Add linting to project using Eslint

2 files changed, 17 insertions, 9 deletions

diff --git a/src/util/config.ts b/src/util/config.ts
index c155e64..6f8b60b 100644
--- a/src/util/config.ts
+++ b/src/util/config.ts
@@ -2,23 +2,23 @@ import winston from "winston";
 import { MongoClient } from "mongodb";
 import { Server } from "http";
 
-import logger_config from "./logger";
+import loggerConfig from "./logger";
 
-const logger = winston.createLogger(logger_config("ROOT"));
+const logger = winston.createLogger(loggerConfig("ROOT"));
 
-export const config_or_error = (var_name: string) => {
-  if (!process.env[var_name]) {
-    logger.error("%s must be defined", var_name);
+export const configOrError = (varName: string): string => {
+  if (!process.env[varName]) {
+    logger.error("%s must be defined", varName);
     process.exit(1);
     return "";
   } else {
-    return process.env[var_name] || "";
+    return process.env[varName] || "";
   }
 };
 
-export const handle_shutdown = (mongo: MongoClient, server: Server) => (
+export const handleShutdown = (mongo: MongoClient, server: Server) => (
   signal: NodeJS.Signals
-) => {
+): void => {
   logger.warn("%s signal received. Closing shop.", signal);
 
   mongo
diff --git a/src/util/logger.ts b/src/util/logger.ts
index bafb829..d108ae0 100644
--- a/src/util/logger.ts
+++ b/src/util/logger.ts
@@ -1,4 +1,6 @@
 import winston from "winston";
+import { Format } from "logform";
+import * as Transport from "winston-transport";
 const { combine, splat, timestamp, label, colorize, printf } = winston.format;
 const { Console } = winston.transports;
 
@@ -7,7 +9,13 @@ const LOG_LEVEL = process.env.LOG_LEVEL || "info";
 /**
  * Provides standard logging format and output for the server.
  */
-export default (clazz: string, level: string = LOG_LEVEL) => ({
+export default (
+  clazz: string,
+  level: string = LOG_LEVEL
+): {
+  format: Format;
+  transports: Transport[];
+} => ({
   format: combine(
     splat(),
     timestamp(),