string",
			"Options": {
				"AmazonSideAsn": 0,
				"AssociationDefaultRouteTableId": "string",
				"AutoAcceptSharedAttachments": "string",
				"DefaultRouteTableAssociation": "string",
				"DefaultRouteTablePropagation": "string",
				"DnsSupport": "string",
				"MulticastSupport": "string",
				"PropagationDefaultRouteTableId": "string",
				"TransitGatewayCidrBlocks": [
					"string"
				],
				"VpnEcmpSupport": "string"
			},
			"OwnerId": "string",
			"State": "string",
			"Tags": [
				{
					"Key": "string",
					"Value": "string"
				}
			],
			"TransitGatewayArn": "string",
			"TransitGatewayId": "string"
		}
	]
}
```

## Workflow Library Example

[Ec2 Describe Transit Gateways with Aws and Send Results Via Email](https://library.blinkops.com/workflows/ec2-describe-transit-gateways-with-aws-and-send-results-via-email)

<div className="iframe-wrapper">
  <div className="iframe-media">
    <img src="https://mintcdn.com/blinkops-2/ojHYuDeYX5FWuN8a/img/Icons/play-box.svg?fit=max&auto=format&n=ojHYuDeYX5FWuN8a&q=85&s=b8af968e71438a9499c3223c9bd29fb2" alt="Workflow Library" width="16" height="16" data-path="img/Icons/play-box.svg" />

    Preview this Workflow on desktop
  </div>

  <iframe className="iframe" src="https://library.blinkops.com/workflows/ec2-describe-transit-gateways-with-aws-and-send-results-via-email/canvas" />
</div>