doesn't work with apollo's automatic persisted queries(APQ)

[chirag04]

https://www.apollographql.com/docs/apollo-server/performance/apq/

APQ relies on extensions in the query body(POST) or query(GET) to enabled persisted queries. After some digging I realized: we use express-graphql to parse the request https://github.com/ef-eng/express-graphql-query-rewriter/blob/master/src/index.ts#L69. which swallows the extensions key in the request body.

consumers could parse the body before express-graphql-query-rewriter gets it bu the downside of this is:

1. Query stored in APQ cache will be the rewritten one and not what the consumer actually passed.
2. Adding or modifying a rewriter won't have any impact because the query will be cached already in the APQ cache.

I'm wondering if we can leverage apollo's request pipeline for this: https://www.apollographql.com/docs/apollo-server/integrations/plugins/#apollo-server-event-reference