chore(deps): bump apollo-server-express from 2.19.2 to 2.21.1

[dependabot]

Bumps apollo-server-express from 2.19.2 to 2.21.1.

Changelog

Sourced from apollo-server-express's changelog.

v2.21.1

• apollo-server-lambda: The onHealthCheck option did not previously work. Additionally, health checks (with onHealthCheck or without) didn't work in all Lambda contexts, such as behind Custom Domains; the path check is now more flexible. [Issue #3999](apollographql/apollo-server#3999) [PR #4969](apollographql/apollo-server#4969) [Issue #4891](apollographql/apollo-server#4891) [PR #4892](apollographql/apollo-server#4892)
• The debug option to new ApolloServer (which adds stack traces to errors) now affects errors that come from requests executed with server.executeOperation (and its wrapper apollo-server-testing), instead of just errors that come from requests executed over HTTP. [Issue #4107](apollographql/apollo-server#4107) [PR #4948](apollographql/apollo-server#4948)
• Bump version of @apollographql/graphql-playground-html to v1.6.27 and @apollographql/graphql-playground-react to v1.7.39 to resolve incorrectly rendered CDN URL when Playground version was false-y. [PR #4932](apollographql/apollo-server#4932) [PR #4955](apollographql/apollo-server#4955) [Issue #4937](apollographql/apollo-server#4937)

v2.21.0

• Apollo Server can now be installed with graphql@15 without causing peer dependency errors or warnings. (Apollo Server has a file upload feature which was implemented as a wrapper around the graphql-upload package. We have been unable to upgrade our dependency on that package due to backwards-incompatible changes in later versions, and the version we were stuck on did not allow graphql@15 as a peer dependency. We have now switched to a fork of that old version called @apollographql/graphql-upload-8-fork that allows graphql@15.) Also bump the graphql-tools dependency from 4.0.0 to 4.0.8 for graphql@15 support. [Issue #4865](apollographql/apollo-server#4865)

v2.20.0

• apollo-server: Previously, ApolloServer.stop() functioned like net.Server.close() in that it did not close idle connections or close active connections after a grace period. This meant that trying to await ApolloServer.stop() could hang indefinitely if there are open connections. Now, this method closes idle connections, and closes active connections after 10 seconds. The grace period can be adjusted by passing the new stopGracePeriodMillis option to new ApolloServer, or disabled by passing Infinity (though it will still close idle connections). Note that this only applies to the "batteries-included" ApolloServer in the apollo-server package with its own built-in Express and HTTP servers. [PR #4908](apollographql/apollo-server#4908) [Issue #4097](apollographql/apollo-server#4097)
• apollo-server-core: When used with ApolloGateway, ApolloServer.stop now invokes ApolloGateway.stop. (This makes sense because ApolloServer already invokes ApolloGateway.load which is what starts the behavior stopped by ApolloGateway.stop.) Note that @apollo/gateway 0.23 will expect to be stopped in order for natural program shutdown to occur. [PR #4907](apollographql/apollo-server#4907) [Issue #4428](apollographql/apollo-server#4428)
• apollo-server-core: Avoid instrumenting schemas for the old graphql-extensions library unless extensions are provided. [PR #4893](apollographql/apollo-server#4893) [Issue #4889](apollographql/apollo-server#4889)
• [email protected]: The shouldReadFromCache and shouldWriteToCache hooks were always documented as returning ValueOrPromise<boolean> (ie, that they could be either sync or async), but they actually only worked if they returned a bool. Now they can be either sync or async as intended. [PR #4890](apollographql/apollo-server#4890) [Issue #4886](apollographql/apollo-server#4886)
• [email protected]: The RESTDataSource.trace method is now protected instead of private to allow more control over logging and metrics. [PR #3940](apollographql/apollo-server#3940)

Commits

• 9941c8f Release
• 2397291 Release
• 80a9747 apollo-server-express: mention graphql-js in README
• 0a4646c chore(deps): update dependency @apollographql/graphql-playground-html to v1.6...
• 456487f Release
• ae81d55 Release
• 127699b Bump graphql-tools dependency from 4.0.0 to 4.0.8
• 26279de Release
• 3642ce8 Release
• baf9b25 Release
• Additional commits viewable in compare view

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