replaced logging with Winston

src/util/logger.ts

@@ -0,0 +1,16 @@
+import * as winston from "winston";
+import { ENVIRONMENT } from "./secrets";
+
+const logger = new (winston.Logger)({
+    transports: [
+        new (winston.transports.Console)({ level: process.env.NODE_ENV === "production" ? "error" : "debug" }),
+        new (winston.transports.File)({ filename: "debug.log", level: "debug"})
+    ]
+});
+
+if (process.env.NODE_ENV !== "production") {
+    logger.debug("Logging initialized at debug level");
+}
+
+export default logger;
+

src/util/secrets.ts

@@ -0,0 +1,26 @@
+import logger from "./logger";
+import * as dotenv from "dotenv";
+import * as  fs from "fs";
+
+if (fs.existsSync(".env")) {
+    logger.debug("Using .env file to supply config environment variables");
+    dotenv.config({ path: ".env" });
+} else {
+    logger.debug("Using .env.example file to supply config environment variables");
+    dotenv.config({ path: ".env.example" });  // you can delete this after you create your own .env file!
+}
+export const ENVIRONMENT = process.env.NODE_ENV;
+const prod = ENVIRONMENT === "production"; // Anything else is treated as 'dev'
+
+export const SESSION_SECRET = process.env["SESSION_SECRET"];
+export const MONGODB_URI = prod ? process.env["MONGODB_URI"] : process.env["MONGODB_URI_LOCAL"];
+
+if (!SESSION_SECRET) {
+    logger.error("No client secret. Set SESSION_SECRET environment variable.");
+    process.exit(1);
+}
+
+if (!MONGODB_URI) {
+    logger.error("No mongo connection string. Set MONGODB_URI environment variable.");
+    process.exit(1);
+}