devdigest // dot net
Еще один, очень подробный пример работы с GraphQL в .NET Core

https://dev.to/dotnet/how-you-can-build-a-web-api-using-graphql-net-core-and-entity-framework-1ago
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How YOU can build a Web API using GraphQL .Net Core and Entity Framework
This shows how to build a Web Api with GraphQL and Entity Framework for storage
teleg.eu/s/dncuug/1175
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