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| author | Eugen Wissner <belka@caraus.de> | 2020-06-03 07:20:38 +0200 |
|---|---|---|
| committer | Eugen Wissner <belka@caraus.de> | 2020-06-03 07:20:38 +0200 |
| commit | 93a04032886976b540f5fdb1417bd085a642f772 (patch) | |
| tree | 712dda8a81286e0e39719a25f798ce23bb574e69 /docs/tutorial/tutorial.lhs | |
| parent | d12577ae717512979c7654191ca65f25fc877907 (diff) | |
| download | graphql-93a04032886976b540f5fdb1417bd085a642f772.tar.gz | |
Resolve abstract types
Objects that can be a part of an union or interface should return
__typename as string.
Diffstat (limited to 'docs/tutorial/tutorial.lhs')
| -rw-r--r-- | docs/tutorial/tutorial.lhs | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/docs/tutorial/tutorial.lhs b/docs/tutorial/tutorial.lhs index 9ca2db0..9a2242e 100644 --- a/docs/tutorial/tutorial.lhs +++ b/docs/tutorial/tutorial.lhs @@ -42,7 +42,10 @@ First we build a GraphQL schema. > queryType :: ObjectType IO > queryType = ObjectType "Query" Nothing [] > $ HashMap.singleton "hello" -> $ Field Nothing (Out.NamedScalarType string) mempty hello +> $ Out.Resolver helloField hello +> +> helloField :: Field IO +> helloField = Field Nothing (Out.NamedScalarType string) mempty > > hello :: ActionT IO Value > hello = pure $ String "it's me" @@ -77,7 +80,10 @@ For this example, we're going to be using time. > queryType2 :: ObjectType IO > queryType2 = ObjectType "Query" Nothing [] > $ HashMap.singleton "time" -> $ Field Nothing (Out.NamedScalarType string) mempty time +> $ Out.Resolver timeField time +> +> timeField :: Field IO +> timeField = Field Nothing (Out.NamedScalarType string) mempty > > time :: ActionT IO Value > time = do @@ -140,8 +146,8 @@ Now that we have two resolvers, we can define a schema which uses them both. > > queryType3 :: ObjectType IO > queryType3 = ObjectType "Query" Nothing [] $ HashMap.fromList -> [ ("hello", Field Nothing (Out.NamedScalarType string) mempty hello) -> , ("time", Field Nothing (Out.NamedScalarType string) mempty time) +> [ ("hello", Out.Resolver helloField hello) +> , ("time", Out.Resolver timeField time) > ] > > query3 :: Text |