Initial commit

src/config/configuration.ts

@@ -0,0 +1,57 @@
+import { registerAs } from '@nestjs/config';
+
+export const appConfig = registerAs('app', () => ({
+  env: process.env.NODE_ENV || 'development',
+  port: parseInt(process.env.PORT || '3000', 10),
+  isDevelopment: process.env.NODE_ENV === 'development',
+  isProduction: process.env.NODE_ENV === 'production',
+}));
+
+export const databaseConfig = registerAs('database', () => ({
+  url: process.env.DATABASE_URL,
+}));
+
+export const jwtConfig = registerAs('jwt', () => ({
+  secret: process.env.JWT_SECRET,
+  accessExpiration: process.env.JWT_ACCESS_EXPIRATION || '15m',
+  refreshExpiration: process.env.JWT_REFRESH_EXPIRATION || '7d',
+}));
+
+export const redisConfig = registerAs('redis', () => ({
+  host: process.env.REDIS_HOST || 'localhost',
+  port: parseInt(process.env.REDIS_PORT || '6379', 10),
+  password: process.env.REDIS_PASSWORD || undefined,
+}));
+
+export const i18nConfig = registerAs('i18n', () => ({
+  defaultLanguage: process.env.DEFAULT_LANGUAGE || 'en',
+  fallbackLanguage: process.env.FALLBACK_LANGUAGE || 'en',
+}));
+
+export const featuresConfig = registerAs('features', () => ({
+  mail: process.env.ENABLE_MAIL === 'true',
+  s3: process.env.ENABLE_S3 === 'true',
+  websocket: process.env.ENABLE_WEBSOCKET === 'true',
+  multiTenancy: process.env.ENABLE_MULTI_TENANCY === 'true',
+}));
+
+export const mailConfig = registerAs('mail', () => ({
+  host: process.env.MAIL_HOST,
+  port: parseInt(process.env.MAIL_PORT || '587', 10),
+  user: process.env.MAIL_USER,
+  password: process.env.MAIL_PASSWORD,
+  from: process.env.MAIL_FROM,
+}));
+
+export const s3Config = registerAs('s3', () => ({
+  endpoint: process.env.S3_ENDPOINT,
+  accessKey: process.env.S3_ACCESS_KEY,
+  secretKey: process.env.S3_SECRET_KEY,
+  bucket: process.env.S3_BUCKET,
+  region: process.env.S3_REGION || 'us-east-1',
+}));
+
+export const throttleConfig = registerAs('throttle', () => ({
+  ttl: parseInt(process.env.THROTTLE_TTL || '60000', 10),
+  limit: parseInt(process.env.THROTTLE_LIMIT || '100', 10),
+}));

src/config/env.validation.ts

@@ -0,0 +1,80 @@
+import { z } from 'zod';
+
+/**
+ * Helper to parse boolean from string
+ */
+const booleanString = z
+  .string()
+  .optional()
+  .default('false')
+  .transform((val) => val === 'true');
+
+/**
+ * Environment variables schema validation using Zod
+ */
+export const envSchema = z.object({
+  // Environment
+  NODE_ENV: z
+    .enum(['development', 'production', 'test'])
+    .default('development'),
+  PORT: z.coerce.number().default(3000),
+
+  // Database
+  DATABASE_URL: z.string().url(),
+
+  // JWT
+  JWT_SECRET: z.string().min(32),
+  JWT_ACCESS_EXPIRATION: z.string().default('24h'),
+  JWT_REFRESH_EXPIRATION: z.string().default('7d'),
+
+  // Redis
+  REDIS_HOST: z.string().default('localhost'),
+  REDIS_PORT: z.coerce.number().default(6379),
+  REDIS_PASSWORD: z.string().optional(),
+
+  // i18n
+  DEFAULT_LANGUAGE: z.string().default('en'),
+  FALLBACK_LANGUAGE: z.string().default('en'),
+
+  // Optional Features
+  ENABLE_MAIL: booleanString,
+  ENABLE_S3: booleanString,
+  ENABLE_WEBSOCKET: booleanString,
+  ENABLE_MULTI_TENANCY: booleanString,
+
+  // Mail (Optional)
+  MAIL_HOST: z.string().optional(),
+  MAIL_PORT: z.coerce.number().optional(),
+  MAIL_USER: z.string().optional(),
+  MAIL_PASSWORD: z.string().optional(),
+  MAIL_FROM: z.string().optional(),
+
+  // S3 (Optional)
+  S3_ENDPOINT: z.string().optional(),
+  S3_ACCESS_KEY: z.string().optional(),
+  S3_SECRET_KEY: z.string().optional(),
+  S3_BUCKET: z.string().optional(),
+  S3_REGION: z.string().optional(),
+
+  // Throttle
+  THROTTLE_TTL: z.coerce.number().default(60000),
+  THROTTLE_LIMIT: z.coerce.number().default(100),
+});
+
+export type EnvConfig = z.infer<typeof envSchema>;
+
+/**
+ * Validate environment variables
+ */
+export function validateEnv(config: Record<string, unknown>): EnvConfig {
+  const result = envSchema.safeParse(config);
+
+  if (!result.success) {
+    const errors = result.error.issues.map(
+      (err) => `${err.path.join('.')}: ${err.message}`,
+    );
+    throw new Error(`Environment validation failed:\n${errors.join('\n')}`);
+  }
+
+  return result.data;
+}