ReactFlightActionServer.js — react Source File

Source Code

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

import type {ReactFormState} from 'shared/ReactTypes';

import type {
  ServerManifest,
  ClientReference as ServerReference,
} from 'react-client/src/ReactFlightClientConfig';

import {
  resolveServerReference,
  preloadModule,
  requireModule,
} from 'react-client/src/ReactFlightClientConfig';

import {
  createResponse,
  close,
  getRoot,
  MAX_BOUND_ARGS,
} from './ReactFlightReplyServer';

type ServerReferenceId = any;

function bindArgs(fn: any, args: any) {
  if (args.length > MAX_BOUND_ARGS) {
    throw new Error(
      'Server Function has too many bound arguments. Received ' +
        args.length +
        ' but the limit is ' +
        MAX_BOUND_ARGS +
        '.',
    );
  }

  return fn.bind.apply(fn, [null].concat(args));
}

function loadServerReference<T>(
  bundlerConfig: ServerManifest,
  metaData: {
    id: ServerReferenceId,
    bound: null | Promise<Array<any>>,
  },
): Promise<T> {
  const id: ServerReferenceId = metaData.id;
  if (typeof id !== 'string') {
    return (null: any);
  }
  const serverReference: ServerReference<T> =
    resolveServerReference<$FlowFixMe>(bundlerConfig, id);
  // We expect most servers to not really need this because you'd just have all
  // the relevant modules already loaded but it allows for lazy loading of code
// ... (150 more lines)