Install Python module for Lambda using Cloud9 - Lab 77

100 days in Cloud

Lab 77

Install Python module for Lambda using Cloud9

Services Covered

Lambda
Cloud9

Lab description

For a Lambda function to work with the request library it needs to be uploaded as a separate module. To do that a new Cloud9 environment will be started and in it, a pip commands executed in a terminal. Then modules will be packed and upload to Lambda function.

Create a Lambda function
Create Cloud9 environment
Download packages using Terminal and pip
Upload libraries in to Lambda

Lab date

15-10-2021

Prerequisites

AWS account

Lab steps

Create a new Lambda function with Python som runtime.

import json
 import requests
 def lambda_handler(event, context):    
r = requests.get('https://github.com')     
print(r.status_code)   
 print(r.headers['Date'])    
print(r.headers['server'])    
return {        
'statusCode': 200,        
'body': json.dumps('success')    }

If you try and test it will respond with error message because request package is not part of Lambda Python standard library.

Go to Cloud9 and create a new environment. Choose direct access with EC2 instance. This will take some time:
Import the Lambda function to Cloud9. On the left side click on then choose your Lambda and install_request_module then download.
Install request library in Terminal:

Run those commands:

pip install --target ~/environment/<<LAMBDA NAME>>/ requests

Then to zip the library run:

zip -r ../my-deployment-package.zip *

Download that zip file

Back in Lambda upload that zip package and test your function:
Delete your environment in Cloud9.

Lab files and Github link

Acknowledgements

Whizlabs

Install Python module for Lambda using Cloud9 – Lab 77