diff --git a/.gitignore b/.gitignore
index f1ff414..55800a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,5 @@ node_modules
 .env.development.local
 .env.test.local
 .env.production.local
-package-lock.json
\ No newline at end of file
+package-lock.json
+.dogs-frontend
\ No newline at end of file
diff --git a/README.md b/README.md
index 0f9f073..3d35208 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,6 @@ Install dependencies with `npm install`, then start the server by running `npm r
 ## View it live
 
 Every project should be deployed somewhere. Be sure to include the link to the deployed project so that the viewer can click around and see what it's all about.
+
+
+Deployed: https://lillebrorgrodas-first-api.onrender.com/
diff --git a/package.json b/package.json
index bf25bb6..e229a90 100644
--- a/package.json
+++ b/package.json
@@ -12,8 +12,12 @@
     "@babel/core": "^7.17.9",
     "@babel/node": "^7.16.8",
     "@babel/preset-env": "^7.16.11",
+    "bcryptjs": "^3.0.2",
     "cors": "^2.8.5",
+    "dotenv": "^16.5.0",
     "express": "^4.17.3",
+    "express-list-endpoints": "^7.1.1",
+    "mongoose": "^8.15.1",
     "nodemon": "^3.0.1"
   }
-}
+}
\ No newline at end of file
diff --git a/server.js b/server.js
index f47771b..0c0de48 100644
--- a/server.js
+++ b/server.js
@@ -1,21 +1,353 @@
 import cors from "cors"
 import express from "express"
+import listEndpoints from "express-list-endpoints"
+import mongoose from "mongoose"
+import dotenv from "dotenv"
+import bcrypt from "bcryptjs"
+import crypto from "crypto"
+
+dotenv.config()
+
+const mongoUrl = process.env.MONGO_URL || "mongodb://localhost/thoughts-api"
+// Connect to MongoDB
+mongoose.connect(mongoUrl)
+
+
 
 // Defines the port the app will run on. Defaults to 8080, but can be overridden
 // when starting the server. Example command to overwrite PORT env variable value:
 // PORT=9000 npm start
-const port = process.env.PORT || 8080
+const port = process.env.PORT || 8082
 const app = express()
 
 // Add middlewares to enable cors and json body parsing
 app.use(cors())
 app.use(express.json())
 
-// Start defining your routes here
+
+const thoughtSchema = new mongoose.Schema({
+  message: {
+    type: String,
+    required: true,
+    minlength: 5,
+    maxlength: 140,
+  },
+  hearts: {
+    type: Number,
+    default: 0,
+  },
+  category: {
+    type: String,
+    enum: ["happy", "family", "friends", "pets", "nature", "funny", "gratitude", "other"],
+    default: "other",
+  },
+  date: {
+    type: Date,
+    default: Date.now,
+  },
+  createdBy: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: "User",
+    required: false,
+  },
+})
+
+const userSchema = new mongoose.Schema({
+  username: {
+    type: String,
+    required: true,
+    unique: true,
+    minlength: 3,
+    max_length: 20,
+  },
+  password: {
+    type: String,
+    required: true,
+    minlength: 6,
+    max_length: 50,
+  },
+  email: {
+    type: String,
+    required: true,
+    unique: true,
+    match: /.+\@.+\..+/,
+  },
+  accessToken: {
+    type: String,
+    default: () => crypto.randomBytes(128).toString("hex"),
+  },
+})
+
+const authenticationUser = async (req, res, next) => {
+  const user = await User.findOne({ accessToken: req.headers.authorization })
+  if (user) {
+    req.user = user
+    next()
+  } else {
+    res.status(401).json({ loggedOut: true, message: "Unauthorized" })
+  }
+}
+
+const Thought = mongoose.model("Thought", thoughtSchema)
+const User = mongoose.model("User", userSchema)
+
+
+
 app.get("/", (req, res) => {
-  res.send("Hello Technigo!")
+  const endpoints = listEndpoints(app)
+  res.json({
+    message: "Welcome to the Happy thoughts API",
+    endpoints: endpoints
+  })
 })
 
