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FastAPI is a modern, high-performance web framework for building APIs with Python.

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Installation

🐍 Don’t forget to install the AppSignal for Python package in your application first.
First, install the opentelemetry-instrumentation-fastapi package. To add it to your project, add the following line to your requirements.txt file: 
# requirements.txt
opentelemetry-instrumentation-fastapi

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Setup

Start AppSignal and define your FastAPI application. Then use the FastAPIInstrumentor to instrument your FastAPI application: 
# app.py
from fastapi import FastAPI
from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor

import appsignal
appsignal.start()

app = FastAPI()

# ... your app's code goes here ...

FastAPIInstrumentor().instrument_app(app)