diff --git a/package-lock.json b/package-lock.json
index 3fb12fd..fe39c38 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "ISC",
       "dependencies": {
         "cors": "^2.8.5",
-        "express": "^4.18.2",
+        "express": "^4.19.2",
         "morgan": "^1.10.0",
         "nodemon": "^3.0.1"
       },
@@ -1410,12 +1410,12 @@
       }
     },
     "node_modules/body-parser": {
-      "version": "1.20.1",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
-      "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
+      "version": "1.20.2",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.2.tgz",
+      "integrity": "sha512-ml9pReCu3M61kGlqoTm2umSXTlRTuGTx0bfYj+uIUKKYycG5NtSbeetV3faSU6R7ajOPw0g/J1PvK4qNy7s5bA==",
       "dependencies": {
         "bytes": "3.1.2",
-        "content-type": "~1.0.4",
+        "content-type": "~1.0.5",
         "debug": "2.6.9",
         "depd": "2.0.0",
         "destroy": "1.2.0",
@@ -1423,7 +1423,7 @@
         "iconv-lite": "0.4.24",
         "on-finished": "2.4.1",
         "qs": "6.11.0",
-        "raw-body": "2.5.1",
+        "raw-body": "2.5.2",
         "type-is": "~1.6.18",
         "unpipe": "1.0.0"
       },
@@ -1730,9 +1730,9 @@
       "dev": true
     },
     "node_modules/cookie": {
-      "version": "0.5.0",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz",
-      "integrity": "sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw==",
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.6.0.tgz",
+      "integrity": "sha512-U71cyTamuh1CRNCfpGY6to28lxvNwPG4Guz/EVjgf3Jmzv0vlDp1atT9eS5dDjMYHucpHbWns6Lwf3BKz6svdw==",
       "engines": {
         "node": ">= 0.6"
       }
@@ -2032,16 +2032,16 @@
       }
     },
     "node_modules/express": {
-      "version": "4.18.2",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.18.2.tgz",
-      "integrity": "sha512-5/PsL6iGPdfQ/lKM1UuielYgv3BUoJfz1aUwU9vHZ+J7gyvwdQXFEBIEIaxeGf0GIcreATNyBExtalisDbuMqQ==",
+      "version": "4.19.2",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.19.2.tgz",
+      "integrity": "sha512-5T6nhjsT+EOMzuck8JjBHARTHfMht0POzlA60WV2pMD3gyXw2LZnZ+ueGdNxG+0calOJcWKbpFcuzLZ91YWq9Q==",
       "dependencies": {
         "accepts": "~1.3.8",
         "array-flatten": "1.1.1",
-        "body-parser": "1.20.1",
+        "body-parser": "1.20.2",
         "content-disposition": "0.5.4",
         "content-type": "~1.0.4",
-        "cookie": "0.5.0",
+        "cookie": "0.6.0",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
         "depd": "2.0.0",
@@ -4013,9 +4013,9 @@
       }
     },
     "node_modules/raw-body": {
-      "version": "2.5.1",
-      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
-      "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.2.tgz",
+      "integrity": "sha512-8zGqypfENjCIqGhgXToC8aB2r7YrBX+AQAfIPs/Mlk+BtPTztOvTS01NRW/3Eh60J+a48lt8qsCzirQ6loCVfA==",
       "dependencies": {
         "bytes": "3.1.2",
         "http-errors": "2.0.0",
diff --git a/package.json b/package.json
index ec6510a..d8aab1f 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   "homepage": "https://github.com/boolean-uk/api-address-book#readme",
   "dependencies": {
     "cors": "^2.8.5",
-    "express": "^4.18.2",
+    "express": "^4.19.2",
     "morgan": "^1.10.0",
     "nodemon": "^3.0.1"
   },
diff --git a/request-response-cycle.png b/request-response-cycle.png
new file mode 100644
index 0000000..d91f3f0
Binary files /dev/null and b/request-response-cycle.png differ
diff --git a/src/controllers/contacts/contactControllers.js b/src/controllers/contacts/contactControllers.js
