Allow a user-provided `logger` for Server, Gateway and AER#3894

Merged

abernix merged 19 commits into

release-2.12.0from

abernix/logger-support

Mar 17, 2020

Commits on Mar 16, 2020

Switch multi-argument `logger` pattern to single parameter invocations.
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Decompose `GatewayConfigBase` into types in preparation for `logger`.
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gateway: Introduce `Logger` type and expose on `logger` config.
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tests: test various popular loggers: log4js, winston, bunyan, loglevel.
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Add optional `logger` to `GraphQLServiceContext` and `GraphQLRequestContext`.
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Introduce optional `logger` property for `apollo-engine-reporting`.
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Introduce optional `logger` for `ApolloServer` class.
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To support Node.js 6, use older version of `log4js` for testing.
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ResponseCache: when available, use `requestContext.logger` to log.
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gateway: when set, log using `requestContext.logger` in `executeQueryPlan`.
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Make `logger` required on `GraphQLServiceContext` + `GraphQLRequestContext`.
abernix
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Commits on Mar 17, 2020

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