Function appendObjectFields

packages/utils/src/fields.ts:11–49

(
  schema: GraphQLSchema,
  typeName: string,
  additionalFields: GraphQLFieldConfigMap<any, any>,
)

import { correctASTNodes, mapSchema } from './mapSchema.js';

export function appendObjectFields(
  schema: GraphQLSchema,
  typeName: string,
  additionalFields: GraphQLFieldConfigMap<any, any>,
): GraphQLSchema {
  if (schema.getType(typeName) == null) {
    return addTypes(schema, [
      new GraphQLObjectType({
        name: typeName,
        fields: additionalFields,
      }),
    ]);
  }

  return mapSchema(schema, {
    [MapperKind.OBJECT_TYPE]: type => {
      if (type.name === typeName) {
        const config = type.toConfig();
        const originalFieldConfigMap = config.fields;

        const newFieldConfigMap = {};

        for (const fieldName in originalFieldConfigMap) {
          newFieldConfigMap[fieldName] = originalFieldConfigMap[fieldName];
        }
        for (const fieldName in additionalFields) {
          newFieldConfigMap[fieldName] = additionalFields[fieldName];
        }

        return correctASTNodes(
          new GraphQLObjectType({
            ...config,
            fields: newFieldConfigMap,
          }),
        );
      }
    },
  });
}

export function removeObjectFields(
  schema: GraphQLSchema,