standalone_activity

Standalone Activity

This sample demonstrates Standalone Activities: Activities executed directly from a Client, without a Workflow.

To run, first see README.md for prerequisites. Standalone Activities require Temporal CLI v1.7.0+ and Temporal Server v1.31.0+.

Start a Temporal dev server in one terminal:

temporal server start-dev

In another terminal, start the Worker from this directory:

bundle exec ruby worker.rb

The Worker registers ComposeGreeting and polls the standalone-activity-sample Task Queue. No Workflows are required.

Execute a Standalone Activity

Run an Activity from the Client and block until the result is returned:

bundle exec ruby execute_activity.rb

Expected output:

Activity result: Hello, World!

Or use the Temporal CLI:

temporal activity execute \
  --type ComposeGreeting \
  --activity-id standalone-activity-id \
  --task-queue standalone-activity-sample \
  --start-to-close-timeout 10s \
  --input '"Hello"' \
  --input '"World"'

Start a Standalone Activity without waiting

Start an Activity, get back an ActivityHandle, and fetch the result later:

bundle exec ruby start_activity.rb

Or use the Temporal CLI:

temporal activity start \
  --type ComposeGreeting \
  --activity-id standalone-activity-id \
  --task-queue standalone-activity-sample \
  --start-to-close-timeout 10s \
  --input '"Hello"' \
  --input '"World"'

List Standalone Activities

List Standalone Activity Executions matching a List Filter:

bundle exec ruby list_activities.rb

Or use the Temporal CLI:

temporal activity list --query "TaskQueue = 'standalone-activity-sample'"

Count Standalone Activities

Count Standalone Activity Executions matching a List Filter:

bundle exec ruby count_activities.rb

Or use the Temporal CLI:

temporal activity count --query "TaskQueue = 'standalone-activity-sample'"