From 16116425afdff8aa9c4527720667246184572c11 Mon Sep 17 00:00:00 2001 From: Emma Mansell <73774046+7emansell@users.noreply.github.com> Date: Wed, 4 Feb 2026 10:13:35 -0500 Subject: [PATCH 1/5] Adding load config from object for testing in Vercel --- src/config.ts | 67 +++++++++++++++++++++++++------ test/config-loader.test.ts | 81 ++++++++++++++++++++++++++++++++++++-- 2 files changed, 132 insertions(+), 16 deletions(-) diff --git a/src/config.ts b/src/config.ts index 2d3ec9c..d690e82 100644 --- a/src/config.ts +++ b/src/config.ts @@ -4,7 +4,7 @@ import { readFileSync } from 'fs' import { decrypt } from './kms' -class LoadConfigError extends Error {} +class LoadConfigError extends Error { } interface FlatHash { [key: string]: string @@ -40,7 +40,7 @@ class Config { fileReader: FileReader kmsDecrypter: KmsDecrypter - constructor (dependencies: ConfigDependencies) { + constructor(dependencies: ConfigDependencies) { this.fileReader = dependencies.fileReader this.kmsDecrypter = dependencies.kmsDecrypter } @@ -50,7 +50,7 @@ class Config { * * @return {FlatHash} * **/ - _readAndParseConfig (envName: string): ReadConfig { + _readAndParseConfig(envName: string): ReadConfig { if (!envName) { throw new LoadConfigError('Error loading config: No envName given') } @@ -71,24 +71,67 @@ class Config { } const config: FlatHash = {} - ;['PLAINTEXT_VARIABLES', 'ENCRYPTED_VARIABLES'].forEach((key) => { - if (parsed[key]) { - assert(typeof parsed[key] === 'object', `${key} must define an object`) + ;['PLAINTEXT_VARIABLES', 'ENCRYPTED_VARIABLES'].forEach((key) => { + if (parsed[key]) { + assert(typeof parsed[key] === 'object', `${key} must define an object`) - const name = key.split('_')[0].toLowerCase() - config[name] = parsed[key] - } - }) + const name = key.split('_')[0].toLowerCase() + config[name] = parsed[key] + } + }) return config } + /** + * Load config from an object instead of reading YAML. + * + * @param configObj - same structure as YAML: + * { + * PLAINTEXT_VARIABLES: { ... }, + * ENCRYPTED_VARIABLES: { ... } + * } + * @return {Promise} An object with all decrypted config + */ + async loadConfigFromObject(configObj?: { + PLAINTEXT_VARIABLES?: FlatHash + ENCRYPTED_VARIABLES?: FlatHash + }): Promise { + if (!configObj) { + throw new Error('loadConfigFromObject requires a config object') + } + + const plaintext = configObj.PLAINTEXT_VARIABLES + const encrypted = configObj.ENCRYPTED_VARIABLES + + if (plaintext && typeof plaintext !== 'object') { + throw new Error('PLAINTEXT_VARIABLES must define an object') + } + + if (encrypted && typeof encrypted !== 'object') { + throw new Error('ENCRYPTED_VARIABLES must define an object') + } + + let finalConfig: FlatHash + if (encrypted) { + finalConfig = { ...(plaintext || {}), ...(await this.kmsDecrypter(encrypted)) } + } else { + finalConfig = { ...(plaintext || {}) } + } + + this._config = finalConfig + this._configPromise = Promise.resolve(finalConfig) + + return finalConfig + } + + /** * Load named config, decrypting as necessary * * @return {Promise} An object with all decrypted config * **/ - loadConfig (envName = process.env.ENVIRONMENT): Promise { + loadConfig(envName = process.env.ENVIRONMENT): Promise { if (!envName) { throw new LoadConfigError('loadConfig requires an environment name (or ENVIRONMENT=...)') } @@ -124,7 +167,7 @@ class Config { * @return {object} config * @throw {LoadConfigError} if config not fully loaded yet. * **/ - getConfig () { + getConfig() { if (!this._config) { throw new LoadConfigError('Attempted to read config before initialized') } diff --git a/test/config-loader.test.ts