diff --git a/package-lock.json b/package-lock.json
index c82d4b5..3689e96 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -159,6 +159,12 @@
       "integrity": "sha512-UoCovaxbJIxagCvVfalfK7YaNhmxj3BQFRQ2RHQKLiu+9wNXhJnlbspsLHt/YQM99IaLUUFJNzCwzc6W0ypMeQ==",
       "dev": true
     },
+    "@types/http-status": {
+      "version": "0.2.30",
+      "resolved": "https://registry.npmjs.org/@types/http-status/-/http-status-0.2.30.tgz",
+      "integrity": "sha512-wcBc5XEOMmhuoWfNhwnpw8+tVAsueUeARxCTcRQ0BCN5V/dyKQBJNWdxmvcZW5IJWoeU47UWQ+ACCg48KKnqyA==",
+      "dev": true
+    },
     "@types/js-yaml": {
       "version": "3.12.1",
       "resolved": "https://registry.npmjs.org/@types/js-yaml/-/js-yaml-3.12.1.tgz",
@@ -3664,6 +3670,11 @@
         "sshpk": "^1.7.0"
       }
     },
+    "http-status": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/http-status/-/http-status-1.3.2.tgz",
+      "integrity": "sha512-vR1YTaDyi2BukI0UiH01xy92oiZi4in7r0dmSPnrZg72Vu1SzyOLalwWP5NUk1rNiB2L+XVK2lcSVOqaertX8A=="
+    },
     "iconv-lite": {
       "version": "0.4.24",
       "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
diff --git a/package.json b/package.json
index 664e5a3..7dcee4a 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,7 @@
     "@types/express-socket.io-session": "^1.3.2",
     "@types/fs-extra": "^8.0.0",
     "@types/graphql": "^14.2.3",
+    "@types/http-status": "^0.2.30",
     "@types/js-yaml": "^3.12.1",
     "@types/node": "^12.7.2",
     "@types/pg": "^7.11.0",
@@ -54,6 +55,7 @@
     "g": "^2.0.1",
     "graphql": "^14.4.2",
     "graphql-import": "^0.7.1",
+    "http-status": "^1.3.2",
     "js-yaml": "^3.13.1",
     "pg": "^7.12.1",
     "pug": "^2.0.4",
diff --git a/src/app.ts b/src/app.ts
index 3a60de6..7ea9b9b 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -14,6 +14,8 @@ import dataaccess from "./lib/dataaccess";
 import globals from "./lib/globals";
 import routes from "./routes";
 
+const logger = globals.logger;
+
 const PgSession = connectPgSimple(session);
 
 class App {
@@ -40,7 +42,7 @@ class App {
                 secure: "auto",
             },
             resave: false,
-            saveUninitialized: true,    // TODO: Set to false and only save when accepted by user.
+            saveUninitialized: false,
             secret: globals.config.session.secret,
             store: new PgSession({
                 pool: dataaccess.pool,
@@ -60,14 +62,18 @@ class App {
         this.app.use(express.static(path.join(__dirname, "public")));
         this.app.use(cookieParser());
         this.app.use(appSession);
+        this.app.use((req, res, next) => {
+            logger.verbose(`${req.method} ${req.url}`);
+            next();
+        });
         this.app.use(routes.router);
-        this.app.use("/graphql",  graphqlHTTP(async (request, response) => {
+        this.app.use("/graphql",  graphqlHTTP((request, response) => {
             return {
                 // @ts-ignore all
                 context: {session: request.session},
                 graphiql: true,
-                rootValue: await routes.resolvers(request, response),
-                schema: buildSchema(importSchema("./public/graphql/schema.graphql")),
+                rootValue: routes.resolvers(request, response),
+                schema: buildSchema(importSchema(path.join(__dirname, "./public/graphql/schema.graphql"))),
             };
         }));
     }
@@ -77,11 +83,11 @@ class App {
      */
     public start() {
         if (globals.config.server.port) {
-            globals.logger.info(`Starting server...`);
+            logger.info(`Starting server...`);
             this.app.listen(globals.config.server.port);
-            globals.logger.info(`Server running on port ${globals.config.server.port}`);
+            logger.info(`Server running on port ${globals.config.server.port}`);
         } else {
-            globals.logger.error("No port specified in the config." +
+            logger.error("No port specified in the config." +
                 "Please configure a port in the config.yaml.");
         }
     }
diff --git a/src/lib/dataaccess/index.ts b/src/lib/dataaccess/index.ts
index 5696547..6a9c854 100644
--- a/src/lib/dataaccess/index.ts
+++ b/src/lib/dataaccess/index.ts
@@ -50,7 +50,7 @@ namespace dataaccess {
      * @param userHandle
      */
     export async function getUserByHandle(userHandle: string) {
-        const result = await this.queryHelper.first({
+        const result = await queryHelper.first({
             text: "SELECT * FROM users WHERE users.handle = $1",
             values: [userHandle],
         });
@@ -62,12 +62,16 @@ namespace dataaccess {
      * @param email
      * @param password
      */
-    export async function getUserByLogin(email: string, password: string) {
-        const result = await this.queryHelper.first({
+    export async function getUserByLogin(email: string, password: string): Promise<Profile> {
+        const result = await queryHelper.first({
             text: "SELECT * FROM users WHERE email = $1 AND password = $2",
             values: [email, password],
         });
-        return new Profile(result.id, result);
+        if (result) {
+            return new Profile(result.id, result);
+        } else {
+            return null;
+        }
     }
 
