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# Copyright The OpenTelemetry Authors
#
# 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.
from flask import Flask, request
from opentelemetry.instrumentation.wsgi import collect_request_attributes
from opentelemetry.propagate import extract
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import (
BatchSpanProcessor,
ConsoleSpanExporter,
)
from opentelemetry.trace import (
SpanKind,
get_tracer_provider,
set_tracer_provider,
)
app = Flask(__name__)
set_tracer_provider(TracerProvider())
tracer = get_tracer_provider().get_tracer(__name__)
get_tracer_provider().add_span_processor(
BatchSpanProcessor(ConsoleSpanExporter())
)
@app.route("/server_request")
def server_request():
with tracer.start_as_current_span(
"server_request",
context=extract(request.headers),
kind=SpanKind.SERVER,
attributes=collect_request_attributes(request.environ),
):
print(request.args.get("param"))
return "served"
if __name__ == "__main__":
app.run(port=8082)
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