SecurityDataStorage.ts

import fs from "fs-extra";
import { ISecurityDataStorage, Tokens } from "../src";
import { SecurityDataFilter } from "../src/types/SecurityDataFilter";

/**
 * A SecurityData model. This can be a record in a database or a file.
 */
export type SecurityDataItem = Tokens & {
  etsyUserId: number;
};

/**
 * This is an example of how to implement ISecurityDataStorage interface.
 * You can use this class to store security data in a file or in a database.
 */
export class SecurityDataStorage implements ISecurityDataStorage {
  filepath = "./examples/security-data.json";

  async storeAccessToken(filter: SecurityDataFilter, accessToken: Tokens) {
    const all = (await fs.readJson(this.filepath)) as SecurityDataItem[];
    const etsyUserId = parseInt(accessToken.accessToken.split(".")[0]);

    const index = all.findIndex((item) => item.etsyUserId === etsyUserId);

    if (index === -1) {
      all.push({
        etsyUserId,
        ...accessToken,
      });
    } else {
      all[index] = {
        etsyUserId,
        ...accessToken,
      };
    }

    await fs.writeJSON(this.filepath, all, { spaces: 2 });
  }

  async findAccessToken(
    filter: SecurityDataFilter
  ): Promise<Tokens | undefined> {
    if (!fs.existsSync(this.filepath)) return undefined;

    const all =
      ((await fs.readJson(this.filepath)) as SecurityDataItem[]) || [];

    return all.find((item) => item.etsyUserId === filter.etsyUserId);
  }
}