Add support for fastapi instrumentation

CHANGELOG.md

@@ -6,6 +6,8 @@
     ([#253](https://github.com/microsoft/ApplicationInsights-Python/pull/253))
 - Use entrypoints instead of importlib to load instrumentations
     ([#254](https://github.com/microsoft/ApplicationInsights-Python/pull/254))
+- Add support for FastAPI instrumentation
+    ([#255](https://github.com/microsoft/ApplicationInsights-Python/pull/255))
 
 ## [1.0.0b10](https://github.com/microsoft/ApplicationInsights-Python/releases/tag/v1.0.0b10) - 2023-02-23
 

azure-monitor-opentelemetry/README.md

@@ -12,6 +12,7 @@ The following OpenTelemetry instrumentations come bundled in with the Azure moni
 
 * [OpenTelemetry Requests Instrumentation][opentelemetry_instrumentation_requests]
 * [OpenTelemetry Django Instrumentation][opentelemetry_instrumentation_django]
+* [OpenTelemetry FastApi Instrumentation][opentelemetry_instrumentation_fastapi]
 * [OpenTelemetry Flask Instrumentation][opentelemetry_instrumentation_flask]
 * [OpenTelemetry Psycopg2 Instrumentation][opentelemetry_instrumentation_psycopg2]
 
@@ -118,6 +119,7 @@ Samples are available [here][samples] to demonstrate how to utilize the above co
 [ot_sdk_python_view_examples]: https://github.com/open-telemetry/opentelemetry-python/tree/main/docs/examples/metrics/views
 [opentelemetry_instrumentation_requests]: https://github.com/open-telemetry/opentelemetry-python-contrib/tree/main/instrumentation/opentelemetry-instrumentation-requests
 [opentelemetry_instrumentation_django]: https://github.com/open-telemetry/opentelemetry-python-contrib/tree/main/instrumentation/opentelemetry-instrumentation-django
+[opentelemetry_instrumentation_fastapi]: https://github.com/open-telemetry/opentelemetry-python-contrib/tree/main/instrumentation/opentelemetry-instrumentation-fastapi
 [opentelemetry_instrumentation_flask]: https://github.com/open-telemetry/opentelemetry-python-contrib/tree/main/instrumentation/opentelemetry-instrumentation-flask
 [opentelemetry_instrumentation_psycopg2]: https://github.com/open-telemetry/opentelemetry-python-contrib/tree/main/instrumentation/opentelemetry-instrumentation-psycopg2
 [opentelemetry_spec_resource]: https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/resource/sdk.md#resource-sdk

azure-monitor-opentelemetry/azure/monitor/opentelemetry/_configure.py

@@ -36,6 +36,7 @@
 _INSTRUMENTATION_CONFIG_SUFFIX = "_config"
 _SUPPORTED_INSTRUMENTED_LIBRARIES = (
     "django",
+    "fastapi",
     "flask",
     "psycopg2",
     "requests",

azure-monitor-opentelemetry/samples/tracing/http_fastapi.py

@@ -0,0 +1,30 @@
+# -------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License in the project root for
+# license information.
+# --------------------------------------------------------------------------
+import fastapi
+from azure.monitor.opentelemetry import configure_azure_monitor
+
+# Configure Azure monitor collection telemetry pipeline
+configure_azure_monitor(
+    connection_string="<your-connection-string>",
+    disable_logging=True,
+    disable_metrics=True,
+    fastapi_config={"excluded_urls": "http://127.0.0.1:8000/exclude"},
+    tracing_export_interval_millis=15000,
+)
+
+app = fastapi.FastAPI()
+
+
+# Requests made to fastapi endpoints will be automatically captured
+@app.get("/")
+async def root():
+    return {"message": "Hello World"}
+
+
+# Telemetry from this endpoint will not be captured due to excluded_urls config above
+@app.get("/exclude")
+async def root():
+    return {"message": "Telemetry was not captured"}

azure-monitor-opentelemetry/setup.py

@@ -87,9 +87,10 @@
         "azure-monitor-opentelemetry-exporter>=1.0.0b12",
         "opentelemetry-instrumentation~=0.36b0",
         "opentelemetry-instrumentation-django~=0.36b0",
-        "opentelemetry-instrumentation-requests~=0.36b0",
+        "opentelemetry-instrumentation-fastapi~=0.36b0",
         "opentelemetry-instrumentation-flask~=0.36b0",
         "opentelemetry-instrumentation-psycopg2~=0.36b0",
+        "opentelemetry-instrumentation-requests~=0.36b0",
         "opentelemetry-api==1.15.0",
         "opentelemetry-sdk==1.15.0",
     ],

azure-monitor-opentelemetry/tests/instrumentation/test_fastapi.py

@@ -0,0 +1,21 @@
+# -------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License in the project root for
+# license information.
+# --------------------------------------------------------------------------
+
+import unittest
+
+from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor
+
+
+class TestFastApiInstrumentation(unittest.TestCase):
+    def test_instrument(self):
+        excluded_urls = "client/.*/info,healthcheck"
+        try:
+            FastAPIInstrumentor().instrument(excluded_urls=excluded_urls)
+        except Exception as ex:  # pylint: disable=broad-except
+            print(ex)
+            self.fail(
+                f"Unexpected exception raised when instrumenting {FastAPIInstrumentor.__name__}"
+            )

test-requirements.txt

@@ -1,5 +1,6 @@
 pytest
-psycopg2
-flask
 django
-requests
+fastapi
+flask
+psycopg2
+requests