pipprojectpkg 0.0.dev1

OpenCensus FastAPI Integration

Installation

pip install pipprojectpkg

Usage

from opencensus.ext.azure.trace_exporter import AzureExporter
from opencensus.trace.samplers import ProbabilitySampler
from fastAPIMiddleware import FastAPIMiddleware
import uvicorn
from fastapi import FastAPI, Request

app = FastAPI()

middleware = FastAPIMiddleware(
    app,
    exporter=AzureExporter(connection_string="InstrumentationKey=<InstrumentationKey>"),
    sampler=ProbabilitySampler(rate=1.0),
)

@app.get("/")
async def root(request:Request):
    return {"message": request.client.host}


if __name__=="__main__":
    uvicorn.run("fastAPISample:app", port=8888, reload=True, debug=True, workers=3)

Additional configuration can be provided, please read Customization for a complete reference.

app.config['OPENCENSUS'] = {
    'TRACE': {
        'SAMPLER': 'opencensus.trace.samplers.ProbabilitySampler(rate=1)',
        'EXPORTER': '''opencensus.ext.ocagent.trace_exporter.TraceExporter(
            service_name='foobar',
        )''',
    }
}

References

• OpenCensus Project