server/middleware/grpc-client/transform/cli-transform.js

// Copyright (c) 2021-2024 Uber Technologies Inc.
//
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

const Long = require('long');
const losslessJSON = require('lossless-json');

const cliTransform = item => {
  if (!item || typeof item !== 'object') {
    return item;
  }

  Object.entries(item).forEach(([subkey, subvalue]) => {
    if (subkey === 'input' && typeof subvalue !== 'string') {
      item[subkey] = Buffer.from(JSON.stringify(subvalue)).toString('base64');
    }

    if (subvalue && typeof subvalue.unsigned === 'boolean') {
      item[subkey] = new losslessJSON.LosslessNumber(
        Long.fromValue(subvalue).toString()
      );
    } else if (Buffer.isBuffer(subvalue)) {
      item[subkey] = subvalue.toString('base64');
    } else if (Array.isArray(subvalue)) {
      subvalue.forEach(cliTransform);
    } else if (subvalue && typeof subvalue === 'object') {
      cliTransform(subvalue);
    } else if (subvalue === null || subvalue === undefined) {
      delete item[subkey];
    }
  });

  return item;
};

module.exports = cliTransform;