Cannot set property 'clientMutationId' of undefined

[ansarizafar]

I am getting following error. when trying to run a mutation via graphiql

mutation {
 createUser (input: {username: "Hamza Khan", clientMutationId: ""}) {
   user {
    id
  username
}
}

}

{
  "data": {
    "createUser": null
  },
  "errors": [
    {
      "message": "Cannot set property 'clientMutationId' of undefined",
      "locations": [
        {
          "line": 17,
          "column": 2
        }
      ]
    }
  ]
}

Here is the mutation definition

import {
  GraphQLString,
  GraphQLInt,
  GraphQLFloat,
  GraphQLList,
  GraphQLObjectType,
  GraphQLID,
  GraphQLNonNull
} from 'graphql';

import {
  connectionArgs,
  connectionDefinitions,
  connectionFromArray,
  fromGlobalId,
  globalIdField,
  mutationWithClientMutationId,
  nodeDefinitions,
} from 'graphql-relay';

import {User} from './usermodel';
import {UserType} from './usertype';

export const UserMutations = {};
UserMutations.createUser = mutationWithClientMutationId({
  name: 'CreateUser',
  inputFields: {
    username: {type: new GraphQLNonNull(GraphQLString)}
  },
  outputFields: {
    user: {
      type: UserType,
      resolve: (payload) => {
console.log(payload);
        return User.getUserById(payload.userId);
      }
    }
  },
  mutateAndGetPayload: (args) => {
      let newUser = new User({ username: args.username });
    newUser.save().then((user) => {
        return {userId: user.id};
    }).error((err) => {return null;});
    }
});

[josephsavona]

Thanks for your question!

We want to make sure to keep signal strong in the GitHub issue tracker – to make sure that it remains the best place to track issues that affect the development of Relay.

Questions like yours deserve a purpose-built Q&A forum. Would you like to post this question to Stack Overflow with the tag #relayjs? We'll be happy to answer there. Post a link to your Stack Overflow question here, to so that we don't lose track of it.

https://stackoverflow.com/questions/ask?tags=relayjs

[ansarizafar]

@josephsavona I have posted this question to Stack Overflow. Here is the link

https://stackoverflow.com/questions/33831911/cannot-set-property-clientmutationid-of-undefined

[josephsavona]

thanks for posting on SO, let's continue discussion there.