Get response headers from subgraph services in Apollo router

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1

I am currently running a federation service and in the process of migrating to Apollo-router. Currently, I am stuck on getting response headers in the execution_service stage. My Authentication-service handles user login and on successful login I set a response header with the key token and the value is the corresponding JWT. I want to be able to get this header in my Apollo router and then subsequently store that in a cookie on the browser and then send that cookie (by converting it to a header) and passing it to subgraphs on subsequent requests.

How do I go about this?

2

You should be able to have the headers coming into the Apollo Router propagate to downstream services (docs). This could be used to forward the cookie header to downstream subgraphs.