Merge branch 'dev' into feature-email-verification

src/Controllers/event.controller.ts

@@ -19,13 +19,13 @@ export const getAllEvents = async (req: Request, res: Response) => {
       id: false,
     },
   });
-  if (events.length > 0)
-    res.status(200).json({
-      type: "success",
-      payload: {
-        events,
-      },
-    });
+
+  res.status(200).json({
+    type: "success",
+    payload: {
+      events,
+    },
+  });
 };
 
 export const getEvent = async (req: Request, res: Response) => {

src/Middleware/debug/logger.ts

@@ -0,0 +1,11 @@
+import { NextFunction, Request, Response } from "express";
+import logger from "../error/logger";
+
+export default function debugLogger(req: Request, res: Response, next: NextFunction) {
+  // Only log when in development mode
+  if (process.env.NODE_ENV === "development") {
+    logger.debug(`Request to: ${req.url}`);
+  }
+  
+  next();
+}

src/Middleware/error/ForwardableError.ts

@@ -0,0 +1,16 @@
+export default class ForwardableError extends Error {
+  // If in different context
+  private readonly __id = "CUSTOM_ERROR";
+
+  public readonly status: number;
+
+  constructor(status: number, message: string) {
+    super(message);
+
+    this.status = status;
+  }
+
+  static isForwardableError(error: any): error is ForwardableError {
+    return error.__id === "CUSTOM_ERROR";
+  }
+}

src/Middleware/error/handler.ts

@@ -0,0 +1,82 @@
+import { PrismaClientUnknownRequestError } from "@prisma/client/runtime";
+import { NextFunction, Request, Response } from "express";
+import ForwardableError from "./ForwardableError";
+import logger from "./logger";
+
+const env = process.env.NODE_ENV || "production";
+
+type ErrorHandler = (err: any, req: Request, res: Response) => boolean;
+
+const customHandlers: ErrorHandler[] = [];
+
+export function addCustomHandler(handler: ErrorHandler) {
+  customHandlers.push(handler);
+}
+
+export function removeCustomHandler(handler: ErrorHandler): Boolean {
+  const index = customHandlers.findIndex((h) => h === handler);
+
+  if (index < 0) {
+    return false;
+  }
+
+  customHandlers.splice(index);
+
+  return true;
+}
+
+export default function defaultErrorHandler(err: any, req: Request, res: Response, next: NextFunction) {
+  for (const handler of customHandlers) {
+    // Run custom handler
+    if (handler(err, req, res)) {
+      return;
+    }
+  }
+
+  if (ForwardableError.isForwardableError(err)) {
+    return res.status(err.status).json({
+      type: "error",
+      payload: {
+        message: err.message,
+        ...(env === "development"
+          ? {
+              stack: err.stack,
+            }
+          : {}),
+      },
+    });
+  }
+
+  if (err instanceof PrismaClientUnknownRequestError) {
+    logger.warning(err);
+
+    return res.status(404).json({
+      type: "error",
+      payload: {
+        message: "An unknown error occured. This could be due to malformed IDs",
+        ...(env === "development"
+          ? {
+              prisma: err.message,
+              stack: err.stack,
+            }
+          : {}),
+      },
+    });
+  }
+
+  logger.error("--- Unhandled error ---");
+  logger.error(err);
+
+  return res.status(err.status).json({
+    type: "error",
+    payload: {
+      message: err.message,
+      ...(env === "development"
+        ? {
+            notice: "This error was not caught by any handler, please add handling!",
+            stack: err.stack,
+          }
+        : {}),
+    },
+  });
+}

src/Middleware/error/logger.ts

@@ -0,0 +1,41 @@
+import winston, { createLogger } from "winston";
+
+const {
+  format: { printf, colorize, combine, timestamp, json, errors, prettyPrint },
+} = winston;
+
+const defaultJsonFormat = combine(errors({ stack: true }), timestamp(), json({ space: 2 }));
+
+const customCLIFormat = printf(({ level, message, label, timestamp, stack }) => {
+  let output = `${level}${stack ? `(1/2:message)` : ""} at ${timestamp}${label ? ` (#${label})` : ""}: ${message}${
+    stack ? "\n" : ""
+  }`;
+
+  if (stack) {
+    output += `\n${level}(2/2:stack)${label ? ` (#${label})` : ""}: ${stack}\n\n`;
+  }
+
+  return output;
+});
+
+export default createLogger({
+  levels: winston.config.syslog.levels,
+  format: combine(errors({ stack: true }), timestamp()),
+  transports: [
+    new winston.transports.Console({
+      level: "debug",
+      format: combine(timestamp(), colorize(), customCLIFormat),
+    }),
+    new winston.transports.File({
+      filename: "/app/error.log",
+      level: "error",
+      format: defaultJsonFormat,
+    }),
+    new winston.transports.File({
+      level: "debug",
+      filename: "/app/debug.log",
+      format: defaultJsonFormat,
+      silent: !(process.env.NODE_ENV === "development"), // Silent when not in development
+    }),
+  ],
+});

src/app.ts

@@ -11,11 +11,21 @@ import argon2 from "argon2";
 import adminRouter from "./Routes/admin.routes";
 import organisationRouter from "./Routes/organisation.routes";
 import groupRouter from "./Routes/group.routes";
+import defaultErrorHandler from "./Middleware/error/handler";
+import logger from "./Middleware/error/logger";
+import debugLogger from "./Middleware/debug/logger";
+
+// Set up async error handling
+require("express-async-errors");
 
 require("dotenv").config(); // Load dotenv config
 
 const app = express();
 
+if (process.env.NODE_ENV === "development") {
+  logger.info("Using development mode");
+}
+
 async function main() {
   // Dev
   await prisma.admin.upsert({
@@ -34,16 +44,7 @@ async function main() {
   app.use(express.urlencoded({ extended: true }));
   app.use(express.json());
 
-  app.use((err: any, req: Request, res: Response, next: NextFunction) => {
-    if (err) {
-      res.status(400).send({
-        type: "error",
-        payload: "The body of your request did not contain valid data",
-      });
-    } else {
-      next();
-    }
-  });
+  app.use(debugLogger);
 
   // Admin authentication endpoints
   app.use("/api/authentication", adminAuthRouter);
@@ -56,13 +57,24 @@ async function main() {
   app.use("/api/organisations", organisationRouter);
 
   app.use("/api/groups", groupRouter);
+
+  // Error handling
+  app.use(defaultErrorHandler);
+
   app.listen(process.env.PORT, () => {
-    console.log(`Listening on Port: ${process.env.PORT}`);
+    logger.info(`Listening on port ${process.env.PORT}`);
+  });
+
+  logger.info("Server started");
+
+  process.on("exit", () => {
+    logger.info("Server stopping...");
   });
 }
 
 main()
   .catch((e) => {
+    logger.crit(e);
     throw e;
   })
   .finally(async () => {