Added login route, updated readme

Server/controllers/authController.js

@@ -1,7 +1,7 @@
 const express = require("express");
 const UserModel = require("../models/user");
-const { registerValidation } = require("../validation/joi");
-const logger = require('../utils/logger')
+const { registerValidation, loginValidation } = require("../validation/joi");
+const logger = require("../utils/logger");
 
 /**
  * @function
@@ -23,28 +23,73 @@ const registerController = async (req, res) => {
   try {
     const isUser = await req.db.getUserByEmail(req, res);
     if (isUser) {
-      logger.warning("User already exists!", { "service": "auth", "userId": isUser._id });
+      logger.error("User already exists!", {
+        service: "auth",
+        userId: isUser._id,
+      });
       return res
         .status(400)
         .json({ success: false, msg: "User already exists!" });
     }
   } catch (error) {
-    logger.error(error.message, { "service": "auth" });
+    logger.error(error.message, { service: "auth" });
     return res.status(500).json({ success: false, msg: error.message });
   }
 
-
   try {
     // Create a new user
     const newUser = await req.db.insertUser(req, res);
     // TODO: Send an email to user
     // Will add this later
-    logger.info("New user created!", { "service": "auth", "userId": newUser._id });
-    return res.json({ success: true, msg: "User created}", data: newUser });
+    logger.info("New user created!", { service: "auth", userId: newUser._id });
+    return res
+      .status(200)
+      .json({ success: true, msg: "User created}", data: newUser });
   } catch (error) {
-    logger.error(error.message, { "service": "auth" });
+    logger.error(error.message, { service: "auth" });
     return res.status(500).json({ success: false, msg: error.message });
   }
 };
 
-module.exports = { registerController };
+// **************************
+// Handles logging in a user
+// Returns a user at the moment, but will likely return a JWT in the future
+// **************************
+const loginController = async (req, res) => {
+  try {
+    // Validate input
+    await loginValidation.validateAsync(req.body);
+
+    // Check if user exists
+    const user = await req.db.getUserByEmail(req, res);
+
+    // If user not found, throw an error
+    if (!user) {
+      throw new Error("User not found!");
+    }
+    // Compare password
+    const match = await user.comparePassword(req.body.password);
+    console.log(user);
+    if (!match) {
+      throw new Error("Password does not match!");
+    }
+
+    // Copy user to remove password.  More memory, but better than mutating user?
+    // We can move this to the DB layer if we want
+    // Probably not neccessary at all as we'll likely return a JWT instead of a user
+    const userWithoutPassword = { ...user._doc };
+    delete userWithoutPassword.password;
+
+    // Happy path, return user
+    // In the future we'll probably return a JWT instead of a user
+    return res
+      .status(200)
+      .json({ success: true, msg: "Found user", data: userWithoutPassword });
+  } catch (error) {
+    // Anything else should be an error
+    logger.error(error.message, { service: "auth" });
+    return res.status(500).json({ success: false, msg: error.message });
+  }
+};
+
+module.exports = { registerController, loginController };