Set header value for proxied request programatically

Serverless Framework
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3

I’ve found an approach to being able to use the serverless framework and be able to hard code integration request header values and utilise HTTP_PROXY instead of maintaining a LAMBDA_PROXY.

I had to write an intermediary python script to programmatically edit the Cloudformation that the serverless tool creates.

Deployment steps as follows:

  1. Use the yml fucntion configuration defined in the original post.
  2. Create a package, sls package --package <YOUR_PACKAGE_NAME> --stage <STAGE>
  3. Run the python script to change the integration.request.header.Authorization value in the <YOUR_PACKAGE_NAME>/cloudformation-template-update-stack.json and <YOUR_PACKAGE_NAME>/serverless-state.json files
  4. Deploy the package sls deploy --package <YOUR_PACKAGE_NAME> --stage <STAGE>

I bundled these commands together in a Makefile so I could call a single command for packaging, updating and deploying:

make deploy-<STAGE>