Builds the client link chain: refresh-and-retry → auth header → HTTP.
refreshLink sits outermost so its replayed operation passes back through authLink and picks up the refreshed token.
refreshLink
authLink
An ApolloLink for the link option of ApolloClient.
ApolloLink
link
ApolloClient
Builds the client link chain: refresh-and-retry → auth header → HTTP.
refreshLinksits outermost so its replayed operation passes back throughauthLinkand picks up the refreshed token.