new file mode 100644
index 0000000..851f73e
--- /dev/null
+++ b/src/controllers/contacts/contactControllers.js
@@ -0,0 +1,127 @@
+const contacts = require("../../../data/contacts.js")
+const meetings = require("../../../data/meetings.js")
+const {
+  verifyContactBody,
+  findContactById,
+  findContactMeetings,
+  deleteContactMeetings,
+  removeContact,
+  foundContactId,
+  replaceUpdatedContact,
+  verifyResultFound,
+  verifyMeetingLength,
+  verifyMeetingBody,
+  pushData
+} = require("../../domain/contacts/contactRepository.js")
+
+const getAllContacts = (req, res) => {
+  res.json({
+    contacts: contacts,
+  })
+}
+
+const createContact = (req, res) => {
+  const contact = req.body
+
+  verifyContactBody(contact, res)
+
+  const contactId = { id: contacts.length + 1, ...contact }
+
+  pushData(contacts, contactId)
+
+  res.status(201).json({
+    contact: contactId,
+  })
+}
+
+const getContactById = (req, res) => {
+  const id = Number(req.params.id)
+  const result = findContactById(contacts, id)
+
+  verifyResultFound(result, res, id)
+
+  res.json({
+    contact: result,
+  })
+}
+
+const deleteContact = (req, res) => {
+  const id = Number(req.params.id)
+  const result = findContactById(contacts, id)
+  const contactMeetings = findContactMeetings(meetings, result)
+
+  verifyResultFound(result, res, id)
+
+  deleteContactMeetings(contactMeetings, meetings, result)
+
+  removeContact(contacts, result)
+
+  res.json({
+    contact: result,
+  })
+}
+
+const updateContact = (req, res) => {
+  const contact = req.body
+  const id = Number(req.params.id)
+  const result = foundContactId(contacts, id)
+
+  verifyResultFound(result, res, id)
+
+  verifyContactBody(contact, res)
+
+  const contactId = { id: result.id, ...contact }
+
+  replaceUpdatedContact(contacts, result, contactId)
+
+  res.json({
+    contact: contactId,
+  })
+}
+
+const getContactMeetings = (req, res) => {
+  const id = Number(req.params.id)
+  const contact = foundContactId(contacts, id)
+
+  verifyResultFound(contact, res, id)
+
+  const meeting = findContactMeetings(meetings, contact)
+
+  verifyMeetingLength(meeting, res, contact)
+
+  res.json({
+    meetings: meeting,
+  })
+}
+
+const createContactMeeting = (req, res) => {
+  const id = Number(req.params.id)
+  const contact = foundContactId(contacts, id)
+  const meeting = req.body
+
+  verifyResultFound(contact, res, id)
+
+  verifyMeetingBody(meeting, res)
+
+  const meetingIDs = {
+    ...meeting,
+    contactId: contact.id,
+    id: meetings.length + 1,
+  }
+
+  pushData(meetings, meetingIDs)
+
+  res.status(201).json({
+    meeting: meetingIDs,
+  })
+}
+
+module.exports = {
+  getAllContacts,
+  createContact,
+  getContactById,
+  deleteContact,
+  updateContact,
+  getContactMeetings,
+  createContactMeeting
+}
diff --git a/src/controllers/meetings/meetingControllers.js b/src/controllers/meetings/meetingControllers.js
new file mode 100644
index 0000000..a7e99ca
--- /dev/null
+++ b/src/controllers/meetings/meetingControllers.js
@@ -0,0 +1,67 @@
+const meetings = require("../../../data/meetings.js")
+const { verifyMeetingBody } = require("../../domain/contacts/contactRepository.js")
+const {
+  foundMeetings,
+  verifyMeetingFound,
+  removeMeeting,
+  replaceUpdatedMeeting
+} = require("../../domain/meetings/meetingRepository.js")
+
+const getAllMeetings = (req, res) => {
+  res.json({
+    meetings: meetings,
+  })
+}
+
+const getMeetingById = (req, res) => {
+  const id = Number(req.params.id)
