declapract
Version:
A tool to declaratively define best practices, maintainable evolve them, and scalably enforce them.
58 lines • 2.39 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.serviceClientStage = exports.stage = exports.isOfStage = exports.Stage = void 0;
const error_fns_1 = require("@ehmpathy/error-fns");
const type_fns_1 = require("type-fns");
var Stage;
(function (Stage) {
Stage["PRODUCTION"] = "prod";
Stage["DEVELOPMENT"] = "dev";
Stage["TEST"] = "test";
})(Stage || (exports.Stage = Stage = {}));
exports.isOfStage = (0, type_fns_1.createIsOfEnum)(Stage);
/**
* verify that the server is on UTC timezone
*
* why?
* - non UTC timezone usage causes problems and takes a while to track down
* - by failing fast if the server our code runs in is not in UTC, we avoid these issues
* =>
* - create a pit of success
*/
const TIMEZONE = process.env.TZ;
if (TIMEZONE !== 'UTC')
throw new error_fns_1.UnexpectedCodePathError('env.TZ is not set to UTC. this can cause issues. please set the env var', { found: TIMEZONE, desire: 'UTC' });
/**
* this allows us to infer what the stage should be in environments that do not have STAGE specified
* - e.g., when running locally
* - e.g., when running tests
*/
const inferStageFromNodeEnv = () => {
const nodeEnv = process.env.NODE_ENV; // default to test if not defined
if (!nodeEnv)
throw new Error('process.env.NODE_ENV must be defined');
if (nodeEnv === 'production')
return Stage.PRODUCTION;
if (nodeEnv === 'development')
return Stage.DEVELOPMENT;
if (nodeEnv === 'test')
return Stage.TEST;
throw new Error(`unexpected nodeEnv '${nodeEnv}'`);
};
/**
* a method that exposes relevant environmental variables in a standard way
*/
const getEnvironment = () => {
var _a;
const stage = (_a = process.env.STAGE) !== null && _a !== void 0 ? _a : inferStageFromNodeEnv(); // figure it out from NODE_ENV if not explicitly defined
if (!stage)
throw new Error('process.env.STAGE must be defined');
if (!(0, exports.isOfStage)(stage))
throw new Error(`invalid stage defined '${stage}'`);
return { stage };
};
// export stage immediately, since it does not change
exports.stage = getEnvironment().stage;
// export service client stage
exports.serviceClientStage = exports.stage === Stage.PRODUCTION ? Stage.PRODUCTION : Stage.DEVELOPMENT; // i.e., if its prod, hit prod. otherwise, dev
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