ddtrace_flask_auto_instrumentation_with_custom_span.py

1import os
2from flask import Flask
3from ddtrace import tracer
4
5# Datadog tracing is typically initialized automatically via the `ddtrace-run` 
6# command, but you can also interact with the tracer directly in your code.
7
8app = Flask(__name__)
9
10@app.route("/")
11def index():
12    # Use the tracer as a context manager to create manual spans
13    with tracer.trace("hello-world.check", resource="index") as span:
14        span.set_tag("my_tag", "my_value")
15        return "Hello, World!"
16
17if __name__ == "__main__":
18    # To run this with automatic instrumentation, you would use:
19    # ddtrace-run python app.py
20    app.run(port=5000)