     /**
@@ -77,7 +81,7 @@ namespace dataaccess {
      * @param password
      */
     export async function registerUser(username: string, email: string, password: string) {
-        const result = await this.queryHelper.first({
+        const result = await queryHelper.first({
             text: "INSERT INTO users (name, handle, password, email) VALUES ($1, $2, $3, $4) RETURNING *",
             values: [username, generateHandle(username), password, email],
         });
diff --git a/src/lib/globals.ts b/src/lib/globals.ts
index a85ffea..3457fa5 100644
--- a/src/lib/globals.ts
+++ b/src/lib/globals.ts
@@ -15,6 +15,10 @@ const defaultConfig = __dirname + "/../default-config.yaml";
 // ensure that the config exists by copying the default config.
 if (!(fsx.pathExistsSync(configPath))) {
     fsx.copySync(defaultConfig, configPath);
+} else {
+    const conf = yaml.safeLoad(fsx.readFileSync(configPath, "utf-8"));
+    const defConf = yaml.safeLoad(fsx.readFileSync(defaultConfig, "utf-8"));
+    fsx.writeFileSync(configPath, yaml.safeDump(Object.assign(defConf, conf)));
 }
 
 /**
@@ -28,10 +32,11 @@ namespace globals {
                 format: winston.format.combine(
                     winston.format.timestamp(),
                     winston.format.colorize(),
-                    winston.format.printf(({ level, message, label, timestamp }) => {
+                    winston.format.printf(({ level, message, timestamp }) => {
                         return `${timestamp} ${level}: ${message}`;
                     }),
                 ),
+                level: "debug",
             }),
         ],
     });
diff --git a/src/public/graphql/schema.graphql b/src/public/graphql/schema.graphql
index c5b03c3..ea9c4eb 100644
--- a/src/public/graphql/schema.graphql
+++ b/src/public/graphql/schema.graphql
@@ -22,6 +22,12 @@ type Mutation {
     "Accepts the usage of cookies."
     acceptCookies: Boolean
 
+    "Login of the user. The passwordHash should be a sha512 hash of the password."
+    login(email: String, passwordHash: String): User
+
+    "Logout of the user."
+    logout: Boolean
+
     "Upvote/downvote a Post"
     vote(postId: ID!, type: [VoteType!]!): Boolean
 
diff --git a/src/routes/home.ts b/src/routes/home.ts
index 13bb254..2af5947 100644
--- a/src/routes/home.ts
+++ b/src/routes/home.ts
@@ -1,5 +1,9 @@
 import {Router} from "express";
+import {GraphQLError} from "graphql";
+import * as status from "http-status";
+import {constants} from "http2";
 import {Server} from "socket.io";
+import dataaccess from "../lib/dataaccess";
 import Route from "../lib/Route";
 
 /**
@@ -36,9 +40,36 @@ class HomeRoute extends Route {
      * @param req - the request object
      * @param res - the response object
      */
-    public async resolver(req: any, res: any): Promise<object> {
+    public resolver(req: any, res: any): any {
         return {
-            // TODO: Define grapql resolvers
+            acceptCookies() {
+                req.session.cookiesAccepted = true;
+                return true;
+            },
+            async login(args: any) {
+                if (args.email && args.passwordHash) {
+                    const user = await dataaccess.getUserByLogin(args.email, args.passwordHash);
+                    if (user && user.id) {
+                        req.session.userId = user.id;
+                        return user;
+                    } else {
+                        res.status(status.BAD_REQUEST);
+                        return new GraphQLError("Invalid login data.");
+                    }
+                } else {
+                    res.status(status.BAD_REQUEST);
+                    return new GraphQLError("No email or password given.");
+                }
+            },
+            logout() {
+                if (req.session.user) {
+                    delete req.session.user;
+                    return true;
+                } else {
+                    res.status(status.UNAUTHORIZED);
+                    return new GraphQLError("User is not logged in.");
+                }
+            },
         };
     }
 
diff --git a/src/routes/index.ts b/src/routes/index.ts
index e512ee6..eb65750 100644
--- a/src/routes/index.ts
+++ b/src/routes/index.ts
@@ -28,7 +28,7 @@ namespace routes {
      * @param request
      * @param response
      */
-    export async function resolvers(request: any, response: any): Promise<object> {
+    export function resolvers(request: any, response: any): Promise<object> {
         return homeRoute.resolver(request, response);
     }