http://ec2.{region}.amazonaws.com/#Action=AssociateTransitGatewayMulticastDomain<p>Associates the specified subnets and transit gateway attachments with the specified transit gateway multicast domain.</p> <p>The transit gateway attachment must be in the available state before you can add a resource. Use <a href="https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeTransitGatewayAttachments.html">DescribeTransitGatewayAttachments</a> to see the state of the attachment.</p>
{
"success": true,
"data": {
"id": "abc123",
"created_at": "2025-01-01T00:00:00Z"
}
}{
"success": false,
"error": {
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters"
}
}1curl --request POST \2 --url 'http://ec2.{region}.amazonaws.com/#Action=AssociateTransitGatewayMulticastDomain' \3 --header 'accept: application/json' \4 --header 'content-type: application/json'1{2 "success": true,3 "data": {4 "id": "abc123",5 "created_at": "2025-01-01T00:00:00Z"6 }7}http://ec2.{region}.amazonaws.com/#Action=AssociateTransitGatewayMulticastDomain<p>Associates the specified subnets and transit gateway attachments with the specified transit gateway multicast domain.</p> <p>The transit gateway attachment must be in the available state before you can add a resource. Use <a href="https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeTransitGatewayAttachments.html">DescribeTransitGatewayAttachments</a> to see the state of the attachment.</p>
{
"success": true,
"data": {
"id": "abc123",
"created_at": "2025-01-01T00:00:00Z"
}
}{
"success": false,
"error": {
"code": "VALIDATION_ERROR",
"message": "Invalid request parameters"
}
}1curl --request POST \2 --url 'http://ec2.{region}.amazonaws.com/#Action=AssociateTransitGatewayMulticastDomain' \3 --header 'accept: application/json' \4 --header 'content-type: application/json'1{2 "success": true,3 "data": {4 "id": "abc123",5 "created_at": "2025-01-01T00:00:00Z"6 }7}