+app.get("/thoughts", async (req, res) => {
+  const { message, hearts, category, date } = req.query
+  let query = {}
+  if (message) {
+    query.message = message.toLowerCase()
+  }
+  if (hearts) {
+    query.hearts = hearts
+  }
+  if (category) {
+    query.category = category.toLowerCase()
+  }
+  if (date) {
+    query.date = { $gte: new Date(date) }
+  }
+  try {
+    const filteredThoughts = await Thought.find(query)
+      .sort({ date: -1 })
+      .populate("createdBy", "username")
+    if (filteredThoughts.length === 0) {
+      return res.status(404).json({
+        success: false,
+        response: [],
+        message: "No messages found matching the criteria. Please try different filters."
+      })
+    }
+    res.status(200).json({
+      success: true,
+      response: filteredThoughts,
+      message: "Messages found successfully"
+    })
+  } catch (error) {
+    console.error("Error fetching messages:", error)
+    res.status(500).json({
+      success: false,
+      response: error,
+      message: "An error occurred while fetching messages"
+    })
+  }
+})
+
+
+app.get("/thoughts/:id", async (req, res) => {
+  const { id } = req.params
+
+  try {
+    const thought = await Thought.findById(id)
+
+    if (!thought) {
+      return res.status(404).json({
+        success: false,
+        message: "Thought not found"
+      })
+    }
+    res.status(200).json({
+      success: true,
+      response: thought,
+      message: "Thought found successfully"
+    })
+  } catch (error) {
+    res.status(500).json({
+      success: false,
+      response: error,
+      message: "An error occurred while fetching the thought"
+    })
+  }
+})
+
+app.post("/users/register", async (req, res) => {
+  try {
+    const { username, password, email } = req.body
+
+    if (!username || !password || !email) {
+      return res.status(400).json({
+        success: false,
+        message: "Username, password and email are required"
+      })
+    }
+
+    const existingUser = await User.findOne({ $or: [{ username }, { email }] })
+    if (existingUser) {
+      return res.status(400).json({
+        success: false,
+        message: "Username or email already exists"
+      })
+    }
+
+
+    const user = new User({
+      username,
+      password: bcrypt.hashSync(password, 10), // Hash the password
+      email
+    })
+    user.save()
+    res.status(201).json({
+      id: user._id,
+      accessToken: user.accessToken,
+
+    })
+  } catch (error) {
+    return res.status(500).json({
+      success: false,
+      message: "An error occurred while registering the user",
+      error: error.message
+    })
+  }
+}
+)
+
+app.post("/users/login", async (req, res) => {
+  const user = await User.findOne({ email: req.body.email })
+  if (user && bcrypt.compareSync(req.body.password, user.password)) {
+    res.json({ userId: user._id, accessToken: user.accessToken })
+  } else {
+    res.status(401).json({ notFound: true, message: "Invalid email or password" })
+  }
+})
+
+
+
+app.post("/thoughts", authenticationUser, async (req, res) => {
+  const { message, hearts, category, date, createdBy } = req.body
+
+  try {
+    const newThought = await new Thought({
+      message,
+      hearts,
+      category,
+      date,
+      createdBy
+    }).save()
+    res.status(201).json({
+      success: true,
+      response: newThought,
+      message: "Thought created successfully"
+    })
+  } catch (error) {
+    res.status(500).json({
+      success: false,
+      response: error,
+      message: "An error occurred while creating the thought"
+    })
+  }
+})
+
+app.post("/thoughts/:id/like", async (req, res) => {
+  try {
+    const { id } = req.params
+    const updatedThought = await Thought.findByIdAndUpdate(
+      id,
+      { $inc: { hearts: 1 } },
+      { new: true }
+    )
+    if (!updatedThought) {
+      return res.status(404).json({ success: false, message: "Thought not found" })
+    }
+    res.status(200).json({ success: true, response: updatedThought })
+  } catch (error) {
+    console.error("Error liking thought:", error)
+    res.status(500).json({ success: false, message: "Error liking thought" })
+  }
+})
+
+
+app.delete("/thoughts/:id", authenticationUser, async (req, res) => {
+  const { id } = req.params
+  try {
+
+    const thought = await Thought.findById(id)
+    if (!thought) {
+      return res.status(404).json({
+        success: false,
+        response: null,
+        message: "Thought not found"
+      })
+    }
+
+    if (thought.createdBy.toString() !== req.user._id.toString()) {
+      return res.status(403).json({
+        success: false,
+        response: null,
+        message: "You are not authorized to delete this thought"
+      })
+    }
+
+
+    const deletedThought = await Thought.findByIdAndDelete(id)
+
+    res.status(200).json({
+      success: true,
+      response: deletedThought,
+      message: "Thought deleted successfully"
+    })
+  } catch (error) {
+    res.status(500).json({
+      success: false,
+      response: error,
+      message: "An error occurred while deleting the thought"
+    })
+  }
+})
+
+app.put("/thoughts/:id", authenticationUser, async (req, res) => {
+  const { id } = req.params
+  const { message, category } = req.body
+  try {
+    const thought = await Thought.findById(id)
+    if (!thought) {
+      return res.status(404).json({
+        success: false,
+        response: null,
+        message: "Thought not found"
+      })
+    }
+    if (thought.createdBy.toString() !== req.user._id.toString()) {
+      return res.status(403).json({
+        success: false,
+        response: null,
+        message: "You are not authorized to update this thought"
+      })
+    }
+
+    const updateData = {}
+    if (message) updateData.message = message
+    if (category) updateData.category = category
+
+    const updatedThought = await Thought.findByIdAndUpdate(
+      id, updateData,
+      { new: true, runValidators: true })
+
+
+    res.status(200).json({
+      success: true,
+      response: updatedThought,
+      message: "Thought updated successfully"
+    })
+  } catch (error) {
+    res.status(500).json({
+      success: false,
+      response: error,
+      message: "An error occurred while updating the thought"
+    })
+  }
+})
+
+
+
 // Start the server
 app.listen(port, () => {
   console.log(`Server running on http://localhost:${port}`)