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# Copyright 2017 Google, Inc
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
require "sinatra"
# [START trace_configure]
require "google/cloud/trace"
Google::Cloud.configure do |config|
# Stackdriver Trace specific parameters
config.trace.project_id = "YOUR-PROJECT-ID"
config.trace.keyfile = "/path/to/service-account.json"
end
# [END trace_configure]
# [START trace_middleware]
require "google/cloud/trace"
use Google::Cloud::Trace::Middleware
# [END trace_middleware]
get "/" do
"hello world"
end
get "/trace" do
# [START trace_custom_span]
Google::Cloud::Trace.in_span "my_task" do |_span|
# Insert task
Google::Cloud::Trace.in_span "my_subtask" do |subspan|
# Insert subtask
end
end
# [END trace_custom_span]
end
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