How to Make an HTTP Request in AWS Lambda Using Python

The requests module for Python is very useful in helping simplify HTTP/s requests from Python, but how would you use it in an AWS Lambda script?

Option 1 – Use requests import

The requests library is very popular among Python enthusiasts.

You will need to create a custom lambda layer and include requests

This will allow you to use import requests in your code.

Download the folder package

pip install requests -t .

Run this command on your local machine, then zip your working directory and upload to AWS.

Make the HTTP request

import requests

response = requests.get("https://andrewodendaal.com")

Option 2 – Use urllib3 import

If you don’t want to create a custom lambda layer, then you can import the urllib3 library directly.

import urllib3

http = urllib3.PoolManager()
r = http.request('GET', 'http://andrewodendaal.com')

#r.data
#r.status

Option 3 – Old way with botocore.vendored

While it is not immediately possible to just do a import requests and start using the module, it is possible to import it from the botocore.vendored top-level package.

Python on Lambda exposes a module for common packages called botocore that you can call in any Lambda script.

Using the requests library in Lambda

from botocore.vendored import requests

Once you have imported the requests library from botocore.vendored, you will be able to make use of all the functionality you are familiar with.

Make the HTTP request

from botocore.vendored import requests

response = requests.get("https://andrewodendaal.com")