flask_opentelemetry_instrumentation_with_console_trace_export.py

1from flask import Flask
2from opentelemetry.instrumentation.flask import FlaskInstrumentor
3from opentelemetry import trace
4from opentelemetry.sdk.trace import TracerProvider
5from opentelemetry.sdk.trace.export import (
6    BatchSpanProcessor,
7    ConsoleSpanExporter,
8)
9
10# Sets the global default tracer provider
11trace.set_tracer_provider(TracerProvider())
12
13# Configure a span processor to output to the console for demonstration
14trace.get_tracer_provider().add_span_processor(
15    BatchSpanProcessor(ConsoleSpanExporter())
16)
17
18app = Flask(__name__)
19
20# Instrument the Flask application
21FlaskInstrumentor().instrument_app(app)
22
23@app.route("/")
24def hello():
25    return "Hello World!"
26
27if __name__ == "__main__":
28    app.run(debug=True)