+  const result = foundMeetings(meetings, id)
+
+  verifyMeetingFound(result, res, id)
+
+  res.json({
+    meeting: result,
+  })
+}
+
+const deleteMeeting = (req, res) => {
+  const id = Number(req.params.id)
+  const result = foundMeetings(meetings, id)
+
+  verifyMeetingFound(result, res, id)
+
+  removeMeeting(meetings, result)
+
+  res.json({
+    meeting: result,
+  })
+}
+
+const updateMeeting = (req, res) => {
+  const id = Number(req.params.id)
+  const result = foundMeetings(meetings, id)
+  const meeting = req.body
+
+  verifyMeetingFound(result, res, id)
+
+  verifyMeetingBody(meeting, res)
+
+  const meetingIDs = {
+    ...meeting,
+    contactId: result.contactId,
+    id: result.id,
+  }
+
+  replaceUpdatedMeeting(meetings, result, meetingIDs)
+
+  res.json({
+    meeting: meetingIDs,
+  })
+}
+
+module.exports = {
+  getAllMeetings,
+  getMeetingById,
+  deleteMeeting,
+  updateMeeting
+}
diff --git a/src/domain/contacts/contactRepository.js b/src/domain/contacts/contactRepository.js
new file mode 100644
index 0000000..403f061
--- /dev/null
+++ b/src/domain/contacts/contactRepository.js
@@ -0,0 +1,119 @@
+const contactObj = [
+  "firstName",
+  "lastName",
+  "street",
+  "city",
+  "type",
+  "email",
+  "linkedin",
+  "twitter"
+]
+const meetingsObj = ["name"]
+
+const verifyContactBody = (contact, res) => {
+  for (const prop of contactObj) {
+    if (contact[prop] === undefined) {
+      return res.status(400).send({
+        message: `${prop} is missing.`,
+      })
+    }
+  }
+
+  for (const prop in contact) {
+    if (typeof contact[prop] !== "string") {
+      return res.status(400).send({
+        message: `${prop} needs to be a string.`,
+      })
+    }
+
+    if (!contactObj.includes(prop)) {
+      return res.status(400).send({
+        message: `${prop} isn't a contact property.`,
+      })
+    }
+  }
+}
+
+const pushData = (where, what) => {
+  return where.push(what)
+}
+
+const findContactById = (contacts, id) => {
+  return contacts.find((contact) => contact.id === id)
+}
+
+const findContactMeetings = (meetings, result) => {
+  return meetings.filter((m) => m.contactId === result.id)
+}
+
+const deleteContactMeetings = (contactMeetings, meetings) => {
+  return contactMeetings.forEach((meeting) => {
+    meetings.splice(meetings.indexOf(meeting), 1)
+  })
+}
+
+const removeContact = (contacts, result) => {
+  return contacts.splice(contacts.indexOf(result), 1)
+}
+
+const foundContactId = (contacts, id) => {
+  return contacts.find((c) => c.id === id)
+}
+
+const replaceUpdatedContact = (contacts, result, contactId) => {
+  return contacts.splice(contacts.indexOf(result), 1, contactId)
+}
+
+const verifyResultFound = (result, res, id) => {
+  if (!result) {
+    return res.status(404).send({
+      message: `contact with id of ${id} not found.`,
+    })
+  }
+}
+
+const verifyMeetingLength = (meeting, res, contact) => {
+  if (meeting.length === 0) {
+    return res.status(404).send({
+      message: `${contact.firstName} ${contact.lastName} didn't have any meeting.`,
+    })
+  }
+}
+
+const verifyMeetingBody = (meeting, res) => {
+  for (const prop of meetingsObj) {
+    if (meeting[prop] === undefined) {
+      return res.status(404).json({
+        message: `${prop} is missing`,
+      })
+    }
+  }
+
+  for (const prop in meeting) {
+    if (typeof meeting[prop] !== "string") {
+      return res.status(404).json({
+        message: `${prop} needs to be a string`,
+      })
+    }
+
+    if (!meetingsObj.includes(prop)) {
+      return res.status(404).json({
