Relay - dataID.startsWith is not a function

Question

I'm playing around graphQL and relay, I make backend in .NET using graphQL-dotnet

I have problem with client, I send my query using relay as I see in dev tools client receive all data and nothing happened, just receive warning in console:

dataID.startsWith is not a function

This issue occurse when I trying to get data in schema like:

ListOfItems{
  listProp{
    itemName
  }
}

where listProp is ListGraphType

When I trying to ask about diffrent data that is not a List It working fine.

Can someone help me with this?

Answer 1

id should be a string, not an int.

Specifically, the GraphQL server may represent the value of id as any scalar type, but it should serialize to/from a string. This is the case by default if you're using graphql-relay-js, so perhaps this is an issue with how you configured the schema.