@yoroi/common/lib/module/storage/helpers/storage-serializer.js

The Common package of Yoroi SDK

import BigNumber from 'bignumber.js';

/**
 * Serializes the given object into a JSON string, with support for BigInt and BigNumber values.
 * Since BigInt and BigNumber are not supported by JSON.stringify, it serialize them as strings.
 *
 * @param toStringify - The object to be serialized.
 * @returns A stringfied JSON object with BigInt and BigNumber values serialized as strings.
 */
export const storageSerializer = toStringify => {
  const replacer = (_, value) => {
    if (typeof value === 'bigint' || BigNumber.isBigNumber(value)) {
      return value.toString();
    }
    return value;
  };
  return JSON.stringify(toStringify, replacer);
};
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