+        message: `${prop} isn't a meeting property`,
+      })
+    }
+  }
+}
+
+module.exports = {
+  verifyContactBody,
+  pushData,
+  findContactById,
+  findContactMeetings,
+  deleteContactMeetings,
+  removeContact,
+  foundContactId,
+  replaceUpdatedContact,
+  verifyResultFound,
+  verifyMeetingLength,
+  verifyMeetingBody
+}
diff --git a/src/domain/meetings/meetingRepository.js b/src/domain/meetings/meetingRepository.js
new file mode 100644
index 0000000..e932f21
--- /dev/null
+++ b/src/domain/meetings/meetingRepository.js
@@ -0,0 +1,26 @@
+const foundMeetings = (meetings, id) => {
+  return meetings.find((meeting) => meeting.id === id)
+}
+
+const verifyMeetingFound = (result, res, id) => {
+  if (!result) {
+    return res.status(404).send({
+      message: `meeting with id of ${id} not found.`,
+    })
+  }
+}
+
+const removeMeeting = (meetings, result) => {
+  return meetings.splice(meetings.indexOf(result), 1)
+}
+
+const replaceUpdatedMeeting = (meetings, result, meetingIDs) => {
+  return meetings.splice(meetings.indexOf(result), 1, meetingIDs)
+}
+
+module.exports = {
+  foundMeetings,
+  verifyMeetingFound,
+  removeMeeting,
+  replaceUpdatedMeeting
+}
diff --git a/src/index.js b/src/index.js
index 8c18618..620a89a 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,6 @@
-const app = require('./server.js')
+const app = require("./server.js")
 const port = 3030
 
 app.listen(port, () => {
- console.log(`Server is running on http://localhost:${port}/`)
+  console.log(`Server is running on http://localhost:${port}/`)
 })
diff --git a/src/routes/contacts/contactRouter.js b/src/routes/contacts/contactRouter.js
new file mode 100644
index 0000000..7a3077b
--- /dev/null
+++ b/src/routes/contacts/contactRouter.js
@@ -0,0 +1,28 @@
+const express = require("express")
+const router = express.Router()
+
+const {
+  getAllContacts,
+  createContact,
+  getContactById,
+  deleteContact,
+  updateContact,
+  getContactMeetings,
+  createContactMeeting
+} = require("../../controllers/contacts/contactControllers")
+
+router.get("/", getAllContacts)
+
+router.post("/", createContact)
+
+router.get("/:id", getContactById)
+
+router.delete("/:id", deleteContact)
+
+router.put("/:id", updateContact)
+
+router.get("/:id/meetings", getContactMeetings)
+
+router.post("/:id/meetings", createContactMeeting)
+
+module.exports = router
diff --git a/src/routes/meetings/meetingRouter.js b/src/routes/meetings/meetingRouter.js
new file mode 100644
index 0000000..b1e7681
--- /dev/null
+++ b/src/routes/meetings/meetingRouter.js
@@ -0,0 +1,19 @@
+const express = require("express")
+const router = express.Router()
+
+const {
+  getAllMeetings,
+  getMeetingById,
+  deleteMeeting,
+  updateMeeting
+} = require("../../controllers/meetings/meetingControllers")
+
+router.get("/", getAllMeetings)
+
+router.get("/:id", getMeetingById)
+
+router.delete("/:id", deleteMeeting)
+
+router.put("/:id", updateMeeting)
+
+module.exports = router
diff --git a/src/server.js b/src/server.js
index 30f0ce3..3714a40 100644
--- a/src/server.js
+++ b/src/server.js
@@ -3,11 +3,14 @@ const morgan = require("morgan")
 const cors = require("cors")
 const app = express()
 
+const contactRouter = require("../src/routes/contacts/contactRouter.js")
+const meetingRouter = require("../src/routes/meetings/meetingRouter.js")
+
 app.use(morgan("dev"))
 app.use(cors())
 app.use(express.json())
 
-// write your app code here
-
+app.use("/contacts", contactRouter)
+app.use("/meetings", meetingRouter)
 
 module.exports = app