diff --git a/Instructions.txt b/Instructions.txt
deleted file mode 100644
index 65bebd6..0000000
--- a/Instructions.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-# start
-
-By creating a new web app that you will call Dijkstra, I would like you to:
-
-- Find a DB modelization that allows you to store any country given its cities and its roads between them (see Belgian graph);
-
-- Store the Belgian data (see belgium.rb);
-
-- Allow a user to select Belgium as a country (or if he/she navigates to /countries/belgium), then allow to select a starting point (a Belgian city) and a destination (also a Belgian city);
-
-- Once the user has selected the starting point and the destination, tell the shortest distance between those two cities;
-
-- Describe to the user the path (for example: Bruges -> Ghent -> Brussels -> Liège) that corresponds to the shortest distance you returned to the user;
-
-- Make your code shines!
-
-# end
\ No newline at end of file
diff --git a/api/models/citiesModel.js b/api/models/citiesModel.js
new file mode 100644
index 0000000..1072e35
--- /dev/null
+++ b/api/models/citiesModel.js
@@ -0,0 +1,22 @@
+const db = require('../../data/dbConfig');
+
+module.exports = {
+	getCities,
+    getCitiesByCountry
+    // getCity,
+};
+
+function getCities() {
+	return db('cities')
+}
+
+function getCitiesByCountry(country_id) {
+	return db('cities')
+	.where({ country_id })
+}
+
+// function getCity(name) {
+// 	return db('cities')
+// 		.where({ name })
+// 		.first()
+// }
\ No newline at end of file
diff --git a/models/countriesModel.js b/api/models/countriesModel.js
similarity index 81%
rename from models/countriesModel.js
rename to api/models/countriesModel.js
index f29f60a..919de9d 100644
--- a/models/countriesModel.js
+++ b/api/models/countriesModel.js
@@ -1,4 +1,4 @@
-const db = require('../data/dbConfig');
+const db = require('../../data/dbConfig');
 
 module.exports = {
 	getCountries,
diff --git a/api/models/roadsModel.js b/api/models/roadsModel.js
new file mode 100644
index 0000000..cbff16b
--- /dev/null
+++ b/api/models/roadsModel.js
@@ -0,0 +1,9 @@
+const db = require('../../data/dbConfig');
+
+module.exports = {
+	getRoads
+};
+
+function getRoads() {
+	return db('roads')
+}
\ No newline at end of file
diff --git a/api/routes/citiesRouter.js b/api/routes/citiesRouter.js
new file mode 100644
index 0000000..6ac07ed
--- /dev/null
+++ b/api/routes/citiesRouter.js
@@ -0,0 +1,14 @@
+const router = require('express').Router();
+
+const Cities = require('../models/citiesModel');
+
+router.get('', async (req, res) => {
+    try {
+        const cities = await Cities.getCities();
+        res.status(200).json(cities);
+    } catch (e) {
+        res.status(500).json(e);
+    }
+})
+
+module.exports = router;
diff --git a/api/routes/countriesRouter.js b/api/routes/countriesRouter.js
new file mode 100644
index 0000000..ea0a831
--- /dev/null
+++ b/api/routes/countriesRouter.js
@@ -0,0 +1,14 @@
+const router = require('express').Router();
+const Cities = require('../models/citiesModel');
+
+router.get('/:country_id', async (req, res) => {
+    const { country_id } = req.params;
+    try {
+        const cities = await Cities.getCitiesByCountry(country_id);
+        res.status(200).json(cities);
+    } catch (e) {
+        res.status(500).json(e);
+    }
+})
+
+module.exports = router;
diff --git a/api/routes/pathRouter.js b/api/routes/pathRouter.js
new file mode 100644
index 0000000..1cad8e3
--- /dev/null
+++ b/api/routes/pathRouter.js
@@ -0,0 +1,40 @@
+const router = require('express').Router();
+
+const Roads = require('../models/roadsModel');
+const Cities = require('../models/citiesModel');
+
+const searchPath = require('../../helpers/dijkstra_algo');
+
+router.get('', async (req, res) => {
+    const { start_city_id, end_city_id } = req.body;
+
+    try {
+        const cities = await Cities.getCities();
+        const roads = await Roads.getRoads();
+
+        let { path, distance } = searchPath(cities, roads, start_city_id, end_city_id);
+        const formatedPath = formatPath(path, cities)
+
+        let response = { path: formatedPath, distance }
