8 Best Practices for Building FastAPI and MongoDB Applications

DeveloperCenter · 2024-05-31T02:02:15.291Z

8 Best Practices for Building FastAPI and MongoDB Applications

Originally Published Apr 23, 2024

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FastAPI seamlessly integrates with MongoDB through the Motor library, enabling asynchronous database interactions.

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Author: Mark Smith

Alessio_Ruggi · 2024-07-31T12:16:08.523Z

I’m commenting only to point out that the link to github doesn’t seem to work

Mark_Smith · 2024-07-31T12:24:11.466Z

@Alessio_Ruggi Thanks for the heads-up! I’ve just fixed it.

Anuj_Upadhyaya · 2025-02-10T13:45:12.468Z

Hello @DeveloperCenter,

I followed these steps and the APIs were working fine until few months ago. Also, I have not used Motor and gone with pymongo[srv]. The mongo db is starting to throw connection timeout error intermittently. Following is my setup code:

def db_lifespan(app: FastAPI):
# Startup
server_api = ServerApi(‘1’)
app.mongodb_client = MongoClient(CONNECTION_STRING,
maxIdleTimeMS=600000,
maxConnecting=5,
timeoutMS=90000,
socketTimeoutMS=90000,
serverMonitoringMode=“poll”,
server_api=server_api)
app.database = app.mongodb_client.get_database(DB_NAME)
ping_response = app.database.command(“ping”)
if int(ping_response[“ok”]) != 1:
raise Exception(“Problem connecting to database cluster.”)
else:
logger.info(“Connected to database cluster.”)

yield

# Shutdown
app.mongodb_client.close()

Could anyone please help me out with the issue?

Anuj_Upadhyaya · 2025-06-30T07:09:00.662Z

I’m facing the same issue currently did you figure out the actual issue and a fix.