How to configure the REST connection to pass the access token in the header

Summary:

Hi Experts

I have a requirement to pass the access token while calling a service REST endpoints in a header "x-token-value" and this access token must be generated using one more REST endpoint whose response Json will have this {"acess_token":""}.

Can we configure REST connection to generate the access token from one endpoint and pass to the service REST endpoint.

I don't want to do this within the integration flow as this may need to store the client id and secret in the lookup, rather I'm looking to do this with inbuilt REST connections.

Please help me.

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