b/test/config-loader.test.ts index 38b8ab8..0866102 100644 --- a/test/config-loader.test.ts +++ b/test/config-loader.test.ts @@ -6,10 +6,6 @@ import { test, mock } from 'node:test' - -import * as fs from 'fs' - -import * as kms from '../src/kms' import { factory } from '../src/config' import { setEnv } from './test-helper' @@ -121,4 +117,81 @@ suite('config', async () => { assert.deepStrictEqual(c, { k1: 'v1', k2: 'v2 decrypted' }) }) }) + + suite('loadConfigFromObject', () => { + let config = factory() + + beforeEach(() => { + config = factory() + }) + + test('loads plaintext vars only', async () => { + const obj = { + PLAINTEXT_VARIABLES: { + a: '1', + b: '2' + } + } + + const result = await config.loadConfigFromObject(obj) + + assert.deepStrictEqual(result, { a: '1', b: '2' }) + assert.deepStrictEqual(config.getConfig(), { a: '1', b: '2' }) + }) + + test('loads encrypted vars only', async () => { + config = factory({ + kmsDecrypter: () => + Promise.resolve({ secret: 'foo decrypted' }) + }) + + const obj = { + ENCRYPTED_VARIABLES: { + secret: 'foo' + } + } + + const result = await config.loadConfigFromObject(obj) + + assert.deepStrictEqual(result, { secret: 'foo decrypted' }) + assert.deepStrictEqual(config.getConfig(), { secret: 'foo decrypted' }) + }) + + test('loads mix of plaintext and encrypted vars', async () => { + config = factory({ + kmsDecrypter: () => + Promise.resolve({ e: 'foo decrypted' }) + }) + + const obj = { + PLAINTEXT_VARIABLES: { + p: 'plain' + }, + ENCRYPTED_VARIABLES: { + e: 'foo' + } + } + + const result = await config.loadConfigFromObject(obj) + + assert.deepStrictEqual(result, { + p: 'plain', + e: 'foo decrypted' + }) + + assert.deepStrictEqual(config.getConfig(), { + p: 'plain', + e: 'foo decrypted' + }) + }) + + test('works with empty object', async () => { + const obj = {} + + const result = await config.loadConfigFromObject(obj) + + assert.deepStrictEqual(result, {}) + assert.deepStrictEqual(config.getConfig(), {}) + }) + }) }) From 4c1eadc0f091daf037b9cd9a1bb723a4ee96ca6f Mon Sep 17 00:00:00 2001 From: Emma Mansell <73774046+7emansell@users.noreply.github.com> Date: Wed, 4 Feb 2026 10:21:18 -0500 Subject: [PATCH 2/5] More adjustment --- package.json | 2 +- test/config-loader.test.ts | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/package.json b/package.json index 26f8d17..42279ff 100644 --- a/package.json +++ b/package.json @@ -12,7 +12,7 @@ "scripts": { "build": "rollup -c && npm run build:types", "build:types": "tsc -p tsconfig.declarations.json", - "test": "node --experimental-test-module-mocks --import tsx --test test/**.test.ts" + "test": "node --import tsx --test test/**.test.ts" }, "keywords": [], "author": "@nonword", diff --git a/test/config-loader.test.ts b/test/config-loader.test.ts index 0866102..c0a87a0 100644 --- a/test/config-loader.test.ts +++ b/test/config-loader.test.ts @@ -157,7 +157,7 @@ suite('config', async () => { assert.deepStrictEqual(config.getConfig(), { secret: 'foo decrypted' }) }) - test('loads mix of plaintext and encrypted vars', async () => { + test('loads mix of plaintext, encrypted vars', async () => { config = factory({ kmsDecrypter: () => Promise.resolve({ e: 'foo decrypted' }) From b0e96aceeecba1a8aea0ba8276d45413c6772f2f Mon Sep 17 00:00:00 2001 From: Emma Mansell <73774046+7emansell@users.noreply.github.com> Date: Wed, 4 Feb 2026 16:09:13 -0500 Subject: [PATCH 3/5] changelog etc --- CHANGELOG.md | 4 + package-lock.json | 726 +--------------------------------------------- package.json | 2 +- 3 files changed, 7 insertions(+), 725 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index aefe472..a82088a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,9 @@ # Changelog +## [1.0.1] 2026-02-05 + + - Add support for `config.loadConfigFromObject` + ## [1.0.0] 2025-12-15 - Initial release, with support for `config.loadConfig`, `config.getConfig`, `logger.initialize`, `logger.setLevel`, and `logger.