Complete backend

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()
+// }

api/models/countriesModel.js

@@ -0,0 +1,16 @@
+const db = require('../../data/dbConfig');
+
+module.exports = {
+	getCountries,
+	getCountryByName,
+};
+
+function getCountries() {
+	return db('countries')
+}
+
+function getCountryByName(name) {
+	return db('countries')
+		.where({ name })
+		.first()
+}

api/models/roadsModel.js

@@ -0,0 +1,9 @@
+const db = require('../../data/dbConfig');
+
+module.exports = {
+	getRoads
+};
+
+function getRoads() {
+	return db('roads')
+}

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;

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;

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;

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;

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;