wkr-util/cjs/app-auth.js

Utility library for wkr project.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _nodeFetch = _interopRequireDefault(require("node-fetch"));

var _urlJoin = _interopRequireDefault(require("url-join"));

var _jsonwebtoken = _interopRequireDefault(require("jsonwebtoken"));

var _f = require("@cullylarson/f");

var _p = require("@cullylarson/p");

var _ = require("./");

var _ResponseError = _interopRequireDefault(require("./errors/ResponseError"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const AppAuth = (authApiUrl, appId, appSecret) => {
  const twoMinutes = 120; // if there is less than 2 minutes left on the JWT, then it should be renewed

  const shouldRenew = tokenInfo => {
    return !tokenInfo || !tokenInfo.exp || tokenInfo.exp - (0, _.nowStamp)() <= twoMinutes;
  };

  const tokenInfoFromToken = token => {
    const decoded = _jsonwebtoken.default.decode(token);

    return {
      token,
      exp: (0, _f.get)(['header', 'exp'], undefined, decoded)
    };
  };

  const getTokenInfo = (0, _p.memoizePUntil)(shouldRenew, (0, _p.retry)(3, () => {
    const query = {
      id: appId,
      secret: appSecret
    };
    return (0, _nodeFetch.default)((0, _urlJoin.default)(authApiUrl, '/api/v1/application/authenticate'), {
      method: 'post',
      body: JSON.stringify(query),
      headers: {
        'Content-Type': 'application/json'
      }
    }).then(_.responseData).then(({
      response,
      data
    }) => {
      if (!response.ok) {
        throw new _ResponseError.default(response.status, data, `Failed to get token. Got status: ${response.status}`);
      }

      return data.token;
    }).then(tokenInfoFromToken);
  }));
  return {
    getToken: () => {
      return getTokenInfo().then(tokenInfo => tokenInfo.token);
    }
  };
};

var _default = AppAuth;
exports.default = _default;
module.exports = exports.default;