graphile-build/node8plus/plugins/MutationPlugin.js

Build a GraphQL schema from plugins

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
function isValidMutation(Mutation) {
  try {
    if (!Mutation) {
      return false;
    }
    if (Object.keys(Mutation.getFields()).length === 0) {
      return false;
    }
  } catch (e) {
    return false;
  }
  return true;
}
var MutationPlugin = async function MutationPlugin(builder) {
  builder.hook("GraphQLSchema", (schema, build) => {
    const {
      newWithHooks,
      extend,
      graphql: {
        GraphQLObjectType
      },
      inflection
    } = build;
    const Mutation = newWithHooks(GraphQLObjectType, {
      name: inflection.builtin("Mutation"),
      description: build.wrapDescription("The root mutation type which contains root level fields which mutate data.", "type")
    }, {
      __origin: `graphile-build built-in (root mutation type)`,
      isRootMutation: true
    }, true);
    if (isValidMutation(Mutation)) {
      return extend(schema, {
        mutation: Mutation
      }, "Adding mutation type to schema");
    } else {
      return schema;
    }
  }, ["Mutation"], [], ["Query"]);
};
exports.default = MutationPlugin;
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