How to return binary data from lambda function in AWS in Python?

Question

I cannot get python lambda to return binary data. The node-template for thumbnail images works fine but I cannot get a python lambda to work. Below is the relevant lines fro

Answer 1

I finally figured this out. Returning binary data from a python lambda is doable.

Follow the instructions here: https://aws.amazon.com/blogs/compute/binary-support-for-api-integrations-with-amazon-api-gateway/

Be sure to check the 'Use Lambda Proxy integration' when creating a new method.

Also be sure your python lambda response looks like:

return {'isBase64Encoded'   : True,
        'statusCode'        : 200,
        'headers'           : { 'Content-Type': content_type },
        'body'              : base64_encoded_binary_data}

THEN:

For each of your routes/methods issue:

apigateway update-integration-response --rest-api-id  --resource-id  --http-method POST --status-code 200 --patch-operations "[{\"op\" : \"replace\", \"path\" : \"/contentHandling\", \"value\" : \"CONVERT_TO_BINARY\"}]"

In the AWS console. The and can be seen in the API Gateway 'breadcrumbs' ex:

 = zdb7jsoey8
 = zy2b5g

THEN: You need to 'Deploy API'. From what I found only it only worked AFTER deploying the API.

Be sure you setup the 'Binary Media Types' before deploying.

Hint: Nice AWS shell terminal here: https://github.com/awslabs/aws-shell

pip install aws-shell