diff --git a/leaky-ships/lib/backend/components/createPlayerDB.ts b/leaky-ships/lib/backend/components/createPlayerDB.ts
index 739d4f6..cfdc38d 100644
--- a/leaky-ships/lib/backend/components/createPlayerDB.ts
+++ b/leaky-ships/lib/backend/components/createPlayerDB.ts
@@ -1,32 +1,10 @@
 import type { Player } from "@prisma/client"
-import bcrypt from "bcrypt"
 import prisma from "../../prisma"
 import logging from "../logging"
 
-async function createPlayerDB(
-  payload:
-    | {
-        username: string
-        password: string
-      }
-    | "anonymous",
-  next: (player: Player) => void
-) {
-  let player: Player
-  if (payload === "anonymous") {
-    player = await prisma.player.create({ data: {} })
-    logging("Anonymous player created: " + player.id, ["debug"])
-  } else {
-    const { username, password } = payload
-    player = await prisma.player.create({
-      data: {
-        username,
-        passwordHash: await bcrypt.hash(password, 10),
-        anonymous: false,
-      },
-    })
-    logging("Player registered: " + player.id, ["debug"])
-  }
+async function createPlayerDB(next: (player: Player) => void) {
+  const player = await prisma.player.create({ data: {} })
+  logging("Anonymous player created: " + player.id, ["debug"])
 
   return next(player)
 }
diff --git a/leaky-ships/lib/backend/components/getTokenFromCookie.ts b/leaky-ships/lib/backend/components/getTokenFromCookie.ts
index 6a11fec..325f9fd 100644
--- a/leaky-ships/lib/backend/components/getTokenFromCookie.ts
+++ b/leaky-ships/lib/backend/components/getTokenFromCookie.ts
@@ -11,7 +11,7 @@ async function getTokenFromCookie(
 
   // Checking for cookie presens, because it is necessary
   if (!value) {
-    return createPlayerDB("anonymous", (player) =>
+    return createPlayerDB((player) =>
       createTokenDB(player, type, (newToken) => next(newToken))
     )
   }
diff --git a/leaky-ships/lib/backend/components/updatePlayerDB.ts b/leaky-ships/lib/backend/components/updatePlayerDB.ts
new file mode 100644
index 0000000..fb102e4
--- /dev/null
+++ b/leaky-ships/lib/backend/components/updatePlayerDB.ts
@@ -0,0 +1,21 @@
+import type { Player, Prisma } from "@prisma/client"
+import prisma from "../../prisma"
+import sendError, { API } from "./sendError"
+import { rejectionErrors } from "../errors"
+
+async function updatePlayerDB(
+  context: API,
+  player: Player,
+  data: Prisma.PlayerUpdateInput,
+  next: (updatedPlayer: Player) => void
+) {
+  if (!player.anonymous) return sendError(context, rejectionErrors.registered)
+  const updatedPlayer = await prisma.player.update({
+    where: { id: player.id },
+    data,
+  })
+
+  return next(updatedPlayer)
+}
+
+export default updatePlayerDB
diff --git a/leaky-ships/pages/api/register.ts b/leaky-ships/pages/api/register.ts
index 187633a..2708f47 100644
--- a/leaky-ships/pages/api/register.ts
+++ b/leaky-ships/pages/api/register.ts
@@ -1,9 +1,13 @@
 import type { NextApiRequest, NextApiResponse } from "next"
-import type { Player } from "@prisma/client"
-import createPlayerDB from "../../lib/backend/components/createPlayerDB"
+import bcrypt from "bcrypt"
 import sendError from "../../lib/backend/components/sendError"
-import sendResponse, { Result } from "../../lib/backend/components/sendResponse"
+import sendResponse from "../../lib/backend/components/sendResponse"
 import getUserFromBody from "../../lib/backend/components/getUserFromBody"
+import getTokenFromCookie from "../../lib/backend/components/getTokenFromCookie"
+import checkTokenIsValid from "../../lib/backend/components/checkTokenIsValid"
+import getTokenDB from "../../lib/backend/components/getTokenDB"
+import updatePlayerDB from "../../lib/backend/components/updatePlayerDB"
+import getPlayerByIdDB from "../../lib/backend/components/getPlayerByIdDB"
 
 interface Data {
   registered: boolean
@@ -15,19 +19,32 @@ export default async function register(
 ) {
   const context = { req, res }
 
-  return getUserFromBody(context, (username, password) =>
-    createPlayerDB({ username, password }, (player) => {
-      sendResponse(context, registerResponse(player))
-    }).catch((err) => sendError(context, err))
-  )
-}
-
-function registerResponse(player: Player): Result<Data> {
-  // Successfull response
-  return {
-    message: "Player created : " + player.id,
-    statusCode: 201,
-    body: { registered: true },
-    type: ["debug", "infoCyan"],
-  }
+  return getTokenFromCookie(context, (refreshToken) => {
+    checkTokenIsValid(context, refreshToken, (token) => {
+      getTokenDB(context, token, (tokenDB) => {
+        getUserFromBody(context, (username, password) =>
+          getPlayerByIdDB(context, tokenDB, async (player) =>
+            updatePlayerDB(
+              context,
+              player,
+              {
+                username,
+                email: "arst",
+                passwordHash: await bcrypt.hash(password, 10),
+                anonymous: false,
+              },
+              (player) => {
+                sendResponse(context, {
+                  message: "Player registered : " + player.id,
+                  statusCode: 201,
+                  body: { registered: true },
+                  type: ["debug", "infoCyan"],
+                })
+              }
+            )
+          )
+        )
+      })
+    })
+  }).catch((err) => sendError(context, err))
 }