When locally Invoking functions via serverless-offline (cognito events, specifically), I received ReferenceError: Headers is not defined. This is being caused by the Fetch API Headers class and potentially missing polyfill for the API in my Node environment (specifically v20).
As such, I have added node-fetch to bring Fetch API compatibility.
Motivation and Context
When using serverless-offline and running local Invoke within a Python environment, I was getting the following error:
Debug: internal, implementation, error
ReferenceError: Headers is not defined
at handler (file:///Users/collinmeadows/Development/myapp/node_modules/serverless-offline/src/lambda/routes/invocations/invocationsRoute.js:18:29)
at exports.Manager.execute (/Users/collinmeadows/Development/myapp/node_modules/@hapi/hapi/lib/toolkit.js:57:29)
at Object.internals.handler (/Users/collinmeadows/Development/myapp/node_modules/@hapi/hapi/lib/handler.js:46:48)
at exports.execute (/Users/collinmeadows/Development/myapp/node_modules/@hapi/hapi/lib/handler.js:31:36)
at Request._lifecycle (/Users/collinmeadows/Development/myapp/node_modules/@hapi/hapi/lib/request.js:370:68)
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async Request._execute (/Users/collinmeadows/Development/myapp/node_modules/@hapi/hapi/lib/request.js:280:9)
How Has This Been Tested?
I am actively running serverless-offline within multiple stacks. I made this change locally within node_modules/serverless-offline and re-invoked the function with no errors.
Description
When locally Invoking functions via serverless-offline (cognito events, specifically), I received
ReferenceError: Headers is not defined
. This is being caused by the Fetch API Headers class and potentially missing polyfill for the API in my Node environment (specifically v20).As such, I have added
node-fetch
to bring Fetch API compatibility.Motivation and Context
When using serverless-offline and running local Invoke within a Python environment, I was getting the following error:
How Has This Been Tested?
I am actively running serverless-offline within multiple stacks. I made this change locally within node_modules/serverless-offline and re-invoked the function with no errors.