Narrow willSendRequest's parameter type #161
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It's a bit of a pain when implementing
willSendRequestin TypeScript with strict null checks, becauserequest.httpis typed as optional, even though its presence is guaranteed. We therefore have to do something likeIn this PR I've casted the request passed to this function to a narrower type with
httprequired, so that we can avoid the non-null assertion when implementing the method.Originally at: apollographql/apollo-server#3587