✅ - Use of union in GraphQL | AWS Amplify | Page 1

hearty hound Mar 30, 2023, 6:16 PM

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I'm trying to use a union in my GraphQL schema, however the codegen just outputs errors. Is it a bug or does Amplify not support it?

union EventUnion = Concert | Festival | Conference

type debuggingCodegen @model {
    id: ID!
    events: [Conference] ## <-- Works
    eventUn: [EventUnion] ## <-- Does NOT work
}

Error:

Unknown type "EventUnionInput". Did you mean "EventUnion", "LocationInput", "VenueInput", or "PersonInput"?

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I tried to manually create interface EventUnionInput, but that just causes more issues with codgen (it expects the input instead of the type).

Error: Unknown type EventUnion for field eventUn. Did you forget to add the @model directive

kind flower Mar 31, 2023, 5:12 PM

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Hey 👋 unfortunately Unions are not currently supported https://github.com/aws-amplify/amplify-category-api/issues/124

GitHub

Support Unions usage · Issue #124 · aws-amplify/amplify-category-api

Is this feature request related to a new or existing Amplify category? api Is this related to another service? AppSync Describe the feature you'd like to request Appsync supports working with I...

hearty hound Mar 31, 2023, 6:15 PM

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Thanks to the reply! Will work around it for now - hopefully it will be supported later 😄

lyric boughBOT Apr 1, 2023, 10:23 PM

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✅ - Use of union in GraphQL

#✅ - Use of union in GraphQL