lemon-core
Version:
Lemon Serverless Micro-Service Platform
134 lines • 5.51 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.awsConfig = exports.asyncCredentials = exports.loadDataYml = exports.loadJsonSync = exports.onlyDefined = exports.isLambda = void 0;
/**
* `tools/tools.ts`
* - additional helper.
*
* ex:
* ```ts
* const environ = require('lemon-core/dist/environ').default;
* const $env = environ(process)
* ```
*
* @author Steve Jung <steve@lemoncloud.io>
* @date 2019-08-09 initial typescript version.
* @date 2018-05-23 initial version
* @date 2019-11-26 cleanup and optimized for `lemon-core#v2`
*
* @copyright (C) 2019 LemonCloud Co Ltd. - All Rights Reserved.
*/
const fs_1 = __importDefault(require("fs"));
const js_yaml_1 = __importDefault(require("js-yaml"));
const credential_providers_1 = require("@aws-sdk/credential-providers");
/**
* Check if the current environment is AWS Lambda
* @returns {boolean} - true if running in AWS Lambda environment
*/
const isLambda = () => {
var _a;
return !!((_a = process === null || process === void 0 ? void 0 : process.env) === null || _a === void 0 ? void 0 : _a.AWS_LAMBDA_FUNCTION_NAME);
};
exports.isLambda = isLambda;
/** returns only defined */
const onlyDefined = (N, $def = null) => N && typeof N === 'object'
? Object.entries(N).reduce((N, [k, v]) => {
if (v !== undefined)
N[k] = v;
return N;
}, {})
: $def;
exports.onlyDefined = onlyDefined;
/**
* load json in sync.
*/
const loadJsonSync = (name, def = {}) => {
name = !name.startsWith('./') ? `./${name}` : name;
try {
const rawdata = fs_1.default.readFileSync(name);
return JSON.parse(rawdata.toString());
}
catch (e) {
if (def && typeof def === 'object')
def.error = `${e.message || e}`;
return def;
}
};
exports.loadJsonSync = loadJsonSync;
/**
* load yml data via './data/<file>.yml'
*/
const loadDataYml = (file, folder) => {
folder = folder || 'data';
const path = `./${folder}/` + file + (file.endsWith('.yml') ? '' : '.yml');
if (!fs_1.default.existsSync(path))
throw new Error('404 NOT FOUND - data-file:' + path);
return js_yaml_1.default.load(fs_1.default.readFileSync(path, 'utf8'));
};
exports.loadDataYml = loadDataYml;
/**
* dynamic loading credentials by profile. (search PROFILE -> NAME)
*
* @returns {Promise<CrendentialForAWS>} - AWS credentials
*/
const asyncCredentials = (profile) => __awaiter(void 0, void 0, void 0, function* () {
const provider = (0, credential_providers_1.fromIni)({ profile });
const $res = yield provider();
return Object.assign(Object.assign({}, $res), { profile });
});
exports.asyncCredentials = asyncCredentials;
/**
* load config for aws sdk
* - if `profile` is not defined, use `AWS_PROFILE` or `default`
* - if `region` is not defined, use `AWS_REGION` or `ap-northeast-2`
*
* ```
* # run with default profile
* $ npm run test:watch
*
* # run with `lemon` profile
* #npm run test:watch.lemon
*/
const awsConfig = ($engine,
/** params or region */
params) => {
var _a;
const errScope = `awsConfig(${(_a = $engine === null || $engine === void 0 ? void 0 : $engine.id) !== null && _a !== void 0 ? _a : ''})`;
const region = params === undefined
? 'ap-northeast-2'
: typeof params === 'string'
? params
: typeof params === 'function'
? params()
: params === null || params === void 0 ? void 0 : params.region;
const _conf = typeof params === 'object' ? params : null;
// If running in Lambda environment, set profile to 'none'
const profile = (0, exports.isLambda)() ? 'none' : $engine === null || $engine === void 0 ? void 0 : $engine.environ('NAME', 'none');
if (typeof profile !== 'string')
throw new Error(`@env.NAME[${typeof profile}] is invalid (check $engine) - ${errScope}`);
//* build defualt config.
const $conf = (0, exports.onlyDefined)(Object.assign({ profile: profile && profile !== 'none' ? profile : undefined, region }, _conf));
if (typeof $conf.region === 'string' && !$conf.region)
throw new Error(`.region[${$conf.region}] is invalid (empty) - ${errScope}`);
//! load the credentials provider(async function).
const credentials = typeof $conf.credentials === 'function'
? $conf.credentials
: $conf.profile
? (0, credential_providers_1.fromIni)({ profile: $conf.profile })
: undefined;
return (0, exports.onlyDefined)(Object.assign(Object.assign({}, $conf), { credentials }));
};
exports.awsConfig = awsConfig;
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