http://cloudformation.{region}.amazonaws.com/#Action=SignalResourceSends a signal to the specified resource with a success or failure status. You can use the <code>SignalResource</code> operation in conjunction with a creation policy or update policy. CloudFormation doesn't proceed with a stack creation or update until resources receive the required number of signals or the timeout period is exceeded. The <code>SignalResource</code> operation is useful in cases where you want to send signals from anywhere other than an Amazon EC2 instance.
{
"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://cloudformation.{region}.amazonaws.com/#Action=SignalResource' \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://cloudformation.{region}.amazonaws.com/#Action=SignalResourceSends a signal to the specified resource with a success or failure status. You can use the <code>SignalResource</code> operation in conjunction with a creation policy or update policy. CloudFormation doesn't proceed with a stack creation or update until resources receive the required number of signals or the timeout period is exceeded. The <code>SignalResource</code> operation is useful in cases where you want to send signals from anywhere other than an Amazon EC2 instance.
{
"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://cloudformation.{region}.amazonaws.com/#Action=SignalResource' \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}