cloud_tasks.rb

require 'google/cloud/tasks/v2'

http_method = 'POST'
url = ''

project = ''
location = ''
queue = ''
parent = "projects/#{project}/locations/#{location}/queues/#{queue}"

http_request = ::Google::Cloud::Tasks::V2::HttpRequest.new
http_request.http_method = http_method
http_request.url = url

task = ::Google::Cloud::Tasks::V2::Task.new
task.http_request = http_request

request = ::Google::Cloud::Tasks::V2::CreateTaskRequest.new(parent: parent, task: task)
client = ::Google::Cloud::Tasks::V2::CloudTasks::Client.new

result = client.create_task request
puts result