+
+        res.status(200).json(response);
+    } catch (e) {
+        res.status(500).json(e);
+    }
+})
+
+function formatPath(path, cities) {
+    const complete_path = []
+
+    for (let path_city of path) {
+        for (let city of cities) {
+            if (city.id == path_city) {
+                complete_path.push({ id: city.id, name: city.name });
+            }
+        }
+    }
+
+    return complete_path
+}
+
+module.exports = router;
diff --git a/api/routes/roadsRouter.js b/api/routes/roadsRouter.js
new file mode 100644
index 0000000..591c98f
--- /dev/null
+++ b/api/routes/roadsRouter.js
@@ -0,0 +1,13 @@
+const router = require('express').Router();
+const Roads = require('../models/roadsModel');
+
+router.get('', async (req, res) => {
+    try {
+        const roads = await Roads.getRoads();
+        res.status(200).json(roads);
+    } catch (e) {
+        res.status(500).json(e);
+    }
+})
+
+module.exports = router;
diff --git a/api/server.js b/api/server.js
index 955c363..a2d037a 100644
--- a/api/server.js
+++ b/api/server.js
@@ -1,17 +1,18 @@
 const express = require("express");
 
-// const authRouter = require('../services/auth/authRouter');
-// const usersRouter = require('../services/users/usersRouter');
-// const sessionsRouter = require('../services/sessions/sessionsRouter');
-// const dailyAveragesRouter = require('../services/dailyAverages/dailyAveragesRouter');
+const citiesRouter = require('./routes/citiesRouter');
+const roadsRouter = require('./routes/roadsRouter');
+const countriesRouter = require('./routes/countriesRouter');
+const pathRouter = require('./routes/pathRouter')
+
 
 const server = express();
 
 server.use(express.json());
 
-// server.use('/api/auth', authRouter);
-// server.use('/api/users', authenticate, usersRouter);
-// server.use('/api/users', authenticate, sessionsRouter);
-// server.use('/api/users', authenticate, dailyAveragesRouter);
+server.use('/api/cities', citiesRouter);
+server.use('/api/roads', roadsRouter);
+server.use('/api/countries', countriesRouter);
+server.use('/api/path', pathRouter);
 
 module.exports = server;
diff --git a/data/test_data/cities.js b/data/test_data/cities.js
new file mode 100644
index 0000000..214f0c4
--- /dev/null
+++ b/data/test_data/cities.js
@@ -0,0 +1,50 @@
+module.exports = [{
+    "id": 1,
+    "name": 'bruges',
+    "country_id": 1
+},
+{
+    "id": 2,
+    "name": 'antwerp',
+    "country_id": 1
+},
+{
+    "id": 3,
+    "name": 'ghent',
+    "country_id": 1
+},
+{
+    "id": 4,
+    "name": 'mechelen',
+    "country_id": 1
+},
+{
+    "id": 5,
+    "name": 'brussels',
+    "country_id": 1
+},
+{
+    "id": 6,
+    "name": 'mons',
+    "country_id": 1
+},
+{
+    "id": 7,
+    "name": 'namur',
+    "country_id": 1
+},
+{
+    "id": 8,
+    "name": 'liege',
+    "country_id": 1
+},
+{
+    "id": 9,
+    "name": 'arlon',
+    "country_id": 1
+},
+{
+    "id": 10,
+    "name": 'tournai',
+    "country_id": 1
+}]
\ No newline at end of file
diff --git a/data/test_data/roads.js b/data/test_data/roads.js
new file mode 100644
index 0000000..9cd47eb
--- /dev/null
+++ b/data/test_data/roads.js
@@ -0,0 +1,84 @@
+module.exports = [{
+"id": 1,
+"start_city_id": 1,
+"end_city_id": 3,
+"distance": 50
+},
+{
+"id": 2,
+"start_city_id": 3,
+"end_city_id": 10,
+"distance": 80
+},
+{
+"id": 3,
+"start_city_id": 10,
+"end_city_id": 5,
+"distance": 89
+},
+{
+"id": 4,
+"start_city_id": 3,
+"end_city_id": 5,
+"distance": 56
+},
+{
+"id": 5,
+"start_city_id": 3,
+"end_city_id": 2,
+"distance": 60
+},
+{
+"id": 6,
+"start_city_id": 2,
+"end_city_id": 4,
+"distance": 25
+},
+{
+"id": 7,
+"start_city_id": 4,
+"end_city_id": 5,
+"distance": 27
+},
+{
+"id": 8,
+"start_city_id": 5,
+"end_city_id": 6,
+"distance": 80
+},
+{
+"id": 9,
+"start_city_id": 6,
+"end_city_id": 7,
+"distance": 91
+},
+{
+"id": 10,
+"start_city_id": 6,
+"end_city_id": 10,
+"distance": 51
+},
+{
+"id": 11,
+"start_city_id": 7,
+"end_city_id": 9,
+"distance": 129
+},
+{
+"id": 12,
+"start_city_id": 9,
+"end_city_id": 7,
+"distance": 123
+},
+{
+"id": 13,
+"start_city_id": 8,
