graphql error Sub selection required for type object of field Query

Question

I am getting following error while invoking GraphQL Query in java application -

"description": "Sub selection required for type Account of field accountQuery", "validationErrorType": "SubSelectionRequired", "queryPath": [ "accountQuery" ],

Here is my schema -

schema { query: Query }

type Query { accountQuery(nbr: String): Account }

type Account {
nbr: String
name: String ...
}

I have Account POJO defined and i am calling a Service in the backend based on the nbr value passed which is working fine.
Here is the rest request i am sending -

{ accountQuery(nbr: "123") }

Is the error due to missing id field and if so how do i mark "nbr" field as id ?

Nir Levy · Accepted Answer · 2019-08-25 21:32:24Z

8

In GraphQL, you always need to provide the fields you'd like to get in return from the query.

For example, if you'd like to get from the Account object the name and nbr fields, you need to specify it like that:

{ accountQuery(nbr: "123") {name, nbr}}

This is a key concept in GraphQL, whenever you query, you need to provide a selection set, that is- A set of fields requested in the query, you can never just return a full object, need to specify exactly which fields you'd like

edited Aug 25, 2019 at 21:32

answered Aug 25, 2019 at 21:25

Nir Levy

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1 Comment

chappalprasad Over a year ago

This was the problem, Thanks.

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