(error|warn|info|debug)` diff --git a/package-lock.json b/package-lock.json index b9b9036..0e36308 100644 --- a/package-lock.json +++ b/package-lock.json @@ -1,21 +1,18 @@ { "name": "@nypl/node-utils", - "version": "1.0.0", + "version": "1.0.1", "lockfileVersion": 3, "requires": true, "packages": { "": { "name": "@nypl/node-utils", - "version": "1.0.0", + "version": "1.0.1", "license": "ISC", "dependencies": { "@aws-sdk/client-kms": "^3.926.0", "winston": "^3.18.3", "yaml": "^2.8.1" }, - "bin": { - "nypl-load-config": "bin/load-config.js" - }, "devDependencies": { "@rollup/plugin-typescript": "^12.1.2", "@types/node": "^22.14.1", @@ -677,74 +674,6 @@ "kuler": "^2.0.0" } }, - "node_modules/@esbuild/aix-ppc64": { - "version": "0.25.12", - "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.25.12.tgz", - 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"version": "1.0.0", + "version": "1.0.1", "description": "A collection of common utilities for NYPL Node apps", "repository": { "type": "git", From 6c4c587dc56a05257623148cedd21e094f28ba51 Mon Sep 17 00:00:00 2001 From: Emma Mansell <73774046+7emansell@users.noreply.github.com> Date: Thu, 5 Feb 2026 09:46:16 -0500 Subject: [PATCH 4/5] changelog --- CHANGELOG.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index a82088a..5c14a65 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,7 +2,7 @@ ## [1.0.1] 2026-02-05 - - Add support for `config.loadConfigFromObject` + - Add `config.loadConfigFromObject` ## [1.0.0] 2025-12-15 From 4e68fabd2da512e9f77235245d8a8fa9e2afcfd2 Mon Sep 17 00:00:00 2001 From: Emma Mansell <73774046+7emansell@users.noreply.github.com> Date: Thu, 5 Feb 2026 13:42:53 -0500 Subject: [PATCH 5/5] Take 2 More promise more chain --- src/config.ts | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/src/config.ts b/src/config.ts index d690e82..4c54395 100644 --- a/src/config.ts +++ b/src/config.ts @@ -93,15 +93,19 @@ class Config { * } * @return {Promise} An object with all decrypted config */ - async loadConfigFromObject(configObj?: { + loadConfigFromObject(configObj?: { PLAINTEXT_VARIABLES?: FlatHash ENCRYPTED_VARIABLES?: FlatHash }): Promise { + if (this._configPromise) { + return this._configPromise + } + if (!configObj) { - throw new Error('loadConfigFromObject requires a config object') + throw new Error("requires config object") } - const plaintext = configObj.PLAINTEXT_VARIABLES + const plaintext = configObj.PLAINTEXT_VARIABLES || {} const encrypted = configObj.ENCRYPTED_VARIABLES if (plaintext && typeof plaintext !== 'object') { @@ -112,20 +116,23 @@ class Config { throw new Error('ENCRYPTED_VARIABLES must define an object') } - let finalConfig: FlatHash if (encrypted) { - finalConfig = { ...(plaintext || {}), ...(await this.kmsDecrypter(encrypted)) } + this._configPromise = this.kmsDecrypter(encrypted) + .then((decrypted) => ({ ...plaintext, ...decrypted })) } else { - finalConfig = { ...(plaintext || {}) } + this._configPromise = Promise.resolve(plaintext) } - this._config = finalConfig - this._configPromise = Promise.resolve(finalConfig) + this._configPromise = (this._configPromise as Promise).then((c) => { + this._config = c + return c + }) - return finalConfig + return this._configPromise } + /** * Load named config, decrypting as necessary *