Qustion Regarding multiple Child Fetchers

[manu-mnnit]

Hi @paulbakker ,

I have created multiple child fetchers in my project. It looks they run sequentially, is there any way to run them in parallel ?

E.g.
schema:
type Query{
a: [Entity]
}
type Entity{
field1: Int
field2: [b]
field3: [c]
}

type b{
f1: Int
}
type c{
f2: String
}

@dgsData(ParentType="Query", field="a")
List func1(){
return [a];
}

@dgsData(ParentType="Entity", field="b")
List func2(){
return [b];
}
@dgsData(ParentType="Entity", field="c")
List funn3(){
return [c];
}

[Nokinori]

Hi @manu-mnnit,
I think, problem is that your code was written in blocking style. As much as I can say according code example in the question)
So the simplest solution is wrapping your code in CompletableFuture.

Like this:

@DgsData(ParentType="Query", field="a")
CompletableFuture<List<Entity>> func1()  {
    return CompletableFuture.supplyAsync(() -> Entity());
}

@DgsData(ParentType="Entity", field="b")
CompletableFuture<List<String>> func2() {
    return CompletableFuture.supplyAsync(() -> "b")
}

Check this docs for more info:

• https://netflix.github.io/dgs/datafetching/
• https://netflix.github.io/dgs/data-loaders/