Long-running operations

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Some methods of the Dialogflow API return a long-running operation. These methods are asynchronous, and the operation may not be completed when the method returns a response. You can check on the status or cancel operations.

Get an operation status

The following shows how to poll an operation's status. If you have many operations to check, you should rate limit your calls or use the list method instead.

GET https://dialogflow.googleapis.com/API_VERSION/projects/my-gcp-project/operations/OPERATION_ID

curl -X GET \
     -H "Authorization: Bearer $(gcloud auth print-access-token)" \
     -H "x-goog-user-project: PROJECT_ID" \
     "https://dialogflow.googleapis.com/API_VERSION/projects/my-gcp-project/operations/OPERATION_ID"

$cred = gcloud auth print-access-token
$headers = @{ "Authorization" = "Bearer $cred"; "x-goog-user-project" = "PROJECT_ID" }

Invoke-WebRequest `
    -Method GET `
    -Headers $headers `
    -Uri "https://dialogflow.googleapis.com/API_VERSION/projects/my-gcp-project/operations/OPERATION_ID" | Select-Object -Expand Content

{
  "name": "projects/PROJECT_ID/operations/some-operation-name-OPERATION_ID",
  "metadata": {
    "@type": "type.googleapis.com/google.cloud.dialogflow.API_VERSION.SomeOperationType",
    "state": "DONE"
  },
  "done": true,
  ...
}

List and cancel operations

In addition to getting a specific operation, you can list and cancel operations. See the list and cancel methods for the Operations type.

The list results may contain operations unrelated to your current task, so be sure to filter the results.