graphql-compose-relay/lib/nodeInterface.js

Plugin for `graphql-compose` which wraps graphql types with Relay specific logic.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getNodeInterface = getNodeInterface;
exports.NodeInterface = void 0;

var _graphqlCompose = require("graphql-compose");

const NodeTC = _graphqlCompose.InterfaceTypeComposer.createTemp({
  name: 'Node',
  description: 'An object, that can be fetched by the globally unique ID among all types.',
  fields: {
    id: {
      type: 'ID!',
      description: 'The globally unique ID among all types.'
    }
  },
  resolveType: payload => {
    // `payload.__nodeType` was added to payload via nodeFieldConfig.resolve
    return payload.__nodeType ? payload.__nodeType : null;
  }
});

const NodeInterface = NodeTC.getType();
exports.NodeInterface = NodeInterface;

function getNodeInterface(sc) {
  if (sc.hasInstance('Node', _graphqlCompose.InterfaceTypeComposer)) {
    return sc.get('Node');
  }

  sc.set('Node', NodeTC);
  return NodeTC;
}