+"end_city_id": 7,
+"distance": 65
+},
+{
+"id": 14,
+"start_city_id": 8,
+"end_city_id": 5,
+"distance": 97
+}]
\ No newline at end of file
diff --git a/helpers/dijkstra_algo.js b/helpers/dijkstra_algo.js
new file mode 100644
index 0000000..3048463
--- /dev/null
+++ b/helpers/dijkstra_algo.js
@@ -0,0 +1,55 @@
+const Queue = require('./queue');
+const Graph = require('./graph');
+
+function findPathWithDijkstra(cities, roads, startNode, endNode) {
+    const graph = new Graph();
+    
+    // Add cities and roads to graph
+    for (let city of cities) {
+        graph.addNode(city.id)
+    }
+
+    for (let { start_city_id, end_city_id, distance } of roads) {
+        graph.addEdge(start_city_id, end_city_id, distance)
+    }
+    
+    // Dijkstra path search algo
+    let times = {};
+    let backtrace = {};
+    let queue = new Queue();
+
+    times[startNode] = 0;
+
+    graph.nodes.forEach(node => {
+        if (node !== startNode) {
+            times[node] = Infinity
+        }
+    });
+
+    queue.enqueue([startNode, 0]);
+
+    while (queue.size()) {
+        let shortestStep = queue.dequeue();
+        let currentNode = shortestStep[0];   
+        graph.adjacencyList[currentNode].forEach(neighbor => {
+            let time = times[currentNode] + neighbor.distance;
+        
+            if (time < times[neighbor.node]) {
+                times[neighbor.node] = time;
+                backtrace[neighbor.node] = currentNode;
+                queue.enqueue([neighbor.node, time]);
+            }
+        });
+    }
+
+    let path = [endNode];
+    let lastStep = endNode;  while(lastStep !== startNode) {
+        path.unshift(backtrace[lastStep])
+        lastStep = backtrace[lastStep]
+    } 
+    
+    // return `Path is ${path} and time is ${times[endNode]}`
+    return {path, distance: times[endNode]}
+}
+
+module.exports = findPathWithDijkstra;
diff --git a/helpers/graph.js b/helpers/graph.js
new file mode 100644
index 0000000..ee42b64
--- /dev/null
+++ b/helpers/graph.js
@@ -0,0 +1,18 @@
+class Graph {
+    constructor() {
+        this.nodes = [];
+        this.adjacencyList = {};
+    }
+
+    addNode(node) {
+        this.nodes.push(node); 
+        this.adjacencyList[node] = [];
+    }
+
+    addEdge(node1, node2, distance) {
+        this.adjacencyList[node1].push({node:node2, distance});
+        this.adjacencyList[node2].push({node:node1, distance});
+    }
+}
+
+module.exports = Graph;
\ No newline at end of file
diff --git a/helpers/queue.js b/helpers/queue.js
new file mode 100644
index 0000000..6d3335e
--- /dev/null
+++ b/helpers/queue.js
@@ -0,0 +1,21 @@
+class Queue {
+    constructor() {
+    this.store = [];
+    }
+
+    size() {
+        return this.store.length
+    }
+
+    enqueue(node) {
+        this.store.push(node);
+    }
+
+    dequeue() {
+        if (this.size() > 0) {
+            return this.store.shift();
+        }
+    } 
+}
+
+module.exports = Queue;
\ No newline at end of file
diff --git a/helpers/test_dijkstra.js b/helpers/test_dijkstra.js
new file mode 100644
index 0000000..f07b860
--- /dev/null
+++ b/helpers/test_dijkstra.js
@@ -0,0 +1,18 @@
+const searchPath = require('../helpers/dijkstra_algo');
+const cities = require('../data/test_data/cities');
+const roads = require('../data/test_data/roads');
+
+let { path, distance} = searchPath(cities, roads, 1, 9);
+
+const formatedPath = [];
+
+// I didn't use map or filter because it doesn't preserve the order
+for (let path_city of path) {
+    for (let city of cities) {
+        if (city.id == path_city) {
+            formatedPath.push({ id: city.id, name: city.name });
+        }
+    }
+}
+
+console.log(formatedPath)
\ No newline at end of file
diff --git a/models/citiesModel.js b/models/citiesModel.js
deleted file mode 100644
index e69de29..0000000
diff --git a/models/roadsModel.js b/models/roadsModel.js
deleted file mode 100644
index e69de29..0000000
diff --git a/package-lock.json b/package-lock.json
index a9769a0..bd410d2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,8 @@
 {
-  "requires": true,
+  "name": "dijkstra",
+  "version": "1.0.0",
