Passing array as argument in GraphQL

Question

I have started working on GraphQL.My schema contains one list item too.

Following is the code of my schema:

var userType = new graphql.GraphQLObjectType({  
 name: 'user',
 fields: function () {
  return {
    _id: {
    type: graphql.GraphQLID
  },
  name: {
    type: graphql.GraphQLString
  },
  age: {
    type: graphql.GraphQLString
  },
  degrees:[
  {type:graphql.GraphQLList}
  ]
}
  }
   });

AND the query is as follows:

  var QueryType = new graphql.GraphQLObjectType({  
  name: 'Query',
  fields: () => ({
    userArr: {
      type: new graphql.GraphQLList(userType),
      args:{
         degrees:{type:new graphql.GraphQLList(userType)}
      },
     resolve: function(source, args) {
        console.log(args);
        resolve(args);
      }
    }
})
})

I got this error.

Basically i need to post the array from client graphql query and have to define query accordingly which i am unable to achieve. Any suggestions because i can't find any help over this issue..

Answer 1

GraphQLObjectType is not a valid input type.

See Mutations and Input Types

"Input types can't have fields that are other objects, only basic scalar types, list types, and other input types."

You can use the suggestion above because GraphQLString is a scalar

degrees:{
    type:new graphql.GraphQLList(graphql.GraphQLString)
}

Otherwise, you would need to define a GraphQLInputObjectType

const userInputType = new GraphQLInputObjectType({
    name: 'userInput',
    fields: { /* put your fields here */ }
});
/* some code in between */

degrees:{
    type:new graphql.GraphQLList(userInputType)
}