Runpod•9mo ago

Run a function once when a worker starts

I have some code that I only want to run once when my serverless worker starts (i.e not everytime a request is made). What is the best way of doing this? Just executing the code outside of the handler?

import runpod
import time

# this code runs once, on startup

time.sleep(10)
print("setup complete")

def handler(event):
    # handler code
    return {"message": "Hello World"}

runpod.serverless.start({"handler": handler})

import runpod
import time

# this code runs once, on startup

time.sleep(10)
print("setup complete")

def handler(event):
    # handler code
    return {"message": "Hello World"}

runpod.serverless.start({"handler": handler})

import runpod
import time

# this code runs once, on startup

time.sleep(10)
print("setup complete")

def handler(event):
    # handler code
    return {"message": "Hello World"}

runpod.serverless.start({"handler": handler})

import runpod
import time

# this code runs once, on startup

time.sleep(10)
print("setup complete")

def handler(event):
    # handler code
    return {"message": "Hello World"}

runpod.serverless.start({"handler": handler})

neural-soupeOP•4/18/25, 11:11 AM

Never mind, found the answer here: https://docs.runpod.io/serverless/workers/handlers/overview#basic-handler-function

Overview | RunPod Documentation

Create and deploy serverless Handler Functions with RunPod, processing submitted inputs and generating output without managing server infrastructure, ideal for efficient, cost-effective, and rapid deployment of code.

Run a function once when a worker starts

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