javascript - GraphQL Args error: argument type must be Input Type but got: function GraphQLObjectType(config) { -

on server start (node index.js) getting following error graphql nodejs server:

error: query.payment(data:) argument type must input type got: function graphqlobjecttype(config) { _classcallcheck(this, graphqlobjecttype);

this error happened when changed original args string

        args: {             data: { type: graphql.graphqlstring }         }, 

to object type:

        args: {             data: { type: graphql.graphqlobjecttype }         }, 

i need object type need send several fields params.

graphql server:

var query = new graphql.graphqlobjecttype({     name: 'query',     fields: {         payment: {             type: graphql.graphqlstring,             args: {                 data: { type: graphql.graphqlobjecttype }             },             resolve: function (_, args) {                 // there more data here,                  // want return string                 return 'success!';             }         }     } }); 

how can allow accept object?

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frontend (if needed. error happening before send this):

var userquery = encodeuricomponent('{ payment ( data: { user : "test" } )}');  $.get('http://localhost:4000/graphql?query=' + userquery, function (res) {        //stuff }); 

if want use object argument, should use graphqlinputobjecttype instead of graphqlobjecttype. , keep in mind graphql type based, you're not allowed use generic graphqlobjecttype arg type , dynamically query args. have explicitly define possible fields in input object (and choose of them mandatory , not)

try use approach:

// arg input object var inputtype = new graphqlinputobjecttype({     name: 'paymentinput',     fields: {         user: {             type: new graphqlnonnull(graphqlstring)         },         order: {             type: graphqlstring         },         ...another fields     } });  var query = new graphql.graphqlobjecttype({     name: 'query',     fields: {         payment: {             type: graphql.graphqlstring,             args: {                 data: { type: new graphqlnonnull(inputtype) }             },             resolve: function (_, args) {                 // there more data here,                 // want return string                 return 'success!';             }         }     } });