Failed to get list in reaction relay

Question

I follow the pattern below here

I want to get all users, so I updated my schema as follows

var Root = new GraphQLObjectType({
  name: 'Root',
  fields: () => ({
    user: {
      type: userType,
      resolve: (rootValue, _) => {
        return getUser(rootValue)
      }
    },
    post: {
      type: postType,
      args: {
         ...connectionArgs,
          postID: {type: GraphQLString}
        },
      resolve: (rootValue, args) => {
       return getPost(args.postID).then(function(data){
        return data[0];
       }).then(null,function(err){
        return err;
       });
      }
    },

    users:{
      type: new GraphQLList(userType),
      resolve: (root) =>getUsers(),
    },
  })
});

And in database.js

export function getUsers(params) {
  console.log("getUsers",params)
  return new Promise((resolve, reject) => {
      User.find({}).exec({}, function(err, users) {
        if (err) {
          resolve({})
        } else {
          resolve(users)
        }
      });
  })
}

I get results in / graphql as

{
  users {
    id,
    fullName
  } 
}

and the results are like

{
  "data": {
    "users": [
      {
        "id": "VXNlcjo1Nzk4NWQxNmIwYWYxYWY2MTc3MGJlNTA=",
        "fullName": "Akshay"
      },
      {
        "id": "VXNlcjo1Nzk4YTRkNTBjMWJlZTg1MzFmN2IzMzI=",
        "fullName": "jitendra"
      },
      {
        "id": "VXNlcjo1NzliNjcyMmRlNjRlZTI2MTFkMWEyMTk=",
        "fullName": "akshay1"
      },
      {
        "id": "VXNlcjo1NzliNjgwMDc4YTYwMTZjMTM0ZmMxZWM=",
        "fullName": "Akshay2"
      },
      {
        "id": "VXNlcjo1NzlmMTNkYjMzNTNkODQ0MmJjOWQzZDU=",
        "fullName": "test"
      }
    ]
  }
}

but if I try to get this as

export default Relay.createContainer(UserList, {
  fragments: {
    userslist: () => Relay.QL`
      fragment on User @relay(plural: true) {
            fullName,
            local{
              email
            },
            images{
              full
            },
            currentPostCount,
            isPremium,
      }
    `,
  },
});

I get an error Minified exception occurred; use the non-minified dev environment for the full error message and additional helpful warnings.

Please tell me what I am missing. I tried a lot with and without @relay (plural: true). Also tried updating the schema with arguments like

    users:{
      type: new GraphQLList(userType),
      args: {
        names: {
          type: GraphQLString,
        },
        ...connectionArgs,
      },
      resolve: (root, {names}) =>connectionFromArray(getUsers(names)),
    },

but I got an error Cannot read property 'after' of undefined in implementing react-relay Thanks in Advance.

Answer 1

Currently, the relay supports only three types of root fields (see facebook / relay # 112 ):

• , node:
  • . { user { id } } {"id": "123"}
• , node:
  • . { post(id: "456") { id } } {"id": "456"}
• , , ( " " ):
  • . { users(ids: ["123", "321"]) { id } } [{"id": "123"}, {"id": "321"}]

( viewer), node, . viewer ( node) , . GraphQL, :

{
  viewer {
    users {
      id,
      fullName,
    }
  }
}

viewer - node, , id . globalIdField id , :

const viewerType = new GraphQLObjectType({
  name: 'Viewer',
  interfaces: [nodeInterface],
  fields: {
    id: globalIdField('Viewer', () => 'VIEWER_ID'),
    users:{
      type: new GraphQLList(userType),
      resolve: (viewer) => getUsers(),
    },
  },
});

{ viewer } viewer:

export default Relay.createContainer(UserList, {
  fragments: {
    viewer: () => Relay.QL`
      fragment on Viewer {
        users {
          fullName,
          local {
            email,
          },
          images {
            full,
          },
          currentPostCount,
          isPremium,
        }
      }
    `,
  },
});