Add introspection fields during schema creation #183
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andreas
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Dec 28, 2019
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andreas
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andreas
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Thanks for raising this! The patch makes sense, though I have one suggestion (see comment).
| } | ||
| in | ||
| let types = Introspection.types_of_schema schema in | ||
| Introspection.add_built_in_fields schema types |
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How about leaving add_built_in_fields as is and simply call it from here?
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This solves a problem we saw at OneGraph when upgrading to the latest version of ocaml-graphql-server.
Our query times increased by ~60ms on every query after upgrading. We tracked down the cause to this commit b187eaa, which calls
types_of_schemaon every call toexecute. We have a lot of types, so it added a noticeable amount of latency.With this change,
types_of_schemais calculated only once when you construct the schema.