Cannot query field "_service" on type "Query"

Users GraphQL
3

Hi @Tyler_D, You have not defined any entity in your graphql schema. This schema is equivalent to a blank schema to the gateway. According to our implementation if there is no entity in the schema then Apollo federation resolvers are excluded which is resulting in error. You need to define at least one entity in your schema to make use of federation. For example, if you change your type Review definition to this:-

type Review @key(fields: "id"){
    id: ID!
    about: Product!
    by: Customer!
    comment: String @search(by: [fulltext])
    rating: Int @search
}

then there should be no issue. Feel free to ask further questions.

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