graphile-build/node8plus/plugins/QueryPlugin.js

Build a GraphQL schema from plugins

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var QueryPlugin = async function QueryPlugin(builder) {
  builder.hook("build", build => build.extend(build, {
    $$isQuery: Symbol("isQuery")
  }, `Extending Build`), ["Query"]);
  builder.hook("GraphQLSchema", (schema, build) => {
    const {
      $$isQuery,
      newWithHooks,
      extend,
      graphql: {
        GraphQLObjectType,
        GraphQLNonNull
      },
      inflection
    } = build;
    const queryType = newWithHooks(GraphQLObjectType, {
      description: build.wrapDescription("The root query type which gives access points into the data universe.", "type"),
      name: inflection.builtin("Query"),
      isTypeOf: (value, _context, info) => info.parentType == null || value === $$isQuery,
      fields: ({
        Self
      }) => ({
        query: {
          description: build.wrapDescription("Exposes the root query type nested one level down. This is helpful for Relay 1 which can only query top level fields if they are in a particular form.", "field"),
          type: new GraphQLNonNull(Self),
          resolve() {
            return $$isQuery;
          }
        }
      })
    }, {
      __origin: `graphile-build built-in (root query type)`,
      isRootQuery: true
    }, true);
    if (queryType) {
      return extend(schema, {
        query: queryType
      }, `Adding 'query' type to Schema`);
    } else {
      return schema;
    }
  }, ["Query"]);
};
exports.default = QueryPlugin;
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