Here's a simple multi-threaded program in lambda function.
What’s In This Document
🚀 Create lambda function using chalice
from chalice import Chalice
import threading
import time
from datetime import datetime
app = Chalice(app_name='multithread-test')
app.debug = True
def run_thread(msg):
app.log.debug(f"Call {msg} and sleep, timestamp {datetime.now()}")
time.sleep(5)
@app.lambda_function(name='multithread-test')
def handler(event, context):
thread_list = list()
for i in range(0, 5):
msg = f'thread-{i}'
thread = threading.Thread(target=run_thread, args=(msg,))
thread_list.append(thread)
thread.start()
for t in thread_list:
t.join()
return "Done!"
- Create AWS chalice new project
⚡ $ chalice new-project multithread-test
- Deploy function
⚡ $ chalice deploy
Creating deployment package.
Creating IAM role: multithread-test-dev
Creating lambda function: multithread-test-dev-multithread-test
Resources deployed:
- Lambda ARN: arn:aws:lambda:ap-northeast-2:1111111111111:function:multithread-test-dev-multithread-test
🚀 Run test
- Invoke lambda function using aws-cli
⚡ $ aws lambda invoke --function-name multithread-test-dev-multithread-test --region ap-northeast-2 outfile
{
"StatusCode": 200,
"ExecutedVersion": "$LATEST"
}
🚀 Check result
Ref: https://github.com/vumdao/multithread-in-lambda
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