With start apm in docker, I just set up agent in fastapi. Then I run app with uvicorn, it hangs.
To Reproduce

1. Start Service with docker compose Reference

• Test apm status
  

2. Run the following simple FastAPI app:

from fastapi import FastAPI from elasticapm.contrib.starlette import make_apm_client, ElasticAPM import uvicorn apm = make_apm_client({'SERVICE_NAME': 'test', 'SERVER_URL': 'http://0.0.0.0:8200'}) app = FastAPI() app.add_middleware(ElasticAPM, client=apm) @app.get("/") def read_root(): return {"Hello": "World"} if __name__ == '__main__': uvicorn.run(app, host='0.0.0.0', port=8000) 

• Result
  

Environment

• OS: Mac
• Python version: 3.7.10
• Framework and version: fastapi==0.66.0
• APM Server version: image: docker.elastic.co/apm/apm-server:7.13.2
• Agent version: elastic-apm==6.3.0