Queries and Mutations
GraphQL 서버에 어떻게 query 할 것인가?
example query
arguments
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| { human(id: "1000"){ name height } }
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alias
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| { empireHero: hero(episode: EMPIRE){ name } jediHero:hero(eposode:JEDI){ name } }
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fragments
reusable units called fragments
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| query HeroComparison($first: Int = 3){ leftComparison: hero(episode: EMPIRE){ ...comparisonFields } rightComparison: hero(episode: JEDI){ ...comparisonFields } }
fragment comparisonFields on Character{ name friendConnection(first: $first){ totalCount edges{ node{ name } } } }
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varables
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| query HeroNameAndFriends($episode: Episode){ hero(eposide: $episode){ name friends{ name } } }
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now, in our client code we can simply pass a different variable rather than needing to constructor an entirely new query.
directives
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| query Hero($episode: Episode, $withFriends: hero(episode: $episode){ hero(episode: $episode){ name friends @include(if:$withFriends){ name } } })
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Schemas and Types
Validation
Execution
Introspection
Comments