   "lockfileVersion": 1,
+  "requires": true,
   "dependencies": {
     "abbrev": {
       "version": "1.1.1",
@@ -27,11 +29,72 @@
         "uri-js": "^4.2.2"
       }
     },
+    "ansi-align": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ansi-align/-/ansi-align-2.0.0.tgz",
+      "integrity": "sha1-w2rsy6VjuJzrVW82kPCx2eNUf38=",
+      "dev": true,
+      "requires": {
+        "string-width": "^2.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "dev": true,
+          "requires": {
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
     "ansi-regex": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
       "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
     },
+    "ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "dev": true,
+      "requires": {
+        "color-convert": "^1.9.0"
+      }
+    },
+    "anymatch": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.1.tgz",
+      "integrity": "sha512-mM8522psRCqzV+6LhomX5wgp25YVibjh8Wj23I5RPkPppSVSjyKD2A2mBJmWGa+KN7f2D6LNh9jkBCeyLktzjg==",
+      "dev": true,
+      "requires": {
+        "normalize-path": "^3.0.0",
+        "picomatch": "^2.0.4"
+      }
+    },
     "aproba": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/aproba/-/aproba-1.2.0.tgz",
@@ -182,6 +245,12 @@
         "tweetnacl": "^0.14.3"
       }
     },
+    "binary-extensions": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.0.0.tgz",
+      "integrity": "sha512-Phlt0plgpIIBOGTT/ehfFnbNlfsDEiqmzE2KRXoX1bLIlir4X/MR+zSyBEkL05ffWgnRSf/DXv+WrUAVr93/ow==",
+      "dev": true
+    },
     "bluebird": {
       "version": "3.7.2",
       "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
@@ -204,6 +273,54 @@
         "type-is": "~1.6.17"
       }
     },
+    "boxen": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/boxen/-/boxen-1.3.0.tgz",
+      "integrity": "sha512-TNPjfTr432qx7yOjQyaXm3dSR0MH9vXp7eT1BFSl/C51g+EFnOR9hTg1IreahGBmDNCehscshe45f+C1TBZbLw==",
+      "dev": true,
+      "requires": {
+        "ansi-align": "^2.0.0",
+        "camelcase": "^4.0.0",
+        "chalk": "^2.0.1",
+        "cli-boxes": "^1.0.0",
+        "string-width": "^2.0.0",
+        "term-size": "^1.2.0",
+        "widest-line": "^2.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "dev": true,
+          "requires": {
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -261,16 +378,96 @@
         "unset-value": "^1.0.0"
       }
     },
+    "camelcase": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+      "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+      "dev": true
+    },
+    "capture-stack-trace": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/capture-stack-trace/-/capture-stack-trace-1.0.1.tgz",
+      "integrity": "sha512-mYQLZnx5Qt1JgB1WEiMCf2647plpGeQ2NMR/5L0HNZzGQo4fuSPnK+wjfPnKZV0aiJDgzmWqqkV/g7JD+DW0qw==",
+      "dev": true
+    },
     "caseless": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
     },
+    "chalk": {
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "^3.2.1",
+        "escape-string-regexp": "^1.0.5",
+        "supports-color": "^5.3.0"
+      }
+    },
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+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
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+          }
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+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
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+          }
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     "wrappy": {
       "version": "1.0.2",
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       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
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diff --git a/package.json b/package.json
index dfc5359..5c85787 100644
--- a/package.json
+++ b/package.json
@@ -9,9 +9,11 @@
     "nodejs": "^0.0.0",
     "sqlite3": "^4.1.1"
   },
-  "devDependencies": {},
+  "devDependencies": {
+    "nodemon": "^2.0.2"
+  },
   "scripts": {
-    "test": "test",
+    "watch": "nodemon index.js",
     "start": "node index.js"
   },
   "author": "",