Serverless Python Webhooks handler on AWS with Lambda Function URLs

Question

I need to upload a video file, which is available via the download URL of a webhook event.  I am looking for a solution to directly put/stream a video file into an S3 bucket using a Python webhooks handler lambda URL function. Is this possible? Here is the script:

```
import certifi
import boto3
import urllib3

def lambda_handler(event, context):
    body = json.loads(event["body"])
    recording_files = body["payload"]["object"]["recording_files"]
    download_token = body["download_token"]
    bucket = 'tstbucket00'  #s3 bucket
    upload_download_key = 'folder/folder' #desired s3 path or filename
    
    for idx in range(len(recording_files)):
       recording_files[idx]= recording_files[idx]["download_url"] +'?access_token=' + download_token
       s3=boto3.client('s3',aws_access_key_id=y_access_key,  aws_secret_access_key=y_secret_key)
       http=urllib3.PoolManager(cert_reqs='CERT_REQUIRED',ca_certs=certifi.where())
       get_recording = http.request('GET', recording_files[idx]l,preload_content=False)
       s3.upload_fileobj(get_recording, bucket, upload_download_key)
```

The about script successfully creates a folder in the s3 bucket but does not directly stream the mp4 file into s3 bucket.

Answer

I think the issue is that you're passing the entire `get_recording` object to `upload_fileobj` where you should be passing the data. Perhaps the final line should be `s3.upload_fileobj(get_recording.data, bucket, upload_download_key)` ?

Also: Where you're creating the `s3` object you don't need to specify the access and secret keys if the Lambda function has the appropriate IAM role attached to it. You can just do `s3 = boto3.client('s3')` which is much simpler and means you don't have to set up the credentials yourself.

Answer

Thank you so much for your thoughtful answer @Brettski@AWS! It really helped me figure out the issue. I am a newbie to working with s3 and you've made the development experience amazing. That side, it turns out that the script was uploading as expected. I just needed to add the .mp4 file extension to the filename. Here is the snippet I used in my testing in the terminal:

```
zoom_access_token = " Your_Token"
download_url = "Your_download_URL"
new_download_url = download_url +'?access_token=' + zoom_access_token
bucket = 'Yourbucket00' #your s3 bucket
upload_download_key = 'folder/folder.mp4' #your desired s3 path or filename

s3=boto3.client('s3',aws_access_key_id=y_access_key, aws_secret_access_key=y_secret_key)
http=urllib3.PoolManager(cert_reqs='CERT_REQUIRED',ca_certs=certifi.where())
get_recording = http.request('GET', new_download_url,preload_content=False)
s3.upload_fileobj(get_recording, bucket, upload_download_key)
```

Serverless Python Webhooks handler on AWS with Lambda Function URLs

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