pubnub/src/core/endpoints/file_upload/get_file_url.js

Publish & Subscribe Real-time Messaging with PubNub

/** @flow */

import { PubNubError, createValidationError, signRequest, generatePNSDK } from '../../components/endpoint';
import type { Modules } from '../endpoint';
import type { GetFileUrlParams, GetFileUrlResult } from './types';
import utils from '../../utils';

export default (modules: Modules, { channel, id, name }: GetFileUrlParams): GetFileUrlResult => {
  const { config } = modules;

  if (!channel) {
    throw new PubNubError(
      'Validation failed, check status for details',
      createValidationError("channel can't be empty")
    );
  }

  if (!id) {
    throw new PubNubError(
      'Validation failed, check status for details',
      createValidationError("file id can't be empty")
    );
  }

  if (!name) {
    throw new PubNubError(
      'Validation failed, check status for details',
      createValidationError("file name can't be empty")
    );
  }

  const url = `/v1/files/${config.subscribeKey}/channels/${utils.encodeString(channel)}/files/${id}/${name}`;
  const params = {};

  params.uuid = config.getUUID();
  params.pnsdk = generatePNSDK(config);

  if (config.getAuthKey()) {
    params.auth = config.getAuthKey();
  }

  if (config.secretKey) {
    signRequest(modules, url, params, {}, {
      getOperation: () => 'PubNubGetFileUrlOperation',
    });
  }

  const queryParams = Object.keys(params).map((key) => `${encodeURIComponent(key)}=${encodeURIComponent(params[key])}`).join('&');

  if (queryParams !== '') {
    return `https://${config.origin}${url}?${queryParams}`;
  }

  return `https://${config.origin}${url}`;
};