inital #2

src/config.ts

@@ -0,0 +1,44 @@
+import * as env from 'env-var';
+import {urlJoin} from '.';
+
+const NODE_ENV = env.get('NODE_ENV').default("development").asString();
+const isProduction = NODE_ENV === 'production';
+
+const envs = {
+	NODE_ENV,
+	// port of the server
+	PORT: env.get('PORT').default('3000').asPortNumber(),
+	// hostname of the server ('0.0.0.0' listens on all network interfaces)
+	HOSTNAME: env.get('HOSTNAME').default('0.0.0.0').asString(),
+	// base path
+	BASE_PATH: env.get('BASE_PATH').default('/').asString(),
+	// external base url
+	EXTERNAL_BASE_URL: env.get('EXTERNAL_BASE_URL').asString(),
+
+	// url of redis session store (required in production using InMemory)
+	REDIS_URL: env.get('REDIS_URL').asString() || undefined,
+	// cookie secret for the session id (required in production using Session)
+	SESSION_SECRET: env.get('SESSION_SECRET').asString() || undefined,
+
+	// header where user info token is stored to request auth proxy
+	USERINFO_HEADER: env.get('USERINFO_HEADER').asString() || undefined,
+	// base url to init a logout or request user info
+	AUTH_PROXY_URL: env.get('AUTH_PROXY_URL').asString() || undefined,
+	// override base url to request user info
+	AUTH_PROXY_USERINFO_URL: env.get('AUTH_PROXY_USERINFO_URL').asString() || undefined,
+	// override base url to init a logout
+	AUTH_PROXY_INIT_LOGOUT_URL: env.get('AUTH_PROXY_INIT_LOGOUT_URL').asString() || undefined,
+};
+
+function requireEnv(name: string, onlyInProduction = false): void {
+	env.get(name).required(!onlyInProduction || isProduction).asString();
+}
+
+export const DefaultConfig = {
+	...envs,
+		EXTERNAL_BASE_URL:
+			envs.EXTERNAL_BASE_URL ||
+			urlJoin(`http://${envs.HOSTNAME}${envs.PORT !== 80 ? `:${envs.PORT}` : ""}`, envs.BASE_PATH),
+	isProduction,
+	requireEnv,
+};