Starting to implements SQL connectivity

package.json

     "@react-navigation/drawer": "^6.5.1",
     "@react-navigation/native": "^6.0.14",
     "@react-navigation/native-stack": "^6.9.2",
+    "body-parser": "^1.20.1",
     "expo": "~47.0.7",
     "expo-dev-client": "~2.0.1",
     "expo-status-bar": "~1.4.2",
     "expo-web-browser": "^12.0.0",
+    "express": "^4.18.2",
+    "mysql": "^2.18.1",
     "react": "18.1.0",
     "react-dom": "18.1.0",
     "react-native": "0.70.5",

screens/account.js

 import * as React from 'react';
 import {useState} from "react";
-import { StyleSheet, View, Text } from 'react-native';
+import { StyleSheet, View, Text} from 'react-native';
 import Header from '../shared/header';
 
 export default function Account({navigation}) {

screens/solicitar.js

 import * as React from 'react';
-import { StyleSheet, View, Text } from 'react-native';
+import { StyleSheet, View, Text, Button, Linking } from 'react-native';
 import Header from '../shared/header';
 
+const express = require('express');
+const bodyParser = require('body-parser');
+const mysql = require('mysql');
+
+const connection = mysql.createPool({
+    host     : 'ada.uprrp.edu',
+    user     : 'pablo.puig1',
+    passw    : '9NA3kSExI2fGE6eV',
+    database : 'techos'
+});
+
+// Starting our app.
+const app = express();
+
+// Creating a GET route that returns data from the 'users' table.
+app.get('/users', function (req, res) {
+    // Connecting to the database.
+    connection.getConnection(function (err, connection) {
+
+    // Executing the MySQL query (select all data from the 'users' table).
+    connection.query('SELECT * FROM users', function (error, results, fields) {
+      // If some error occurs, we throw an error.
+      if (error) throw error;
+
+      // Getting the 'response' from the database and sending it to our route. This is were the data is.
+      res.send(results)
+    });
+  });
+});
+
+// Starting our server.
+app.listen(3000, () => {
+ console.log('Go to http://localhost:3000/users so you can see the data.');
+});
+
+
+
+
 export default function Solicitar({navigation}) {
     return (
         <View style={styles.container}>
-         <Text>Solicitar Screen</Text>
+         <Text>Solicitar Screen{"\n\n"}</Text>
+         <Button
+            onPress={ () => {Linking.openURL("https://forms.gle/SciwvAdF3TAE6hE97")}}
+            title="Solicita Ayuda"
+            accessibilityLable="Solicitar presionando el botón"
+         />
+         <Text>{"\n\n"}</Text>
+         try(){
+            fetch('http://ada.uprrp.edu:3000/users')
+            .then(response => response.json())
+            .then(users => console.warn(users))
+         }
         </View>
     )
 }
     container: {
         padding: 24
     },
-});
+});

shared/routes.js

+var express = require('express');
+var app = express();
+
+var mysql = require('mysql');
+var bodyParser = require('body-parser');
+
+app.use(bodyParser.json({type:'application/json'}));
+app.use(bodyParser.urlencoded({extended:true}));
+
+var con = mysql.createConnectionI({
+    host:'ada.uprrp.edu',
+    user: 'pablo.puig1',
+    password: '9NA3kSExI2fGE6eV',
+    database: 'techos'
+
+});
+
+var server = app.listen(4545, function(){
+    var host = server.address().address
+    var host = server.address().port
+});
+
+con.connect(function(error){
+    if(error) console.log(error);
+    else console.log('connected');
+})
+
+app.get('/users', function(req, res){
+    con.query('SELECT * FROM users', function(error, rows, fields){
+        if(error) console.log(error)
+        else{
+            console.log(rows);
+        }
+    })
+})

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